Derive the efficiency of air standard Otto cycle.

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written 3.4 years ago by

DevarenjiniP • 3.2k

• modified 3.4 years ago

OTTO CYCLE PROCESSES

Otto cycle

1-2 Isentropic Compression

2-3 Constant Volume Heating

3-4 Isentropic Expansion

4-1 Constant Volume Heating

OTTO CYCLE EFFICIENCY ( $η_.otto$ )

$η_.otto ={\frac{Heat supplied-Heat rejected}{Heat supplied}} \\$ $= \cfrac {m Cv (T3-T2) - m Cv (T4-T1)} {m Cv (T3-T2)}$ $$=\cfrac{T3-T2-(T4-T1)}{T3-T2} \$$

$=1-\frac{(T4-T1)}{T3-T2}\rightarrow \require{enclose} {\enclose{circle}{1}}\\$

Now,we have, Compression ratio, …

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OTTO CYCLE PROCESSES

OTTO CYCLE EFFICIENCY (η.ottoη_.otto)

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OTTO CYCLE EFFICIENCY ( $η_.otto$ )