Data for steady-state operation of a vapor-compression refrigeration cycle with Refrigerant 22 as the working fluid are given in the table below. The states are numbered as in the figure below. The mass flow rate of refrigerant is 8.42 lb/min. Heat transfer from the compressor to its surroundings occurs at a rate of 3.5 Btu per lb of refrigerant passing through the compressor. The condenser is water-cooled, with water entering at 65°F and leaving at 80°F with negligible change in pressure. out
Data for steady-state operation of a vapor-compression refrigeration cycle with Refrigerant 22 as the working fluid are given in the table below. The states are numbered as in the figure below. The mass flow rate of refrigerant is 8.42 lb/min. Heat transfer from the compressor to its surroundings occurs at a rate of 3.5 Btu per lb of refrigerant passing through the compressor. The condenser is water-cooled, with water entering at 65°F and leaving at 80°F with negligible change in pressure. out
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
Chapter22: Condensers
Section: Chapter Questions
Problem 7RQ: When a standard-efficiency air-cooled condenser is used, the condensing refrigerant will normally be...
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![Data for steady-state operation of a vapor-compression refrigeration cycle with Refrigerant 22 as the working fluid are given in the
table below. The states are numbered as in the figure below. The mass flow rate of refrigerant is 8.42 lb/min. Heat transfer from the
compressor to its surroundings occurs at a rate of 3.5 Btu per lb of refrigerant passing through the compressor. The condenser is
water-cooled, with water entering at 65°F and leaving at 80°F with negligible change in pressure.
3
t
Expansion
valve
lout
Condenser
Compressor
Evaporator
www
ein
Saturated or
superheated vapor](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd14d4333-0caa-4784-af51-d1d363318988%2F24d465ed-4135-4d5f-bf46-1b48837b0d1b%2Fp59dqu_processed.png&w=3840&q=75)
Transcribed Image Text:Data for steady-state operation of a vapor-compression refrigeration cycle with Refrigerant 22 as the working fluid are given in the
table below. The states are numbered as in the figure below. The mass flow rate of refrigerant is 8.42 lb/min. Heat transfer from the
compressor to its surroundings occurs at a rate of 3.5 Btu per lb of refrigerant passing through the compressor. The condenser is
water-cooled, with water entering at 65°F and leaving at 80°F with negligible change in pressure.
3
t
Expansion
valve
lout
Condenser
Compressor
Evaporator
www
ein
Saturated or
superheated vapor
![Determine:
State
1
2
3
4
р
Th
(lbf/in.2) (°F) (Btu/lb)
47.54 10
105.4
274.7
120
121.8
274.7 100 39.39
(a) the refrigeration capacity, in tons.
(b) the compressor power, in horsepower.
(c) the mass flow rate of the condenser cooling water, in lb/min.
47.54 10 39.39](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd14d4333-0caa-4784-af51-d1d363318988%2F24d465ed-4135-4d5f-bf46-1b48837b0d1b%2Fglph5qs_processed.png&w=3840&q=75)
Transcribed Image Text:Determine:
State
1
2
3
4
р
Th
(lbf/in.2) (°F) (Btu/lb)
47.54 10
105.4
274.7
120
121.8
274.7 100 39.39
(a) the refrigeration capacity, in tons.
(b) the compressor power, in horsepower.
(c) the mass flow rate of the condenser cooling water, in lb/min.
47.54 10 39.39
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