Q:

How does a chiller work?

A:

Quick Answer

A chiller works by compressing refrigerant gas and condensing it into a liquid, which then triggers the metering device to decrease pressure. Once the pressure drops, the liquid evaporates and pulls heat out of the water.

Know More

Full Answer

The functioning of a chiller depends on the type of chiller. The vapor compressor has four different components: compressor, condenser, metering device and evaporator. Once the warmed refrigerant liquid pulls heat from the water, it evaporates back into warm gas that then goes through the entire process all over again.

Another type of chiller is the absorption chiller, which substitutes the compressor with heat. This process starts when water and an absorbent combine. The mixture is put under pressure and heats. The water evaporates, becomes water vapor and condenses. The resulting super-pressurized liquid flows through an evaporator where it turns into a gas. While evaporating, it pulls heat from the water. The gas returns to repeat the cycle and recombines with the absorbent.

Both types of chillers contain liquid refrigerant, a necessity in the cooling process, an evaporator and a condenser. Cooling towers are sometimes used in large chillers. These devices help the chillers to release the heat that builds up in the system.

Learn more about Refrigerators & Freezers

Related Questions

  • Q:

    How does an absorption chiller work ?

    A:

    An absorption chiller works by using a compressor to boil vapor out of a solution of water and lithium bromide. The refrigerant vapor is then compressed to a higher pressure.

    Full Answer >
    Filed Under:
  • Q:

    How does an air-cooled chiller work?

    A:

    An air-cooled chiller is a refrigerating system used to cool or dehumidify air by flowing a refrigerant over an evaporator tube bundle. This process draws vapors out of the evaporator and ultimately allows the pressurized refrigerant to condense on a system of tubes and cool the air. When the refrigerant passes through an expansion device, it lowers its temperature. Air-cooled chillers are used in a number of professional settings.

    Full Answer >
    Filed Under:
  • Q:

    How does an aftercooler work?

    A:

    An aftercooler removes heat from the compressed air coming from a supercharger before it enters an engine's induction system. This increases efficiency and power by increasing the density of the air, making for more air molecules per cubic foot. Aftercoolers may also be known as intercoolers. The terms were coined according to the placement of the system within an engine, but aftercoolers and intercoolers function similarly.

    Full Answer >
  • Q:

    How does a refrigerator work?

    A:

    The cooling process in a refrigerator is accomplished through a cooling agent known as a refrigerant, which circulates through the refrigerator via a series of coils. There, it changes between two forms: liquid and gas. As the refrigerant evaporates, it absorbs the heat, which is then released into the external environment, thus cooling off the air contained in the refrigerator.

    Full Answer >

Explore