Author: vemcoblogs

Compressed Air System Piping: Design Considerations for Pressure Drop Reduction

by vemcoblogs -

Compressed air is a major source of power in an industrial setting. But to get the most out of your air compressor system, you need to make sure all the ancillaries are well-designed and installed. Piping is an essential support system which plays a huge role in how well your compressed air system performs overall. We at VEMC are a top-notch ELGi dealer in Mumbai and in this blog, we tell you all you need to know about the design consideration of your piping to reduce the pressure drop in your air compressor system.

Factors contributing to pressure drop in piping

  1. Pipe diameter: This is one of the most obvious factors that impacts the pressure of the compressed air in the piping. Pipe diameter impacts the velocity of the air moving through the pipes. To put it simply, larger the pipe diameter, lesser will be the pressure for a given volume of air.
  2. Length of the pipe: Longer the pipe, greater will be the friction loss and hence lesser will be the pressure exerted by the compressed air. Pressure drop is thus directly proportional to the pipe length.
  3. Material: The friction that the moving air particles experience against the walls of the piping also contributes significantly to the drop in pressure. Thus, the material of the piping walls will also determine the extent of pressure drop.
  4. Fittings: How the piping is designed and fitted is an important factor that affects the drop in pressure. A highly complicated design with too many bends will reduce greater amount of air pressure as compared to a more straightforward one.

Strategies to minimise pressure drop

Now that we have understood what factors cause drop in pressure, let’s take a look at how to avoid or at least minimise it.

  1. Appropriate pipe sizing: Make sure the pipes are of the right size in terms of both length and diameter. Both long as well as broad pipes can cause unnecessary drop in pressure.
  2. Avoid unnecessary bends and restrictions: As much as possible, the piping design should be simple and straightforward. Too many bends and restrictions can also cause a drop in pressure due to greater friction.
  3. Use smooth-surfaced pipes: As mentioned above, friction of air particles with the internal surface of the pipes can also reduce the pressure of the compressed air. It is therefore advisable to use smooth-surfaced material for your piping.

It is quite clear that not only does the power and capacity of your air compressor matter but also the overall system and piping design. With the right piping design and installation, you can maintain optimum performance by reducing drop in pressure.

For more expert advice on your air compressor systems, feel free to call us on 022 43436655 or email us at marketing@vemc.co.in. We at VEMC are the leading ELGi compressor dealer in Mumbai with a wide array of air compressor options available to meet your needs. 

The Impact of Liquid Viscosity on Centrifugal Pump Performance

by vemcoblogs -

Pumps do not operate with the same efficiency and effectiveness with all liquids. One of the most important characteristics of the liquids that impact pump performance is their viscosity. VEMC is a leading Kirloskar pump authorised dealer based in Mumbai and in this blog, we tell you about the impact of liquid viscosity on centrifugal pump performance.

Definition and units of liquid viscosity

Let’s first try to understand what viscosity really means. In simple terms, viscosity can be thought of as the thickness of a liquid. However more technically, it refers to the resistance to flow at a given temperature. At the molecular level, it represents the interaction (more specifically friction) between molecules in a particular liquid. Higher viscosity means a liquid is thicker, that is, it offers more resistance to flow and hence requires more energy to be displaced from one point to another.

Unit of viscosity: Viscosity is measured in Newton-Second per Square Metre.

How viscosity affects pump efficiency and flow rate

As stated above, more viscous liquids are harder to move due to the greater resistance to flow they offer. As such, higher viscosity has a negative effect on the performance of a pump in terms of flow rate as well as head. This means if you are looking to displace highly viscous liquids such as oil or honey, you will need a really powerful pump.

Selecting the appropriate pump type and size for liquids with different viscosities

Let’s now take a look at which pumps are suited for which levels of viscosity.

  • For low viscosity fluids such as water, centrifugal pumps are the best. However, even with a slight increase in the viscosity of the liquid, centrifugal pumps’ performance may be affected.
  • For highly viscous liquids such as oil or honey, positive displacement pumps are most suitable. These can be run at lower speeds and varying flow rates to make up for the thickness of the liquids. 
  • Finally, peristaltic pumps can handle both high as well as low viscosity liquids with relative ease. These are suited for repeatable dosing applications and can run dry without any risk of pump failure.

Other considerations for highly viscous liquids

Apart from choosing the right pump types for the right levels of viscosity, you must also be mindful of the ancillary setup such as suction and piping. For highly viscous liquids, make sure there is no restriction on the suction end. Also, for such liquids, the pipework size must be larger to compensate for the friction loss or extra drag.

If you’re still not sure which pump is best suited for your liquid type, we are here to help you out. Feel free to speak to our experts by calling on 022 43436655 or emailing us at marketing@vemc.co.in. VEMC is the leading Kirloskar pump dealer based in Mumbai with over 72 years of rich industry experience in supplying and installing pumps, valves, fire panels and other high-standard electromechanical equipment.

Selecting the Right Dryer to Remove Moisture from Compressed Air

by vemcoblogs -

Moisture in compressed air could be problematic especially if you’re using it for food processing, spray painting or electronics. Moist air can cause growth of microbes, rusting of pneumatic tools or damage to circuits. To remove this moisture, it is necessary to use an air dryer in your compressor. But you must know which air dryer suits your needs best. We at VEMC are the top ELGi air compressor dealers in Mumbai and in this blog, we tell you how to select the right air dryer for your compressor.

Types of compressed air dryers

Let us first look at the top 3 compressed air dryers and their working mechanism.

  1. Refrigerated dryers: These are the most commonly used air dryers and these operate by using an air-to-air heat exchanger and air-to-refrigerant heat exchanger. These remove moisture from the air through condensation.
  1. Desiccant dryers: Desiccant dryers use adsorbent material such as silica, activated charcoal, calcium chloride, calcium sulphate or zeolites to remove moisture from the compressed air.
  2. Membrane dryers: These dryers use a membrane to remove moisture from the air. The membrane is usually made of polyamides or polyurethane. The compressed air is passed through the membrane which has tiny pores that allow air to pass through but retain the moisture.

Factors to consider when choosing a dryer

A number of factors go into consideration when deciding upon which air dryer to choose for your operations. These are:

  1. Moisture removal capacity: First of all, find out how capable the air dryer is to remove the moisture from the compressed air. This is after all your main concern and should get the highest level of importance.
  1. Pressure dew point: This represents the temperature to which compressed air can be cooled without condensation. A good air dryer brings down the pressure dew point so that the moisture is turned into liquid and can then be removed with ease.
  2. Energy consumption: What amount of energy is your air dryer consuming is another factor you need to watch out for. This is especially true as electricity prices are rising every passing year, and most businesses aim to optimise their energy resources to be reduce their carbon footprint.

Impact of compressed air quality on downstream equipment and processes

When operating in an industrial setting, it is not just necessary to have compressed air, but the quality of the air also matters significantly. Compressed air loaded with moisture can cause rusting and early wear and tear of equipment including the compressor itself. Likewise, if you’re operating in sensitive industries like pharmaceuticals or food processing, moist air can hasten the growth of microbes in the product leading to spoilage.

For more on which air dryer will meet your needs the best, feel free to get in touch with our experts by calling on 022 43436655 or emailing us at marketing@vemc.co.in. We at VEMC are the leading dealers of ELGi reciprocating compressors and oil lubricated screw compressors.

How to Read a Water Pump Curve

by vemcoblogs -

In its most basic form, a pump curve displays two things: Flow and Pressure. However, depending upon its sophistication, it can also show information like efficiency, power etc. Reading a pump curve correctly helps you discern whether the pump is suitable for your application. VEMC is one of the leading water pump dealers in Mumbai, and in this blog, we teach you to read a water pump curve.

How to read the pump curve

As mentioned above, a water pump curve shows the relationship between flow rate and pressure. Usually, the flow rate is shown on the horizontal axis and pressure on the vertical axis. So the curve displays the flow rate at a certain pressure or conversely the pressure of water at a certain flow rate. It is presumed that the water pump curve has been plotted for water.

Let’s take the adjacent graph for illustration. As you can see, the pump produces no flow at 41 meters of head and a maximum flow of 2100 litres per minute at 23 meters. This is because a pump operates under a number of influences such as speed and frequency of the motor which affect its flow and pressure. The speed of the motor for instance, directly impacts the flow rate and pressure.

Selecting the right pump based on requirements and operating point

A system curve is another graph to watch out for. It plots points between resistance of a system (head to be overcome by the pump) and flow rates. The system curve depends on factors such as height, diameter or length of piping, fitting type and number etc. The suitability of a pump is determined by how well the pump and the system curves match. The pump operating point is where the system curve crosses the pump curve on superimposition. 

Limitations of pump curves

While pump curves are extremely useful tools to understand the relationship between your pumps’ flow rate and pressure, and also to determine the right pump for the right task, they do have certain shortcomings as well.

A pump curve does not explain the relationship between operating point and equipment reliability which experts consider highly important. This relationship makes a huge difference in terms of pump longevity, and cost of repairs and replacement. 

Likewise, the Best Efficiency Point (BEP) indicates the point or area with highest efficiency for a given impeller diameter. In an ideal world, pumps would never operate outside of a BEP. However, in reality, factors like system upsets and fluctuating demand can make the BEP to shift. This can cause cavitation, rise of temperature, or wear and tear of seals and bearings.

For more on how to use tools like the water pump curve to make the right pumping decisions, feel free to speak to our experts by calling us at 022 43436655 or emailing us at marketing@vemc.co.in. We are the top Kirloskar pump distributor based in Mumbai with decades of rich experience and unparalleled expertise in pumping. 

The Role of Solar Charge Controllers in Protecting Batteries and Optimizing System Performance

by vemcoblogs -

If you are a solar PV system owner, you must be aware of the critical accessories that are necessary for the health of your system. One such equipment is a solar charge controller which regulates the charging and discharging of your batteries and also controls the power output. VEMC is the leading solar energy company based in Mumbai and in this blog, we tell you about the role that a solar charge controller plays in protecting and enhancing the performance of your solar power system.

Functions of solar charge controllers

  • Overcharge protection: 

For starters, a solar charge controller protects your batteries from overcharging. As soon as the voltage exceeds the protection voltage, the battery is automatically disconnected. 

  • Deep discharge prevention: 

Converse to overcharge protection, solar charge controllers also prevent deep discharge of your batteries. When the voltage of the battery falls below the over-protection voltage, the solar charge controller turns off the battery output to prevent deep discharge, only to restore the power supply when the battery is recharged.

  • Battery health monitoring: 

A solar charge controller is connected to the same battery terminals and can therefore keep track of the voltage to determine the state of the charge. By constantly monitoring the voltage of the battery, a solar charge controller keeps up-to-date about its health

Types of charge controllers and their suitability

Lets now talk about the two main types of solar charge controllers and the scenarios they best fit into.

  • Pulse Width Modulation (PWM) controllers: 

These are traditional solar charge controllers which operate by connecting directly from the solar array to the battery bank. These controllers are smaller and are suitable only to operate at battery voltage. These must be used with arrays matched with battery voltage.

  • Maximum Power Point Tracking (MPPT) controllers: 

These, on the other hand, are more advanced as compared to the PWM controllers and operate at maximum power voltage. As a result, the output produced is maximized which is great in cold conditions when the voltage of the solar array is much higher than the battery voltage.

Using proper settings for maximum energy harvest and battery lifespan

The right charge controller settings can bring rich dividends when it comes to power output as well as the lifespan of your battery. Different types of batteries work well with different settings. Some of the most important settings that need proper configuration for best results are:

  1. Battery floating charging voltage
  2. Battery over-discharging protection voltage
  3. Battery over-charging protection voltage
  4. Charge controller capacity
  5. Maximum charging current
  6. System voltage

If you’re a solar panel owner, you must make sure you have a quality solar charge controller in place to have maximum harvest and also prolong the working life of your batteries. For more information

on solar charge controllers, feel free to call us on 022 43436655 or email us at marketing@vemc.co.in. We are the leading solar power company based in Mumbai.

Dewatering in Construction

by vemcoblogs -
Kirloskar water pump dealer (1)

Excavation is a huge part of construction and water logging on the sites is a very common problem. To ensure smooth progress of the project, it is necessary that you manage the groundwater well. However, a number of different dewatering techniques are used, each suitable for a certain set of conditions and project specifications. VEMC is the leading Kirloskar water pump dealer in Mumbai, and in this blog, we tell you all you need to know about dewatering in construction.

Types of dewatering methods

  1. Subsurface drainage: 

This is a drainage method which helps remove water that has percolated into the subgrade. It is used in areas that have a very high water table or receive incredibly heavy rainfall. Subsurface drainage typically has a permeable base to remove water rapidly, a pipe collector system to convey the liquid away, and a filter layer to prevent the clogging of drainage.

  1. Sump pumps: 

This is one of the simplest and most cost-effective methods of dewatering. It involves digging pits in the drainage area to collect water which is then removed by using pumps.

  1. Wellpoint systems: 

A number of small wellpoints are installed around a site. These are connected with a central header pipe which has a vacuum function. Wellpoint systems are great for lowering the groundwater levels and facilitating construction work by creating a dry area.

Selection criteria for dewatering methods based on project specifics

The working conditions and project demands can vary from one construction site to another. The choice for dewatering methods must be made accordingly. For instance:

  • In conditions where there’s heavy rainfall, high water table or deep permeable soils, subsurface drainage can be the best option. It is also useful to drain heavy and poorly drained soils, or those that might have an impending layer at some depth, say clay.
  • In case of construction sites with shallow excavations and low-permeability, sump pumping can be the most feasible and cost effective method to remove water. However, it carries with it the risks of sudden collapse or erosion. 
  • In case of shallow excavations or fine-grained soils with low permeability, wellpoint systems can be the method of choice. It is quite cost effective and also easy to install. 

Environmental and safety concerns

Dewatering involves significant environmental and safety risks. For example, uncontrolled dewatering can deplete the groundwater of an area. Likewise, it can also cause increased sediment levels in waterways. In cases when seasonal conditions add more surface water to work sites, unmonitored dewatering can have an accidental impact on the environment.

Dewatering could be a dicey activity. To make sure environmental and safety risks are averted, builders must follow proper guidelines. For more on which dewatering method to choose for your construction site, and how to ensure environmental and personal safety, feel free to call us on 022 43436655 or email us at marketing@vemc.co.in. VEMC is one of the top-notch Kirloskar pump dealers in Mumbai with a rich industry experience of over 70 years. 

Understanding Air Compressor Discharge Pressure

by vemcoblogs -

If you’re an air compressor owner, you must be acquainted with some of the basics of your equipment. Discharge pressure is one of the most relevant notions that significantly impacts how your air compressor performs. VEMC is one of the leading air compressor dealers in Mumbai, and in this blog, we take you through all you need to know about discharge pressure.

Definition and importance of discharge pressure

Discharge pressure simply refers to the air pressure at the output end, that is, the discharge flange of your compressor. Maintaining optimum discharge pressure is necessary to ensure maximum levels of efficiency and productivity. However, higher than required discharge pressure could cause wastage of energy as well as damage to the system. This is because of the rise in temperature leading to metal fatigue of valves and thermal stress on lubricants.

Factors affecting discharge pressure

Discharge pressure of an air compressor is quite dynamic and a number of factors affect it. Some of these are:

  1. Size and speed of the condenser fan
  2. Size of the discharge line
  3. Condition of the condenser coil
  4. Leakage of air
  5. Cooling effect by oil, water , etc.
  6. Rotational speed in case of a screw compressor
  7. Voltage and frequency of the power grid
  8. Suction temperature and pressure

Impact of discharge pressure on system performance and efficiency

For starters, discharge pressure directly impacts the air flow of a compressor, and the simple Boyle’s Law equation can substantiate this. 

P1 x V1 = P2 x V2

However, compressed air isn’t free and with every unit rise in discharge pressure, there is a proportionate rise in energy consumption as well. In fact, it is widely believed that for every 2-psi increase in pressure, the energy consumption increases by 1 percent. So while increase in discharge pressure does boost your performance significantly, it also reduces the efficiency due to overconsumption of energy. Besides, higher levels of discharge pressure can also cause leaks in the system and reduce the distribution of the compressed air, while reducing the lifespan of the air compressor in the long run.

Optimal discharge pressure settings for different applications

It is quite clear that operating an air compressor and deciding the right discharge pressure requires  some amount of nuance. There is no on-size-fits-all for every application that you use your compressor for. Industrial applications usually require a pressure of 100-200 psi while if you’re using the compressor for domestic use, anything between 90-150 psi should be enough. Pneumatic tools like nail guns require a pressure of 90-100 psi while sandblasters and spray painters would typically need 120-150 psi.

Discharge pressure seems to be a straightforward notion. However, to ensure you get the maximum out of your air compressor without wasting energy, you must operate it at the right levels of discharge pressure. For more on air compressors, feel free to call us at 022 43436655 or email us at marketing@vemc.co.in. VEMC is the leading compressor dealer in Mumbai.

The Future of AI and Blockchain in Solar O&M

by vemcoblogs -

Solar energy is fast becoming one of the most favored sources of renewable energy across the world. But one of the most exciting aspects of solar PV systems is their ability to blend seamlessly with the latest technological developments across the board. AI and Blockchain are two new technologies that have a promising potential to drastically improve operations and maintenance in the solar energy space. VEMC is a leading solar energy company in Mumbai, and in this blog, we tell you all you need to know about the role of these technologies in solar energy.

Applications of AI in solar O&M

  • Predictive maintenance: 

An immense amount of thought, effort and finances go into maintaining solar power systems. But with the ability of processing past data through AI, you can zero in on equipment that need your immediate attention to prevent sudden breakdowns. This can  help reduce costs and avoid downtime.

  • Anomaly detection: 

With AI, anomalies can be detected with precision and in a timely manner. These include hotspots, potential induced defects (PID) or problems with diodes, strings or junction boxes.

  • Performance optimisation: 

AI can perform an enormous role in boosting the performance of your solar panels. Specialised algorithms can accurately perform data analysis to determine the optimal use of solar power. AI can also be used to monitor modules and micro-inverters for quick redressal of any anomalies. 

  • Automation: 

By analysing data from solar power systems, AI can help in automating the decision-making process and ensuring highest levels of efficiency and performance. 

Blockchain for secure data management and traceability

  • Asset tracking: 

As the solar energy industry is growing rapidly every passing year, its supply chain is becoming ever more complex creating challenges for traceability. With blockchain technology however, granular data can be collected at asset level and can be recorded on-chain.

  • Performance logging: 

With blockchain-based platforms, users can gain real-time insights for optimum performance of their on-grid solar system. The distributed ledger system helps monitor and log data exchange between panels, storage systems and the grid.

  • Warranty verification: 

With its decentralised and distributed ledger, blockchain technology can be used in keeping immutable records of warranty claims and records of equipment. These records cannot be tampered with and can thus offer an authentic and transparent warranty management mechanism.

Benefits of AI and Blockchain integration

  • Improved efficiency: 

One of the most outstanding benefits of both AI and blockchain technologies is more efficient operation of solar power systems.

  • Reduced costs: 

By streamlining the operations, AI and blockchain help in reducing human effort, cost of energy and material.

  • Enhanced transparency: 

These technologies offer highest levels of transparency in terms of authentic data records and documentation. Blockchain especially is a highly innovative way to capture and communicate important information across the solar power system.

For more on how technologies like AI and Blockchain can transform your conventional solar power system, feel free to call us on 022 43436655 or email us at marketing@vemc.co.in. We are the industry leaders when it comes to solar power installation.

Air Compressor Dryers: Why They are Essential and How to Choose One

by vemcoblogs -

Air compressors find use in a number of industrial applications such as spray painting, packaging and drilling. But a common issue in air compressors is the accumulation of moisture which could be problematic for a number of reasons. This issue can be dealt with using the right kind of air dryer. VEMC is one of the leading air compressor dealers in Mumbai and in this blog, we tell you everything you need to know about air compressor dryers.

Why moisture in air compressors is problematic

Condensation of humidity inside an air compressor is a common issue and can appear in pipes, filters and other machinery. This can cause malfunction and breakdown of the equipment using the compressed air. Over the longer time horizon, it can be a cause for corrosion in the metallic parts. It is especially worrying if you are using the air compressor in packaging as the moisture can lead to the growth of moulds and cause spoilage of packaged items. To get rid of the moisture, air compressor dryers are essential accessories for your equipment.

Types of air dryers

Air compressors dryers are available in a number of variants each suited for a certain set of operations:

  1. Refrigerated air dryers: 

These air dryers condense the moisture in the air to very low temperatures, thus removing it and allowing the compressed air to proceed ahead to the attached tool.  These are available in cycling and non-cycling variants. The former supply variable cooling to match the demand while the latter supply constant cooling irrespective of the demand. Refrigerated air dryers are best suited for manufacturing and service applications but not for highly sensitive ones where even a little moisture can be problematic.

  1. Desiccant air dryers: 

These operate by desiccating the air using hygroscopic materials like silica gel or activated alumina. A twin-tower drying system is typically used both chambers of which contain desiccant materials. These air dryers are best suited for moisture-sensitive industrial applications such as healthcare, packaging, fabric manufacturing , etc.

  1. Membrane air dryers: 

These use specialised membranes to filter moisture out of the compressed air. The microtubules present in the membrane retain water while the dried air is allowed to pass through to the required application. These types of air dryers are best suited for applications such as food processing, dehumidification and gas separation. 

Choosing the right air dryer

Your choice of air dryer depends upon your specific needs as listed above and also your budget. For standardised functions, say in manufacturing, cost-effective air compressors like non-cyclic refrigerators are good enough. However, if your business applications are extremely moisture-sensitive, it is best to use slightly more expensive but highly effective desiccant air dryers.
For more information or guidance on the right air compressor dryers, feel free to call us on  022 43436655 or email us at marketing@vemc.co.in. VEMC is one of the top-notch air compressor dealers in Mumbai, with vast industry experience and cutting-edge expertise.

The ABCs of Air Compressor Accessories

by vemcoblogs -

Air compressors are the go-to equipment to generate power for a number of tasks in industrial as well as domestic settings. These include spray painting, drilling, cleaning etc. However, air compressors can offer optimum performance only when the accessories are functioning well. VEMC is the leading air compressor supplier in Mumbai, and in this blog, we acquaint you with the ABCs of air compressor accessories.

Types of accessories

  1. Filters: 

Air compressor filters are important to remove dust and debris and push out only clean compressed air. Their role is even more important in case you are using your air compressor in sensitive work environments like food processing. Rotary screw air compressors have three filters: an oil filter, an inlet filter and air/oil separator. While on an average, filters must be replaced every 2000 hours of service, they may need even more frequent replacement in dirtier conditions. Replacement helps prevent the oil from becoming contaminated and also the premature failure of the parts.

  1. Regulators: 

Air compressor regulators help control the air pressure in a pneumatic system. This ensures that the air compressor operates safely and at optimum levels of efficiency. 

  • General purpose regulators: These are best suited for use in industrial settings and operate above the atmospheric pressure.
  • High pressure regulators: These have an inlet pressure of 1000 psi.
  • Dual stage regulators: In these regulators, the liquid flows through a succession of chambers to deliver constant pressure.
  • Point-of-use regulators: These regulators are attached at or near a tool such as a pneumatic drill.

3. Lubricators: 

Air compressor lubricators help reduce friction between parts of an air compressor and dissipate the extra heat generated. An air compressor lubrication system comprises of a crankcase sump, strainer, filter and cylinder lubricator. The lubricating oil is contained in the compressor crankcase. A preset mark on the crankcase indicates the level of lubricating oil that must be present in it and thus helps at the time of replenishment. 

4. Valves: 

Air compressor valves control the in and out-flow of air or oil in a compressor.

  • Intake valve: As the name suggests, an intake valve enables the air to enter the compressor. This air is then directed to the compressor head where it is compressed.
  • Minimum pressure valve: It is located at the outlet above the oil-gas separator. It acts as a buffer to control the flow rate of the gas and prevent damage due to high-speed airflow.
  • Safety valve: This is important for the safety of the air compressor as it discharges some gas as soon as the pressure exceeds a certain level.

Choosing the right accessories

If you are looking for accessories for your air compressor, make sure you only choose the original ones. Only original accessories can guarantee optimum performance and a long service life. For more on air compressor accessories, get in touch with VEMC by calling on 022 43436655 or emailing us at marketing@vemc.co.in. We are the leading air compressor dealers in Mumbai.

Comparing the Different Types of HVAC Pumping Systems and their Suitability for Various Applications

by vemcoblogs -

For starters, HVAC stands of Heating, Ventilation and Air Conditioning. HVAC systems help in maintaining and moderating indoors environment, that is, humidity, air flow, temperature and air filtering. At the backend of the operations of HVAC systems, pumps play a critical role. VEMC is one of the leading water pump dealers based in Mumbai, and in this blog we compare the different HVAC pumping systems for your use.

Types and features of HVAC pumps

In systems which have a significant storage capacity, constant speed pumps are a better choice. The right kind of constant speed pump can in fact run at high efficiency as shown in the graph below:

2. Variable-speed pumps: 

These pumps are simply equipped with a Variable Speed Drive (VSD) to produce variable speeds. In case you are pumping water across flat ground, most of the energy is consumed in overcoming friction. Such a system requires a variable speed pump.

3. Single-stage pump: 

These pumps have one impeller that rotates on a shaft within a pump casing. It produces flow on being driven by a motor and has one of the simplest designs. They are quite useful in HVAC systems as they are close-coupled which means that the pump and the motor are separate units. These pumps are less sensitive to impurities in the liquid.

4. Multi-stage pumps: 

These pumps have multiple impellers and diffusers and can therefore pump liquid at much higher pressure than single-stage pumps depending on the number of stages and speed. Each stage is interconnected and feeds pressure into the next one thus cumulating the overall pressure significantly. These pumps can be installed both horizontally as well as vertically and can thus be adjusted well into your HVAC systems.

Choosing pumps for your HVAC system

The most common pump used in HVAC systems is the centrifugal pump available in circulator, single-stage, multi-stage, end-suction and vertical in-line variants. Which pump you choose for your HVAC system depends upon the unique needs of your building such as capacity, pressure required, space available , etc. 

For example, circulator pumps are used in systems which require low pressure and low capacity. These are typically under 150 gpm. End-suction pumps on the other hand are great for systems with capacities of up to 4000 gpm and head of 150 feet. Likewise, if your building has space constraints, the best option for you is the close-coupled pump that occupies less floor space. In case you require a lot of pressure, multistage pumps which build pressure incrementally with each stage are perfectly suited for your operations.

If you are looking for guidance for selecting the perfect pump for the HVAC systems, your search is over. Just get in touch with our experts by calling on 022 43436655 or emailing us at marketing@vemc.co.in. We are the leading water pump dealers based in Mumbai, with over 70 years of rich industry experience in pumping across a diverse client base.

The Intersection of IoT and Pump Monitoring: Kirlosmart Technology

by vemcoblogs -

Pump monitoring has in the past required regular visits, checks and inspections by technicians. This has naturally involved lot of training and labour costs to begin with. Besides, the precision of diagnosing the faults and issues is quite limited. With the advent of the Internet of Things (IoT) technology however, pump monitoring has been transformed overnight. VEMC is one of the leading Kirloskar pump distributors based in Mumbai, and in this blog, we tell you how IoT-based Kirlosmart has revolutionised pump monitoring for users at home, office and in factories.

Special features of Kirlosmart

Some outstanding features of Kirlosmart have made it the product of choice for consumers across the board:

  • Real-time data visualisation: 

Kirlosmart comes with an online app and web portal that displays all the pump parameters such as head, voltage, vibration etc. on a user’s dashboard. All the data is received from the pump sensors in real-time and enables the owners to respond to exigencies quickly.

  • Predictive maintenance alerts: 

Kirlosmart acts as an early warning system of sorts. As soon as some parameters are not within the normal range, it raises a predictive maintenance alert. 

  • Remote control: 

With Kirlosmart in place, users no longer have to visit the pump site physically but can control their pumps remotely from the comfort of their home. This reduces the costs of repeatedly visiting the pump site including the labour and training costs.

  • Scalability: 

Kirlosmart is a new technology that has vast potential in pump monitoring and is highly scalable. This means easy monitoring even in bigger organisations.

  • Ease-of-use: 

Kirlosmart has a user-friendly UX/UI which is very navigable, interactive and intuitive. All the information is readily available in the form of graphs and tables. This means no dedicated labour is required to monitor the pump regularly and everything is available at the user’s fingertips.

How Kirlosmart has transformed monitoring

1. Improves pump performance: 

Kirlosmart relies on a constant stream of data flowing in from the pump sensors. The data is then analysed using the software’s data analysis algorithm which presents it in the form of tables and graphs on a user’s smartphone app or laptop. With accurate and timely information at their fingertips, they can take the right measures to improve their pump performance.

2. Predicts maintenance needs: 

As soon as any parameter appears to be out of range, say too much vibration, it is a signal that the pump needs maintenance.

3. Prevents downtime: 

With early fault detection and timely intervention, sudden breakdown of the pumps is prevented. This saves a lot of repair and replacement costs and also the business costs associated with the breakdown.

Kirlosmart is a great leap towards blending IoT technology with pump monitoring. For more information on how Kirlosmart can help you transform your pumping experience, feel free to call us on 022 43436655 or email us at marketing@vemc.co.in. We are one of the top-notch Kirloskar pump distributors based in Mumbai.

The Importance of Solar Energy in Reducing Maintenance Cost of a Building

by vemcoblogs -

Solar energy is one of the most preferred alternative sources of energy. It is especially gaining popularity among Indian users given the abundant sunlight that the tropical country receives coupled with the facility of net metering that allows owners to reduce their electricity bills significantly. But solar energy has a more indirect but significant benefit for your building as well. VEMC is the leading solar energy company based in Mumbai, and in this blog, we tell you how your rooftop solar system can help reduce the maintenance cost of your building.

Reducing wear and tear

Solar panels are installed with either ballasted racking system or roof clamp system, neither of which require you to drill holes in your roof. Rather than damaging your roof, solar panels help protect it by offering an additional protective layer on top of it. They protect the roof from the harsh rays of the sun as well as inclement weather conditions like hail, snow and heavy rains. The overall effect of rooftop solar panels is reduced wear and tear of your roof.

Minimised dependance on traditional energy sources

Energy amounts to a huge cost in maintaining any residential, industrial or office building. Rooftop solar systems help reduce the dependence of your building on traditional sources of electricity. Besides, on-grid solar power systems equipped with net metering facility also help reduce your electricity bills by exporting excessive electricity to the grid.

Simpler maintenance needs

Maintaining your solar panels is quite simple and cost effective. For starters, solar panels sold by VEMC are made of durable material with an average life-span of around 25 years. But the maintenance is quite easy as there are no moving parts and these panels rarely encounter any technical problems being so simple in design. All that is needed is some occasional sprinkling of water and a quick wipe to keep the dust and debris off the panels and enable them to function at peak productivity levels.

Case in Point: Godrej Coliseum

Godrej Coliseum is a mammoth commercial complex located in Sion, Mumbai and provides office space to shipping, pharmaceutical, BPO, auto and telecom businesses. It is spread across an area of around 83 million square feet and offers amenities like escalators, car-parking, fire-fighting systems and advanced security. To power such an enormous commercial facility, VEMC installed mono-crystalline modules and Delta inverters with a total capacity of  75 kW. In coordination with the DISCOM, the facility of net metering was also installed. Post-installation feedback revealed that the client saved upto 1.2 lakh unit of electricity annually which amounted to Rs. 12 lakh.

Rooftop solar panels are a blessing when it comes to reducing the energy and maintenance costs of your building. For more on how our rooftop solar panel systems can help you reduce your costs, feel free to call us on 022 43436655 or email us at marketing@vemc.co.in. We at VEMC are the leading solar energy company based in Mumbai.

The Significance of Corrocoating in Industrial Applications

by vemcoblogs -

Corrosion is one of the most problematic issues with industrial equipment like pumps, valves, pipes and tanks. But corrocoating is one technique that can help you combat it effectively. Corrocoating has significant use in chemical and wastewater treatment plants as corrosion can drastically reduce the working life of equipment as they are exposed to moisture. VEMC is one of the leading industrial water pump suppliers in Mumbai, and in collaboration with Kirloskar Corrocoat, undertakes turnkey projects for coating a wide range of electromechanical equipment.

Types of corrosion

Here are the main types of corrosion found in electromechanical equipment.

  1. Uniform corrosion: This type of corrosion occurs over the entire surface of a metal. Although it is one of the most benign forms, nevertheless it requires prevention as well. 
  1. Pitting corrosion: Being hard to predict, detect and characterise, this type of corrosion can be highly destructive. As the name suggests, it leads to the formation of vertical holes or cavities on the surface of a metal. This type of corrosion can be caused due to local break or damage in protective coating. It can cause sudden failure of equipment despite relatively low loss of metal.
  1. Crevice corrosion: It is also a localised form of corrosion usually resulting from stagnant microenvironment with a difference in concentration of ions between two areas of a metal. It affects shielded areas like under washers, gaskets, bolt heads , etc., with limited oxygen supply.
  1. Inter-granular corrosion: It is caused by impurities present at the grain boundaries and occurs along or adjacent to these grains. While the bulk of the metal remains intact, it affects its mechanical properties.
  1. Galvanic corrosion: It is the degradation of metals near the joint which occurs when two electrochemically different metals are in contact in an electrolytic environment. 

Benefits of corrocoating

  1. Increased lifespan: With corrocoating, users can expect a longer lifespan for their electromechanical equipment which reduces the need to replace or repair them frequently. This also reduces the waste that entails due to replacement of old equipment and is hence in line with the concept of circular economy.
  1. Cost savings: By avoiding frequent breakdowns due to corrosion, users can save significant amounts of repair and maintenance costs.
  1. Reduced downtime: Corrosion can impact some of the most critical pieces of equipment in your business facility leading to sudden and unforeseen downtime. This can be successfully avoided with protective corrocoating.

Case in point: MCGM Complex Pump Corrocoating Project

VEMC has undertaken a number of large-scale corrocoating projects in the past. In 2015, we corrocoated the crucial Municipal Corporation of Greater Mumbai (MCGM) Complex Pump at Bhandup. The pump was affected by heavy pitting corrosion inside the casings. It was taken to KBLs Hydraulic Research Centre where it was blasted, coated and inspected. The corrocoating didn’t just ensure the protection of the pump from corrosion but also showed instant results in terms of better efficiency, input power and head.

Solar Success Stories: 3 Inspiring Businesses Benefiting from Solar Power

by vemcoblogs -

VEMC has been at the forefront of solar transformation and our past projects with a strong client base is testimony to it. In Mumbai and its environs itself, we have multiple solar installations on an enormous scale. Three of the most outstanding ones are MCGM Office Worli, Godrej city Panvel and Piramal Revanta Mulund West. In this blog, we give you a peak into how and why these projects became an inspiring success.

MCGM Office at Worli

The Municipal Corporation of Greater Mumbai (MCGM) Engineering Hub in Worli is the nerve centre for all engineering and infrastructure-related work in the city. To power this hive of activity, the MCGM approached VEMC for its reliable and reputed solar installation. It turned out to be a great success as it helped the MCGM shift its reliance substantially from the conventional source of electricity to solar power. This did not just reduce the building’s energy costs, but also contributed to its significantly lower carbon footprint. The project is perfectly in line with MCGM’s vision for a sustainable future and shifting to green renewable energy in their own facility is the first step towards inspiring a city-wide transformation.

Godrej City at Panvel

One of the prime real estate projects in Navi Mumbai, the Godrej City is the epitome of luxury living. The project has more than three towers and 568 units spread across an area of about 150 acres. The energy consumption naturally is enormous and is estimated at around 260000 kWh per year. VEMC was approached to meet this challenge of powering this massive facility.

We installed a 200 kWp on-grid solar power system along with net-metering facility, which meant that excess electricity produced by the panels is exported to the grid and offset against the electricity consumed. The project didn’t just save energy costs but also reduced its carbon footprint by an estimated 184 metric tonnes per year. To put things into perspective, this is equivalent to carbon sequestering by 3047 tree seedlings grown for 10 years. Taking the maintenance costs into account, the project payback period was only around 3 years.

Piramal Revanta at Mulund West

The Piramal Revanta project is a high-end residential real estate project which 2 and 3 BHK apartments and a vast range of amenities. These include an indoor game zone, gymnasium, mini theatre, multipurpose game court, cafe lounge and many more! With VEMC solar installation, this project didn’t just optimally meet its energy needs but has also reduced its energy costs and carbon footprint substantially, inspiring change for more sustainable residential townships of the future.
To know how VEMC can transform your business facilities and meet your growing energy needs sustainably, get in touch with our team by calling on 022 43436655 or emailing us at marketing@vemc.co.in. With a proven track record and a flurry of successful project under our belt, we are committed to inspiring change for a greener, cleaner and sustainable tomorrow!

Pump Energy Audit: How to Save Big on Energy Consumption

by vemcoblogs -

Energy prices are skyrocketing everywhere and if you are a pump owner, you would appreciate how important it is to ensure your pumps operate at optimum efficiency. Whether you’re concerned about your rising energy bills or running a sustainable business, pump energy audits help you meet your energy saving goals big time. We at VEMC are the leading water pump dealers based in Mumbai, and in this blog we tell you all you need to know about pump energy audit.

How Pump Auditing Is Done

A pump audit is a comprehensive and end-to-end assessment of a pump’s performance and energy efficiency and also an exercise to unearth any issues or areas for improvement. The major steps in pump auditing are
System design evaluation: Ensuring the design of the pump satisfies its unique needs.

  1. Performance analysis: Parameters like flow rate, pressure, power consumption, motor efficiency , etc., are measured.
  2. Assessing energy efficiency: Energy consumption patterns are analysed using tools like Variable Speed Drives (VSDs) and other control mechanisms.
  3. Maintenance and reliability review: Lubrication, alignment, vibration analysis and seal integrity are evaluated to test pump maintenance and reliability.
  4. System control and automation: Sequencing, control methods and technology are analysed to detect potential problems.

Factors That Can Waste Energy

One of the main aims of pump auditing is to ensure that your pumps do not consume too much energy. The main factors that are known to waste energy are:

  1. Inefficient pumps: If your pump is old, worn out and has outdated design or technology, it is highly likely that it is inefficient and consuming extra energy.
  2. Improper sizing: Make sure your pump size is suited for the task at hand. If the pumps are too big, it can lead to wastage of energy.
  3. Control issues: Insufficient control methods of the pumps is also one of the leading causes for wastage of energy. Try and test a number of different control methods like VSDs to make sure no energy is wasted.

Some Practical Tips For Optimising Pump Operation

  1. Avoid oversizing your pumps: While slight oversizing of pumps may be good for meeting future uncertainties, it is best to use a pump with capacity roughly equal to the demand of the task.
  1. Trimming the impeller: If your pump is oversized, it is a good practice to trim your impeller to reduce the pressure and flow produced.
  1. Using VFDs: Variable Frequency Drives help automate pump operations like flow and head to match the demand of the application.
  1. Parallel pumping system: Installing a second, smaller pump to match average demand of the application can be a good way to relieve the larger pump of a significant amount of burden.
  1. Limit pipework: Limiting the pipework in the system is a good way to reduce frictional loss and hence save energy. Make sure pipe diameter, length, layout , etc., are also given due consideration.

To know more about pump energy audits, feel free to call us on 022 43436655 or email us at marketing@vemc.co.in. We at VEMC are the leading water pump dealers based in Mumbai, with over 70 years of industry experience.

8 Common Mistakes to Avoid when Installing Solar Projects

by vemcoblogs -

Solar energy is fast becoming one of the most preferred alternative sources of energy. This is especially true of a tropical country like India which receives plentiful sunlight in most parts throughout the year. However, we are still in the early days of our solar journey and a lot of customers tend to make installation mistakes which can later prove costly. VEMC is a leading solar energy company based in Mumbai, and in this blog we tell you about the 8 common mistakes that you must avoid when installing your rooftop solar panels.

1. Understanding energy needs

The capacity of rooftop solar panel must be determined by the energy needs of your home or facility. However, consumers often make the mistake of considering only their current needs. Since solar power system is a long-term investment, you must plan ahead and also build capacity as per your projected needs in the future.

2. System sizing

To meet the energy demands of your facility, it is necessary that your solar power system is suitably sized. You must avoid both under as well as over-sizing of your solar power system. The former can lead to shortages of energy while the latter causes wastage.

3. Placement

Make sure your panels are properly positioned to face the sun maximum possible time for optimum productivity. This is where the skill, expertise and experience of your installer comes into play.

4. Financing your solar project

With a number of government incentives and financing options available, you do not need to finance your solar project all by yourself. All you need is some market research to choose the most cost effective financing option.

5. Obtaining permits

You must obtain a permit from your local power distribution company (DISCOM) before installing a solar power system. Additionally, look for other local body regulations which are mandatory in your locality, town or city before installing the panels.

6. Factoring in maintenance costs

Your solar power system doesn’t just have initial investment costs but also long-term or lifetime costs which customers often overlook when deciding to invest in one. Make sure you speak to an expert and factor in the maintenance costs of your solar power system before making the investment.

7. Avoid scams

With a lot of excitement about solar power systems in the air, customers may be tempted to invest in them by unscrupulous sellers claiming that these systems are money-minting machines. While on-grid solar panels do help reduce your bills through net metering significantly, they are not likely to make you rich overnight.

8. Choose the right installer

Finally, when it comes to installing solar power systems, you must only trust a reliable and reputed seller that has plenty of experience and cutting-edge expertise in the field.

One of the leading solar panel consultants and installers is VEMC, a company based in Mumbai and serving clients across industries. For more information on installing your solar power system, call us on 022 43436655 or email us at marketing@vemc.co.in.

Impact of Pump Performance Testing on Energy Consumption and Sustainability

by vemcoblogs -

Pumps play a crucial role across industries in a number of operations such as dewatering, displacing liquids, controlling the flow of fluids, mixing and blending chemicals , etc. However, their operations demand a lot of electrical energy. To make sure they keep performing at optimum levels without consuming excess energy, performance testing is necessary. VEMC is a leading Kirloskar pump authorised dealer based in Mumbai, and in this blog we talk about the impact of pump performance testing.

Benefits of pump performance testing

Pump performance testing offers a number of benefits:

  1. Identifying operational problems: 

Operational issues like misalignment can be identified from pump performance testing. These are often symptomised by excessive vibrations and noise.

  1. Determining energy efficiency: 

Drafting statistical reports help determine the efficiency of the pump. These statistics and graphs are useful in identifying energy-related issues like overconsumption of electricity.

  1. Compliance: 

Performance testing of pumps also helps ensure your pump is meeting all the important industry standards such as HI, ASME PTC and API. 

  1. Finding defects and malfunctions: 

Any defects and malfunctions can be unearthed using performance testing. It also ensures that the pump operates satisfactorily under varying conditions of temperature, vibration levels , etc.

  1. Documenting performance: 

One of the most significant benefits of pump performance testing is that performance of the pump is documented which can be of great value for future reference.

Overall, performance testing is a trusted way of reducing lifespan costs of your pumps as it helps improve their performance, reduces energy consumption and helps identify operational problems with the pumps.

How performance testing impacts sustainability

Performance testing also has a significant impact on sustainability of your pumps.

  1. It ensures that your pumps always operate on peak efficiency and offer highest performance levels while consuming least possible energy.
  2. Wear and tear, defects and malfunctions can be a source of poor performance and low efficiency of pumps. With performance testing, these issues can be unearthed and addressed.
  3. Keeping the pumps in prime working conditions also helps prolong their life-span and hence reduce excessive repair and replacement costs. This not only offers saving for the pump owners but also helps reduce waste.

Performance testing is not just valuable for pump owners but is also in line with the values of sustainability and circular economy. This is because it helps reduce energy consumption by the pump while at the same time prolonging their working life and reducing unnecessary waste of equipment and material.

If you are looking to get your pump performance testing done, get in touch with our experts by calling us on 022 43436655 or emailing us at marketing@vemc.co.in. VEMC is one of the leading Kirloskar pump authorised dealers based in Mumbai with a vast experience of 70 years in the field of pumping. Besides dealing in a wide range of pumps for use across industries, we also offer on-site Annual Maintenance Contracts and Energy Audit services to our clients.