Common Chiller Types
A process chiller is no doubt one of the most essential cooling apparatus in the many types of organization and economical industry.
Chillers are commonly classified into two: air cooled and water cooled chillers.
Water cooled chillers do the chilling or cooling process through absorbing of heat by water and passing it unto another source of water. The water cooled chiller commonly uses its cooling tower as its source of water (where it transfers the heat to). This cooling tower is often a subpart of the process cooling equipment. The water source is not only limited to a cooling tower though. In some industrial plants , there are also cases wherein water sources can be ponds or rivers, all depending on the company that owns the plant.
Now, while industrial water chillers use water as the absorbed-heat receiver, the other common type of chiller does it in a somehow similar but entirely different way.
Air cooled chillers do the chilling or cooling process through capturing heat from the ambient and casting it out still unto the surroundings by air. While water cooled chillers frequently use the water to absorb heat, air cooled units can use both water and air to do so. Many industrial air chillers use a structure commonly referred to as wet cooling tower. This wet cooling tower circulates water into the condenser and is then placed back into the structure where it is met with a fan. Air chillers can also do the cooling process with just air (standalone). This commonly happens when there is, of course, absence or lack of water. The system then makes use of fans with the company of a hot refrigerant vapor and a heat exchanger to gather heat instead.
The subpart of many, if not all, process chillers consists of a cooling structure that rejects heat. In order to do a cooling process, the device that it is frequently in an industrial chiller internal part functions by extracting heat and rejecting it through transferring it to another depending on the cooling system they are built with. In this case, water for water cooled units and fans and optional water for the air cooled types of chiller.
Air cooled are said to be smaller and tend to become noisy in comparison to the quiet water cooled units. Then again, these tranquil units are 3 to 4 times more expensive than air cooled chilling units.
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