Chiller plant working principle

Water chiller is an integral part of an HVAC system. It removes heat from the system by cooling and dehumidifying the air. Process chillers contain a chemical compoun called a refrigerant.

There are many types of refrigerant and applications depending on the temperatures required but they all work on the basic principle of compression and phase-change of the refrigerant from a liquid to a gas and back to a liquid. How Does a Chiller Work ?

Industrial Chiller System Working Principles. If your facility uses process fluids or heavy-duty machinery that generates heat, you’ll need an industrial chiller system to cool your processes and internal machine components. The definition of a plant chiller is a device that lowers the soil temperature to degrees. Asked in Modification of Old Electrical Work.

They both have an evaporator, compressor, condenser and an expansion valve. The main difference is that one uses air to fuel condenser cooling and the other uses water. An HVAC chiller works on vapor compression or vapor absorption cycle.

In vapor compression cycle, refrigerant circulates in evaporator ,compressor, condenser and expansion valve of a chiller. A thermodynamic process occurs in each of above chillers. Theoretical working of Vapor compression or compression. This TDP module on water-cooled chillers starts with a history of the first centrifugal chiller and describes the first applications for early water-cooled chillers. After a discussion of the rela-tive merits of water-cooled chillers , the refrigeration cycle for a water-cooled centrifugal chiller is explained using pressure-enthalpy diagrams.

Fluid chillers remove heat based on the immutable principle that heat will move from a hotter source to a colder source – from the process to a conditioned fluid. They comprise two main parts called circuits – a refrigeration and a fluid circuit. This liquid can then be circulated through a heat exchanger to cool equipment, or another process stream. As a necessary by-product, refrigeration creates waste heat that must be exhausted to ambience, or for greater efficiency, recovered for heating purposes.

Chilled water is used to cool and dehumidify air in mid- to large-size commercial, industrial, and institutional facilities. Every chiller system contains a refrigerant. The process starts with a low-pressure refrigerant entering the evaporator. Inside the evaporator, the refrigerant is heate causing it to undergo a phase change into a gas. The refrigeration circuit is the most technical part of how a chiller works.

In the case of chillers, heat is taken from the fluid being chilled and transferred to the ambient air.

Chillers provide chilled water at a constant temperature, as desired. Typically they reject heat into the atmosphere, but this could also be a river or ocean. Chillers consume work (in the compressor) to move the heat against the natural gradient. Refrigeration and air conditioning systems cover a wide variety of cooling applications, using both standard and custom-made equipments. The Principles of Basic Refrigeration.

In plants of today the most modern technology is being used for the design, the components and the control strategy, which, of course, improves the economic value and. A chiller is simply a device that used to remove heat from something. The chiller is the section of the system where an exchange of heat occurred between the water that goes to the building and the evaporator.

The water leaves the chilled water evaporator at 45°F or 7°C. This chilled-water is then circulated through the entire building by the use of a pump. Most cooling towers work based on the principle of “evaporative cooling“. What is Evaporative Cooling?

Evaporative cooling is the process where warm water from an industrial process is pumped up to the top of the cooling tower where the water distribution system is.