How to solve

$9-33$ An ideal Otto cycle has a compression ratio of $8.$ At

the beginning of the compression process, air is at $95$ kPa

and $27C,$ and $750k\frac{J}{k}g$ of heat is transferred to air dur$-$

ing the constant$-$volume heat$-$addition process. Faking into

aceount the rariation of epecific heats with lemperature.

determine $($a$)$ the pressure and temperature at the end of

the heat$-$addition process, $($b$)$ the net work output, $($c$)$ the

thermal efficiency, and $($d$)$ the mean effective pressure for

the cycle. Answers: $($a$)3898$kPa,$1539K,($b$)392\mathrm{.}4k\frac{J}{k}g,$

$($c$)52\mathrm{.}3$ percent, $($d$)495$ kPa Answers aledifferent

Note: use the constant specific heat method

Complete the attached table$9-33$ An ideal Otto cycle has a compression ratio of $8.$ At

the beginning of the compression process, air is at $95$ kPa

and $27C,$ and $750k\frac{J}{k}g$ of heat is transferred to air dur$-$

ing the constant$-$volume heat$-$addition process. Faking into

aceount the rariation of epecific heats with lemperature.

determine $($a$)$ the pressure and temperature at the end of

the heat$-$addition process, $($b$)$ the net work output, $($c$)$ the

thermal efficiency, and $($d$)$ the mean effective pressure for

the cycle. Answers: $($a$)3898$kPa,$1539K,($b$)392\mathrm{.}4k\frac{J}{k}g,$

$($c$)52\mathrm{.}3$ percent, $($d$)495$ kPa Answers aledifferent

Note: use the constant specific heat method

Complete the attached table