Cop of vapour absorption refrigeration system. ...
a.)more than 1
b.)less than 1..... And discuss ur answer
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Refrigerator is a power absorbing device.
COP is nothing but the efficiency in different words.
COP = Outpu/Input = (Desired effect/ Work Input)
for a refrigerator working between two temperature limits, T1(higher) and T2(lower)
Refrigerator will be throwing the heat taking from the T2( Storage Space) to T1(Room or any exhaust at higher temperature).
T1] ————Q1←———[ Ref ]—————Q2←————— [ T2
COP= (Heat taken from the Storage Space)/(Work Input) = Q2/W, , where W in work input.
as, Q1=Q2+W
so, COP= Q2/(Q1-Q2),
applying the reversible refrigerator theory, Q can be replaced by temperature (100% Second Law Efficiency).
COP=T2/(T1-T2),
as, T1>T2
so, COP > 1 (until T1> 2*T2).
Generally T1 and T2 difference is less than T2 so efficiency is always greater than 1
COP is nothing but the efficiency in different words.
COP = Outpu/Input = (Desired effect/ Work Input)
for a refrigerator working between two temperature limits, T1(higher) and T2(lower)
Refrigerator will be throwing the heat taking from the T2( Storage Space) to T1(Room or any exhaust at higher temperature).
T1] ————Q1←———[ Ref ]—————Q2←————— [ T2
COP= (Heat taken from the Storage Space)/(Work Input) = Q2/W, , where W in work input.
as, Q1=Q2+W
so, COP= Q2/(Q1-Q2),
applying the reversible refrigerator theory, Q can be replaced by temperature (100% Second Law Efficiency).
COP=T2/(T1-T2),
as, T1>T2
so, COP > 1 (until T1> 2*T2).
Generally T1 and T2 difference is less than T2 so efficiency is always greater than 1
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