8. What would be done to increase the compressor speedon a belt-driven compressor?A. Decrease drive pulley sizeB. Increase drive pulley sizeC. Increase driven pulley size13. What lubricates the refrigeration compressor?A. RefrigerantB. MoistureC. DesiccantsD. OilD. Both A andC9. Describe the reciprocating compressor piston, rod,crankshaft, valves, valve plate, head, shaft seal, internalmotor overload device, pilot-duty motor overload de-vice, and coupling.10. Name two things in the design of a reciprocating com-pressor that control the efficiency of the compressor.А.14. What can the service technician do to keep the refrig-eration system operating at peak efficiency?15. List the main advantage that a discus compressor'svalve plate design has over a conventional piston-typeВ.11. At what speeds in rpm does a hermetic compressor nor-mally turn?A. 1750В. 3450C. 4500D. Both A and B12. What effect does a slight amount of liquid refrigeranthave on a compressor over a long period of time?compressor.16. Briefly describe how the scroll compressor compressesrefrigerant gas.17. List four main advantages a scroll compressor has overa conventional piston-type compressor.18. What are two main reasons why a compressor shouldhave modulating capacity control?19. Briefly describe how the digital capacity control for ascroll compressor works.20. List the three main advantages of having digital capac-ity control on a scroll compressor.21. Explain how a compressor can be oil-free.

Dear student, According to the guidelines I am allowed to answer only one…

Answered: 8. What would be done to increase the…

8. What would be done to increase the compressor speed on a belt-driven compressor? A. Decrease drive pulley size B. Increase drive pulley size C. Increase driven pulley size D. Both A and C

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter47: High-pressure, Low-pressure, And Absorption Chilled-water Systems

Section: Chapter Questions

Problem 9RQ: The approach temperature for the evaporator is A. the difference between the suction and head...

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Concept explainers

Power Transmission Elements

It is defined as the energy transfer from one location to another location. The energy will start moving from the energy generation source to the energy applied position to obtain the work output. From this method, a large amount of electric energy moves from the power station to various electrical substations.

Question

8. What would be done to increase the compressor speed
on a belt-driven compressor?
A. Decrease drive pulley size
B. Increase drive pulley size
C. Increase driven pulley size
13. What lubricates the refrigeration compressor?
A. Refrigerant
B. Moisture
C. Desiccants
D. Oil
D. Both A andC
9. Describe the reciprocating compressor piston, rod,
crankshaft, valves, valve plate, head, shaft seal, internal
motor overload device, pilot-duty motor overload de-
vice, and coupling.
10. Name two things in the design of a reciprocating com-
pressor that control the efficiency of the compressor.
А.
14. What can the service technician do to keep the refrig-
eration system operating at peak efficiency?
15. List the main advantage that a discus compressor's
valve plate design has over a conventional piston-type
В.
11. At what speeds in rpm does a hermetic compressor nor-
mally turn?
A. 1750
В. 3450
C. 4500
D. Both A and B
12. What effect does a slight amount of liquid refrigerant
have on a compressor over a long period of time?
compressor.
16. Briefly describe how the scroll compressor compresses
refrigerant gas.
17. List four main advantages a scroll compressor has over
a conventional piston-type compressor.
18. What are two main reasons why a compressor should
have modulating capacity control?
19. Briefly describe how the digital capacity control for a
scroll compressor works.
20. List the three main advantages of having digital capac-
ity control on a scroll compressor.
21. Explain how a compressor can be oil-free.

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