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Posts tagged ‘Vilter Manufacturing’

Waste Heat Recovery with Industrial Heat Pumps

Industrial refrigeration systems reject a significant quantity of waste heat to the atmosphere. Heat pumps can capture this waste heat efficiently and use it to reduce the fossil fuels consumed to heat water.  Industrial heat pumps are environmentally friendly and economical, allowing end-users to make the most of their energy resources.

2011_VSSThis 4-minute video explains how industrial heat pumps benefit food and beverage processing plants.

Industrial ammonia heat pumps offer end-users a comprehensive sustainable solution by reducing energy consumption, water, waste water, CO2 emissions and operating costs. They are environmentally friendly as ammonia is a natural refrigerant with an ozone depletion potential (ODP) of zero and a global warming potential (GWP) of zero.

Industrial heat pumps provide energy conservation, by converting the heat energy removed by ammonia refrigeration systems and transforming it into beneficial heat for use in satisfying plant hot water requirements. This source of energy is renewable as the heat is naturally occurring within food products and is made available through food preservation by the process of refrigeration, a reusable energy source.

Ammonia heat pumps reduce operating costs.  Ammonia refrigeration systems absorb heat from products, processes, equipment, people, building heat gains and infiltration, and then reject it as waste heat to the atmosphere through, typically, evaporative condensers.  The majority of the heat delivered by heat pumps comes from the heat extracted from these cooling loads. An incremental amount of heat delivered by heat pumps comes from the electric energy consumed in converting the low grade waste heat into high temperature useable heat.

An additional benefit of industrial heat pumps, applied as retrofits to existing systems, is that they add condensing capacity to systems.  Industrial heat pumps divert load away from evaporative condensers, allowing existing system compressors to operate more efficiently at lower condensing pressures.  Further, reduced condenser loads correspond to conservation of water, water treatment chemicals, and waste water.

Download more information on Single Screw Ammonia Heat Pumps:

Sam Gladis
Business Director, Heat Pumps
Emerson Climate Technologies

Emerson at IIAR

Technical experts from Vilter Manufacturing LLC, a business of Emerson Climate Technologies, will be heading out to Colorado Springs this week to present the latest information about next generation ammonia heat pumps.  Vilter will also sponsor a Regulatory and Code Update Lunch during the International Institute of Ammonia Refrigeration’s (IIAR) 2013 Industrial Refrigeration Conference and Exhibition. The technical presenters from Vilter will be available before and after each presentation in booths #518-522.

Globally, the food and beverage industry’s need for energy efficiency and water savings is growing. More than 90percent of the energy consumed for refrigeration is wasted as heat rejected into the atmosphere. However, industrial heat pumps can capture that wasted heat and significantly lower a plant’s energy and water consumption. Installing heat pumps to capture waste heat from industrial processes is increasingly popular in Europe, largely because the heat they deliver far exceeds the energy they consume, greatly reducing the reliance on fossil fuels. Attendees will discover how the design and operation of food and beverage processing plants of the future will be adapted to capitalize on the benefits of industrial heat pumps.

The IIAR conference is an exceptional educational and networking forum for the industrial refrigeration industry.  We are honored to share our experiences and the knowledge we’ve acquired with our peers. More information about IIAR can be found at

Have you attended IIAR in the past? If so, we would be interested in knowing your thoughts about IIAR in general, and heat pump technology in particular, especially as it relates to utilizing ammonia as the primary refrigerant.

Sam Gladis
Business Director, Heat Pumps
Emerson Climate Technologies

Emerson at the 2013 IEEE IAS Electrical Safety Workshop

Safety is a concern for everyone.

Everywhere we go and everything we do, whether it’s in our home, at work or in our neighborhood, there is a measure of safety that has been considered, whether we realize it or not, to keep us safe.

Naturally, safety is a major topic in our industry. As we attend to our daily jobs to keep our equipment running properly, we are faced with a wide array of tasks ranging from simple repairs that require little thought to issues that need extensive troubleshooting on energized equipment that is in operation.  In the latter case, the safety burden begins with the employer providing an electrical safety program that includes personal protection equipment and ends with the employee that ultimately performs these tasks.  Our goal, when designing our Vilter Engineered Motor Starter,  is to consider the safety measures that are required per the National Fire Protection Association 70E Standard for Electrical Safety in the Workplace (NFPA 70E) to help the employer with their electrical safety requirements and especially to keep employees safer.

That is why we’re participating in the 2013 Electrical Safety Workshop organized by IAS IEEE (Industry Application Society of the Institute of Electrical and Electronics Engineers).  Not only do we want to share our ideas but we want to learn from experts across multiple disciplines to help promote and change the electrical safety culture in our country.

The white paper I wrote for this event focuses on designing safer and smarter electrical equipment in the spirit of NFPA 70E.  I will be presenting my paper at the poster presentation on March 14.  An abstract of the paper can be read here: NFPA 70E – Reducing and Eliminating Arc Flash Hazards through Electrical Equipment Design Considerations.  

We hope to see you there – be safe!

Dennis W. Doody
Vilter Manufacturing
Emerson Climate Technologies

Fuel Gas Pressure Boosting

There was a lot of talk at the recent Turbo machinery Symposium about fuel gas boosting compressors.  Fuel gas boosting compressors are now a part of most gas turbine systems.  Today’s gas turbine designs operate more efficiently and reliably, but require higher fuel gas pressures than is available from adjacent gas utility pipelines.  To complicate matters, operators must plan for fluctuations in the pipeline pressures.  Although 300 psig is adequate for older industrial gas turbines and could sometimes be reached with pipeline pressures, newer industrial turbines require 600 psig.  Aeroderivative gas turbines can handle load changes more quickly but may require supply gas pressures up to 1000 psig to operate most efficiently.  Because available gas pressures are much lower, fuel gas booster compressors are needed to raise gas supply pressure feeding the gas turbine. FGB compressors must have a large turndown range and the ability to handle gas pressure fluctuations from the pipeline while delivering constant discharge pressure. Fuel gas boosting compressors have recently been deployed in a wide variety of industrial facilities and processes including: peak power plants, oilfield power generation and landfill gas to power projects

What is your experience with fuel gas boosting compressors?  Find out more about fuel gas boosting at

Mark McCormick
Director, Gas Compression
Emerson Climate Technologies

Electrical Safety in the Workplace

Electricity…Electricity…Electricity…we cannot live without it!  Electricity is so embedded into the fabric of our lives that we often take it for granted without notice of its significance.  Before you go to bed tonight walk through your living quarters and take notice of the green, red and orange LEDs peering at you from dark corners – electricity busy at work while we sleep.

In the refrigeration world, our wonderful compressors are not very useful unless they have a reliable and safe supply of electricity.  For the most part, we rely on our local electrical utility to provide us with a reliable, clean and secure electricity supply.  As far as safety, in the United States, we have codes, standards and certifications such as National Fire Protection Association 70 National Electric Code, National Fire Protection Association 70E Standard for Electrical Safety in the Workplace, Occupational Safety and Health Act and Underwriters Laboratories that protect us from the potential dangers of electricity such as shock, fire and explosions from an arc flash event.

While it is true that energized components and conductors are usually safely mounted in enclosures, there are times when those of us who work in the industrial and commercial refrigeration industry need to interact with, and actually touch energized components with meters and tools when trying to troubleshoot or repair equipment. This can be a very dangerous task and is a primary concern of ours when designing and building electrical equipment.

So, we would like to hear from you – what are you doing in the workplace to safely handle electrical hazards?  Do you understand NFPA 70E?  Are you complying with NFPA 70E?

Vilter Manufacturing will have a booth at the upcoming Refrigeration Engineers and Technicians Association 2012 National Conference in San Antonio, Texas from November 5-9.  We will have our NFPA 70E inspired motor starter with us and I will be presenting a short piece on our motor starter on Friday morning November 9th.  For more details, visit

I hope to hear from you soon – stay safe!

Dennis Doody
Project Manager – Motor Starters
Vilter Manufacturing – Emerson Climate Technologies

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