high-pressure condenser is at 1514.2 kPa. The cascade condenser Determine (a) the mass flow rate in the low-pressure loop, (b) required, (d) the COP, and (e) the quantity of the fluid entering PROBLEMS (1) Atwo-stage cascade refrigeration'system uses ammonia the working substance. The evaporator is at -35°C and the bigh-pressure condenser is at 1514.2 kPa. The cascade condenser is a direct-contract type. The refrigeration load is 90 tons. Determine (a) the mass flow rate in the low-pressure loop, (b) the mass flow rate in the high-pressure loop, (c) the power as the evaporator. Ans. (a) 0.2572 kg/s, (b) 0.341 kg/s, (c) 116.08 kW, (d) 2.73, (e) 10.37%
high-pressure condenser is at 1514.2 kPa. The cascade condenser Determine (a) the mass flow rate in the low-pressure loop, (b) required, (d) the COP, and (e) the quantity of the fluid entering PROBLEMS (1) Atwo-stage cascade refrigeration'system uses ammonia the working substance. The evaporator is at -35°C and the bigh-pressure condenser is at 1514.2 kPa. The cascade condenser is a direct-contract type. The refrigeration load is 90 tons. Determine (a) the mass flow rate in the low-pressure loop, (b) the mass flow rate in the high-pressure loop, (c) the power as the evaporator. Ans. (a) 0.2572 kg/s, (b) 0.341 kg/s, (c) 116.08 kW, (d) 2.73, (e) 10.37%
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:high-pressure condenser is at 1514.2 kPa. The cascade condenser
< Refrigeration by Sta. Maria(1)
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Refrigeration and Áir Buiditioning 97
PROBLEMS
(1) Atwo-stage cascade refrigeration'system uses ammonia
e the working substance. The evaporator is at -35°C and the
is a direct-contract type. The refrigeration load is 90 tons.
Determine (a) the mass flow rate in the low-pressure loop, (b)
the mass flow rate in the high-pressure loop, (c) the power
required, (d) the COP, and (e) the quantity of the fluid entering
the evaporator.
Ans. (a) 0.2572 kg/s, (b) 0.341 kg/s,
(c) 116.08 kW, (d) 2.73, (e) 10.37%
II
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