What is the thermal efficiency of a gas power cycle using thermal energy reservoirs at 627°C and 60°C? The thermal efficiency is
1 answer:
Answer
63 %
Explanation:
It is given that the reservoirs is at the temperature of 627°C and 27°C
So lower temperature that is = 60°C=273+60=333 K
And the higher temperature that is = 627°C =273+627=900 K
We know that the thermal efficiency of thermal reservoir = 1- =
= 0.63 =63 %
So the efficiency of the reservoir is 63%
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Answer:
Explanation:
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Answer:
a) 280MPa
b) -100MPa
c) -0.35
d) 380 MPa
Explanation:
GIVEN DATA:
mean stress
stress amplitude
a)
--------------1
-----------2
solving 1 and 2 equation we get
b)
c)
stress ratio
d)magnitude of stress range
= 280 -(-100) = 380 MPa