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ENGINE > Refrigeration > Flashcards

Refrigeration Flashcards

1
Q

What is the flow of refrigeration cycle?

A

The refrigeration cycle start with the compressor (vapor state HP & HT) to oil separator > Condenser (Liquid State HP& LT) > Receiver > Filter/Drier > Liquid Line Solenoid Valve (connected to control panel) > Sight Glass > Expansion Valve (Liquid LT & LP) > Evaporator (connected to thermostat) (Vapor LP & LT) > Evaporator Pressure Regulator > Suction Accumulator > Suction Line Filter/Drier > Compressor.

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2
Q

What Part of the Refrigeration Cycle is the responsible for the starting and stopping of compressor?

A

Thermostat

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3
Q

What are the causes of Icing of Evaporator?

A
  1. Dirty Fins (the heat cannot be absorbed by the evaporator)
  2. Insufficient refrigerant. Before going to the evaporator fins the refrigerant temp is already low.
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4
Q

What do you call the small amount of liquid refrigerant that is converted into gas in response to drop in pressure?

A

Flash Gas (example is the refrigerant that comes from expansion valve)

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ENGINE (6 decks)

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