Answer:
58.1%
59.533%
1.433%
Explanation:
[tex]\frac{V_1}{V_2}[/tex] = Compression ratio
[tex]\gamma[/tex] = Specific heat ratio = 1.4
Efficiency in the Otto cycle is given by
[tex]\eta=1-\frac{1}{\left(\frac{V_1}{V_2}\right)^{\gamma-1}}\\\Rightarrow \eta=1-\frac{1}{\left(8.8\right)^{1.4-1}}\\\Rightarrow \eta=0.581[/tex]
The ideal efficiency of the engine is 58.1%
[tex]\eta=1-\frac{1}{\left(\frac{V_1}{V_2}\right)^{\gamma-1}}\\\Rightarrow \eta=1-\frac{1}{\left(9.6\right)^{1.4-1}}\\\Rightarrow \eta=0.59533[/tex]
The ideal efficiency of the engine is 59.533%
Increase in efficiency is 59.533-58.1 = 1.433%
