Answer:
Answered
Explanation:
COP is the coefficient of performance of refrigerator and Heat pump
COP of refrigerator is given by
cooling effect/work input =
And for ideal refrigeration cycle
COP=
COP of heat pump is given by
Heating effect/ work input =
And for ideal Heat pump cycle
COP=
Now, we can conclude that
Answer:
The solution for the given problem is done below.
Explanation:
M1 = 2.0
= 0.3636
= 0.5289
= 0.7934
Isentropic Flow Chart: M1 = 2.0 , = 1.8
T1 = (1.8)(288K) = 653.4 K.
In order to choke the flow at the exit (M2=1), the above T0* must be stagnation temperature at the exit.
At the inlet,
T02= = (1.8)(288K) = 518.4 K.
Q= Cp(T02-T01) = = 135.7* J/Kg.
Answer:
Input
Explanation:
Making a block of cheese into shredded cheese with a cheese grater
Input is the block of cheese
The output is the shredded cheese
Answer:
Explanation:
The proportional gain K is usually a fixed property of the controller . If proportional gain is increased , The sensitivity of the controller to error is increased but the stability is impaired. The system approaches the behaviour of on off controlled system and it response become oscillatory
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