Chillers

Absorption chillers have been around for more than 75 years, with several thousand chillers operating successfully all over the world today. Yet myths about cost, operation and performance surround this technology, particularly in North America. Look beyond the myths and you’ll discover absorption cooling technology can be efficient, cost-effective, flexible and reliable.

Plastics processors are looking to advanced process cooling equipment to lower operational costs, and in many cases, improve the quality of products and achieve sustainability goals. But it’s more than just a matter of finding a better mousetrap and putting systems to work. Instead, it requires a keen understanding of the processes involved, followed by the design and installation of advanced technology in combination with the right process cooling systems matched to a company’s goals.
Intelligent process cooling describes an approach to cooling in beverage production and packaging that moves beyond evaporative cooling towers and the use of traditional central chiller systems that rely on ammonia as a refrigerant. Unlike traditional methods, it intelligently matches process cooling systems to individual cooling loads without an evaporative process or the use of ammonia to gain verifiably better results in energy efficiency, water use, and safety.
What do the beginnings of innovative businesses have in common? Certainly abstract attributes like creativity, intelligence and dedication all play a part, but in many cases the origins of great businesses have another, more concrete thing in common — a garage. Amazon, for instance, was originally founded by Jeff Bezos in his garage. Walt and Roy Disney made some of their first animated films in their uncle’s garage. And, last but not least, Steve Jobs, Steve Wozniak and Ronald Wayne designed the first Apple computer in a garage.
It’s been more than a decade since oil-free magnetic bearing centrifugal compressors hit the HVAC market. With unheard-of part-load energy efficiency and zero oil-related maintenance, these ultra-quiet machines are totally sustainable because there is no oil to change the heat transfer rates in the heat exchangers. Now there are more than 35,000 of them out there logging over 55 million run-hours, and all of them have an initial cost premium.
Pepco Energy Services’ (PES) Midtown Thermal Control Center (MTCC) in Atlantic City, New Jersey, sells chilled water and steam to multiple Atlantic City casinos, Boardwalk Hall and Pier Shops. PES is also responsible for stand-alone remote heating and cooling plants for the Atlantic City’s major casino’s as well as the Atlantic City Convention Center including its 2.4 Mw solar array.
No matter what your application, there is a single formula for determining the size of chiller you need. There also industry-specific, rules-of-thumb for chiller sizing. These may vary depending upon the application. These guidelines and formulas may be used for sizing chillers for plastic process cooling applications.
Process cooling system applications experiencing constant production loads generating high process fluid temperatures are particularly good candidates to take advantage of low ambient temperatures. Low ambient temperatures can be used as a “free” energy source, replacing the electricity required to run refrigeration compressors, in what is known as a free-cooling chiller system.
When compressed air is generated, heat is inevitably produced as a by-product. Anyone looking to enhance efficiency can use this heat and increase the efficiency of compressors to about 95 percent as a result. To achieve this, there are easy-fit heat exchangers which can be fitted to existing air compressor stations. This investment often pays for itself within less than a year.  
There are six basic types of cooling systems that you can choose from to meet the cooling needs of your load. Each one has its strengths and weaknesses. This article was written to identify the different types of cooling systems and identify their strengths and weaknesses so that you can make an informed choice based on your needs.
Compressed air systems are present in almost all industrial processes and facilities. They have been correctly identified as an area of opportunity to reduce electrical (kW) energy costs through measures like reducing compressed air leaks and identifying artificial demand and inappropriate uses. Water-cooled air compressors can also be significant consumers of water and reducing these costs can represent a second area of opportunity.