Respuesta :
Answer:
heat transfer from natural gas is 2105.26 MW
heat transfer to river is 1305.26 MW
Explanation:
given data
power output Wn = 800 MW
efficiency = 38%
solution
we know that efficiency is express as
[tex]\eta = \frac{Wn}{Qin}[/tex] ......................1
put here value we get
38% = [tex]\frac{800}{Qin}[/tex]
Qin = 2105.26 MW
so heat supply is 2105.26
so we can say
Wn = Qin - Qout
800 = 2105.26 - Qout
Qout = 2105.26 - 800
Qout = 1305.26 MW
so heat transfer from natural gas is 2105.26 MW
and heat transfer to river is 1305.26 MW
A. The heat transfer rate from natural gas is 2105.26 MW
B. The heat transfer rate to river is 1305.26 MW
Efficiency formula
Efficiency = (power output / power input) × 100
A. How to determine the heat transfer from natural gas
- Efficiency = 38%
- Power output = 800 MW
- Power input =?
Power input = Power input / efficiency
Power input = 800 / 38%
Power input = 800 / 0.38
Power input = 2105.26 MW
Thus, the heat transfer from natural gas is 2105.26 MW
B. How to determine the heat transfer to the river
- Total heat = 2105.26 MW
- Heat used by plant = 800 MW
- Heat to the river =?
Heat to the river = 2105.26 – 800
Heat to the river = 1305.26 MW
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