As shown in Fig. 2, an air conditioner operating at steady state maintains a dwelling at...

  

Transcribed Image Text:

As shown in Fig. 2, an air conditioner operating at steady state maintains a dwelling at 70 °F on a day when the outside temperature is 90 °F. If the rate of heat transfer into the dwelling through the walls and roof is 30,000 Btu/h, might a net power input to the air conditioner compressor of 3 hp be sufficient? If yes, determine the coefficient of performance. If no, determine the minimum theoretical power input, in hp. P= 10 MPa 7,-400°C pconstant Chnide, constant Matrigrant ke Co P=0.1 MPa T= 100°C Cunr Fig. 2 Fig.3 As shown in Fig. 2, an air conditioner operating at steady state maintains a dwelling at 70 °F on a day when the outside temperature is 90 °F. If the rate of heat transfer into the dwelling through the walls and roof is 30,000 Btu/h, might a net power input to the air conditioner compressor of 3 hp be sufficient? If yes, determine the coefficient of performance. If no, determine the minimum theoretical power input, in hp. P= 10 MPa 7,-400°C pconstant Chnide, constant Matrigrant ke Co P=0.1 MPa T= 100°C Cunr Fig. 2 Fig.3