Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Strengthening of Alloys
Strengthening of the alloys is required as metals become weak due to various lattice defects, metal bonding phenomena. The strength of the metals is not enough for any mechanical work. The internal dislocations of any metals arise due to forming processe…
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Problem 4 In an ammonia system one evaporator is to provide 180 kW of refrigeration at -30°C and another evaporator is to provide 200 kW at 5°C. The system uses two stage compression with intercooling and flash gas removal as shown below. The condensing temperature is 40°C. Calculate the power requirement and COP of the system. Condenser 40°C High-stage compressor Evaporator 5°C 6. 200 kW Intercooler and flash tank Evaporator -30°C 180 kW 8 Low-stage compressor
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Transcribed Image Text:Problem 4 In an ammonia system one evaporator is to provide 180 kW of refrigeration at -30°C and another evaporator is to provide 200 kW at 5°C. The system uses two stage compression with intercooling and flash gas removal as shown below. The condensing temperature is 40°C. Calculate the power requirement and COP of the system. Condenser 40°C High-stage compressor Evaporator 5°C 6. 200 kW Intercooler and flash tank Evaporator -30°C 180 kW 8 Low-stage compressor
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