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The compressor and turbine unit of a small gas turbine plant have an isentropic efficiency of 88%. The inlet air temp. of compressor is at $200^0C$ and maximum temp.
written 7.3 years ago by gravatar for teamques10 teamques10 ★ 65k •   modified 2.3 years ago

during the cycle is limited to $750^0C$. The pressure ratio is 4. Calculate specific output, overall efficiency of cycle. Take γ=1.4 and neglect all losses.

Mumbai University > Mechanical Engineering > Sem 7 > Power Plant Engineering

Marks : 10M

Year: Dec 2015
power plant engineering
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written 7.3 years ago by gravatar for teamques10 teamques10 ★ 65k

Isentropic Efficiency = 88%, Inlet air temperature = $20^0C$, Max Temperature = $750^0C$, Pressure ratio = 4, Gama = 1.4 ,

To Find: Specific output ,& overall efficiency.

T1 = 293 K ,& T3 = 1023 K

$\frac{T_2}{T_1} = \frac{P_2}{P_1 }^\frac{γ-1}{γ} = (4)^\frac{1.4-1}{1.4}$ = 1.4859 x 293 K

T’2 = …

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