Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
RCA Chapter 2
The Refrigeration Process
| Term | Definition |
|---|---|
| automatic expansion valve (AEV) | metering device that maintains a constant evaporator pressure |
| suction line | the refrigerant-carrying line that connects the outlet of the evaporator to the compressor |
| bulb pressure | pressure that facilitates the opening of the thermostatic expansion valve |
| capillary tube | a fixed bore metering device |
| compression | the portion of the compression process in which the refrigerant is compressed |
| compressor | the component of an air conditioning system that pumps refrigerant through the system by increasing the pressure of the vapor refrigerant |
| condenser | a heat transfer surface in an air conditioning system that rejects heat |
| condenser saturation temperature | the temperature at which system refrigerant will condense in the condenser; this temperature corresponds to the high side pressure in the system on a pressure/temperature chart |
| total system charge | the amount of refrigerant a system contains |
| supply air | the air that is returned to the conditioned space after it has passed through the evaporator |
| cylinder | the component part of a reciprocating compressor that houses the piston |
| dehumidifying | the process of removing humidity from the air |
| desuperheating | the process by which the discharge refrigerant from the compressor is cooled down to the condenser saturation temperature |
| dew point | the temperature at which air reaches 100% humidity. For blended refrigerants, the temperature used to calculate evaporator superheat |
| discharge | the portion of the compression process when the refrigerant is discharged from the compressor |
| discharge line | the refrigerant line that carries the discharge refrigerant from the compressor to the condenser |
| discharge pressure | the pressure of the refrigerant in the high-pressure side of the air conditioning system; also referred to as the high-side or head pressure |
| discharge valve | the component part of a reciprocating compressor that opens to discharge refrigerant from the compressor into the discharge line |
| suction pressure | the pressure of the low side of the system; also called low-side or back pressure |
| evaporator | the component part of an air conditioning system that is responsible for absorbing heat from the space to be cooled |
| evaporator pressure | the pressure that corresponds to the temperature at which refrigerant vaporizes in the evaporator on a pressure/temperature chart |
| fixed-bore metering device | a metering device that does not open or close in response to changes in the load on the system. Examples of the fixed bore metering device are the capillary tube and the piston |
| liquid line | the refrigerant-carrying line that connects the condenser to the metering device |
| metering device | the component of an air conditioning system that controls the flow of refrigerant to the evaporator |
| outside ambient temperature | the temperature of the air that surrounds the outdoor coil of an air conditioning system |
| piston | the component part of the reciprocating compressor that moves back and forth within the cylinder to compress or expand the refrigerant in the cylinder |
| return air | air from the conditioned space that is returning to the air handler |
| thermostatic expansion valve (TEV) | metering device designed to maintain a constant evaporator superheat |
Created by:
DHeptner