Refrigerant as a work fluid to keep an environment at 25 ° C. A heat pump using 134a is used. The heat pump keeps heat entering the evaporator at a temperature of 50 ° C. and 2,718 kW of heat from the geothermal water that comes out of the evaporator at 40 ° C. Cooler fluid enters the evaporator at 15% dryness at 20 ° C and saturated at the same pressure comes out as steam. Since the compressor consumes 1.2 kW of power; a-) Mass flow rate of the refrigerant, b-) The heat provided for heating purposes per unit time, c-) COP value of the heat pump, d-) Find the minimum power required for the compressor in case of providing the same amount of heat.
Refrigerant as a work fluid to keep an environment at 25 ° C. A heat pump using 134a is used. The heat pump keeps heat entering the evaporator at a temperature of 50 ° C. and 2,718 kW of heat from the geothermal water that comes out of the evaporator at 40 ° C. Cooler fluid enters the evaporator at 15% dryness at 20 ° C and saturated at the same pressure comes out as steam. Since the compressor consumes 1.2 kW of power; a-) Mass flow rate of the refrigerant, b-) The heat provided for heating purposes per unit time, c-) COP value of the heat pump, d-) Find the minimum power required for the compressor in case of providing the same amount of heat.
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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Refrigerant as a work fluid to keep an environment at 25 ° C.
A heat pump using 134a is used. The heat pump keeps heat entering the evaporator at a temperature of 50 ° C.
and 2,718 kW of heat from the geothermal water that comes out of the evaporator at 40 ° C. Cooler
fluid enters the evaporator at 15% dryness at 20 ° C and saturated at the same pressure
comes out as steam. Since the compressor consumes 1.2 kW of power;
a-) Mass flow rate of the refrigerant,
b-) The heat provided for heating purposes per unit time,
c-) COP value of the heat pump,
d-) Find the minimum power required for the compressor in case of providing the same amount of heat.
Transcribed Image Text:QH
Yoğuşturucu
Kısılma vanası
Kompresör
Buharlaştırıcı
20°C
x=0.15
QL
Doymuş buhar
Jeotermal su
50°C
40°C
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