Question

D. What is the function of a flash intercooler provided in a compound vapour compression refrigeration system?

Answer 1

Explanation:

A flash chamber is a device which separates liquid from vapors. Only liquid is then passed to evaporator and the vapors will be passed to the compressor directly. After the condenser condenses the refrigerant, it is passed through an expansion valve to reduce its pressure to evaporator pressure.

Answer 2

A device that distinguishes between liquids and vapors is a flash chamber.

• The refrigerant is fed through an expansion valve to lower its pressure to evaporator pressure after the condenser condenses it.
• However, some of the liquid also turns back into vapor in the process.
• We now understand that the evaporator is a wasteful operation. So a flash chamber is employed to prevent vapor from entering the evaporator.
• A device that distinguishes between liquids and vapors is a flash chamber.
• Only the liquid is sent to the evaporator, while the vapors are sent straight to the compressor.
• Flash intercooling refers to the flash chamber located between the condenser and evaporator.
• Multiple flash chambers can be employed in the VCRS cycle to ensure perfect pressure decrease and the greatest amount of liquid to be transferred through the evaporator.

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