June 21, 2021
One of humankind’s most significant achievements has been the ability to generate heat and guide its movement for useful purposes. This ability is essential to modern life, especia...
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Mixing Valves, Thermostatic
January 28, 2021
As the use of electrical-powered building cooling continues to expand, electric utilities face a challenge: how to supply the necessary electrical energy in ways that do not create...
January 28, 2021
Many commercial and industrial buildings have heating and cooling load characteristics that are very different from smaller buildings. One of those characteristics is a frequent ne...
January 27, 2021
The classic approach to absorbing heat and humidity from occupied spaces is to pass air from those spaces through a chilled-water coil in an air handler. That coil provides both se...
January 27, 2021
There are several devices that can absorb heat from a room and transfer that heat to a stream of chilled water. Some have been used for several decades, while others are relatively...
January 24, 2021
Section 2 discussed the types of chillers often found in larger commercial and institutional cooling systems,
specifically:
• air-cooled chillers
• water-cooled chillers
January 20, 2021
Air is a combination of gases including oxygen (21%), nitrogen (78%), and small amounts of carbon dioxide, hydrogen and neon. Most air — with the exception of what is possible in a...
January 18, 2021
There are many options when it comes to cooling commercial and institutional buildings. They range from inexpensive (but intrusive) approaches, to sophisticated systems that can in...
January 14, 2021
Several methods for cooling commercial and institutional buildings have been developed based on the use of chilled water as the primary energy transport media. These methods offer ...
January 14, 2021
Most people living in developed countries take building cooling for granted. Most expect it in office buildings and stores. They also expect it in cars, buses, airplanes and trains...