Answer:
η = 87.05 %
Explanation:
Given that
Pressure ratio r= 10
T₁=300 K
T₃=1200 K
We know that ,for air γ = 1.4
As we know the efficiency of Brayton cycle when regeneration given as
[tex]\eta=1-\dfrac{T_1}{T_3}.r^{\dfrac{\gamma-1}{\gamma}}[/tex]
Now by putting the values
[tex]\eta=1-\dfrac{T_1}{T_3}.r^{\dfrac{\gamma-1}{\gamma}}[/tex]
[tex]\eta=1-\dfrac{300}{1200}\times 10^{\dfrac{1.4-1}{1.4}}[/tex]
η = 0.8705
η = 87.05 %
