Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Textbook Question
Chapter 21, Problem 2RQ
Refrigerant in the evaporator
A. changes from vapor to liquid.
B. changes from liquid to vapor.
C. stays in the vapor state.
D. stays in the liquid state.
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When a refrigeration system's suction line is noticeably cold instead of just being cool , it probably contains refrigerant .
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Chapter 21 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 21 - What is the function of the evaporator in the...Ch. 21 - Refrigerant in the evaporator A. changes from...Ch. 21 - The sensible heat that is added to a saturated...Ch. 21 - What determines the pressure on the low-pressure...Ch. 21 - A refrigerant system's evaporator typically runs...Ch. 21 - What does a high evaporator superheat indicate?Ch. 21 - A low evaporator superheat indicates A....Ch. 21 - Why is a multicircuit evaporator used?Ch. 21 - Flooded evaporators use a(n) ______type of...Ch. 21 - An evaporator that is not flooded is thought of as...
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- What is the purpose of multiple passes in a chiller evaporator?arrow_forwardWhich list states the correct order of components for the absorption refrigeration? A) Evaporator, then absorber, then concentrator, then condenser. B) Absorber, then condenser, then evaporator, then concentrator. C) Condenser, then absorber, then concentrator, then evaporator.arrow_forwardto run d. both a and b 44. Ifa thermostatic expansion valve's thermal bulb came loose from the suction line at the outlet of the evaporator, whích of the following could result? The bulb pressure would increase and the c. thermostatic expansion valve would open. b. The superheat in the evaporator would decrease. a. Liquid refrigerant would flow back to the compressor. d. All of the above are correct. 45. If the thermal bulb assembly develops a leak, what will occur? All of the system's refrigerant will leak a. The valve will open to allow more c. refrigerant to flow. d. It will have no effect on system operation. out. b. The bulb pressure will reduce and the valve will close. 46. The purpose of an externally equalized thermostatic expansion valve is to compensate for excessive evaporator pressure drop b. allow system to equalize faster a. prevent the expansion valve from frosting up d. c. allow refrigerant to expand in the compressor 47. The primary function of an expansion device is…arrow_forward
- 1. What other substance circulates in the refrigeration system with the refrigerant? 2. What would happen if there were more refrigerant in the system than the condenser and receiver could hold?arrow_forwardWhat does a 1 ton refrigerant represent: a. The weight of the air conditione r b. The amount heat required to cool 1 ton of air in 1 hour c. The amount of heat required to melt 1 ton of ice at 0 degree in 24 hours d. The weight of the refrigerant used.arrow_forward________distinguises the system from the surroundings. a. boundary b control surface c. control volume d.. both b and carrow_forward
- In what form or phase is the total mass of water held within the cotton bales at the end of the conditioning period. a. vapor or gas b. supercooled fluid c. condensed or liquid d. vapor-liquid mixturearrow_forwardDifferentiate compressor, fan, and blower.arrow_forwardA refrigerant system's evaporator typically runs about ______degrees of superheat.arrow_forward
- In order to increase the temperature of a room, ____________ A. none of the answers given B. remove the room heat C. just add some mass to the room. D. just decrease the pressure of the room airarrow_forwardWhen two fluids differ in densities, which of the following will always occur?A. The denser fluid will always stay at the bottom of the container.B. The denser fluid is heavier in mass if the volume of the liquids is equal.C. The lighter fluid experiences more vapor pressure than the denser fluid.D. The lighter fluid has more tendency to exhibit capillary movement.arrow_forwardWhich of the following statements is true? Refrigerant leaves the compressor as a high-pressure, high-temperature liquid. Refrigerant leaves the condenser as a low-pressure, low-temperature liquid. Refrigerant returns to the compressor as a low-pressure, high-temperature vapor. None of the above.arrow_forward
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