Answer:41.67kW
Explanation: a) power = force * velocity
Convert km/hr to m/s=1000m/(60×60s)
=1000/3600
P=F×vel
Power =1500×100× 1000/3600
=1500×100×5/18
=41,666.67W
=41.67kW
Answer:
a) Ql=33120000 kJ
b) COP = 5.6
c) COPreversible= 29.3
Explanation:
a) of the attached figure we have:
HP is heat pump, W is the work supplied, Th is the higher temperature, Tl is the low temperature, Ql is heat supplied and Qh is the heat rejected. The worj is:
W=Qh-Ql
Ql=Qh-W
where W=2000 kWh
Qh=120000 kJ/h

b) The coefficient of performance is:

c) The coefficient of performance of a reversible heat pump is:

Th=20+273=293 K
Tl=10+273=283K
Replacing:

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