Consider a heat pump cycle operating with R134-a fluid at 0.01kg/s mass flow rate. Conditions are given in the figure. a) What are the values of heat supply rate to the room and heat absorption rate from the outside? b) What is COP of this heat pump? c) Assume we immediately put a watermelon of 8kg to the room at 2°C. Assuming a specific heat of 4200J/kg for the watermelon, how long will it take for the watermelon to reach room temperature of 20°C if we assume that heat pump only heats watermelon? O A) 2.7 minutes O B)3.2 minutes O C) 4.4 minutes D) 5.3 minutes

Consider a heat pump cycle operating with R134-a fluid at 0.01kg/s mass flow rate. Conditions are given in the figure. a) What are the values of heat supply rate to the room and heat absorption rate from the outside? b) What is COP of this heat pump? c) Assume we immediately put a watermelon of 8kg to the room at 2°C. Assuming a specific heat of 4200J/kg for the watermelon, how long will it take for the watermelon to reach room temperature of 20°C if we assume that heat pump only heats watermelon? O A) 2.7 minutes O B)3.2 minutes O C) 4.4 minutes D) 5.3 minutes

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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Question

ROOM
(2) 700kPa x=0
CONDENSER
(1) 40°C 700kPa
EXPANSION
VALVE
(3) 100kPa
EVAPORATOR
(4) 100kPa x=1
Q in
OUTSIDE
Consider a heat pump cycle operating with R134-a fluid at 0.01kg/s mass flow rate. Conditions are given in the figure.
a) What are the values of heat supply rate to the room and heat absorption rate from the outside?
b) What is COP of this heat pump?
c) Assume we immediately put a watermelon of 8kg to the room at 2°C. Assuming a specific heat of 4200J/kg for the watermelon, how long will
it take for the watermelon to reach room temperature of 20°C if we assume that heat pump only heats watermelon?
A) 2.7 minutes
B) 3.2 minutes
C) 4.4 minutes
D) 5.3 minutes
E) 6.2 minutes
COMP.

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