Question

If the compression ratio of an Otto engine is 5 , then what is it's efficiency ?​

Answer 1

Answer:

γ=1.5

r

γ−1

=

5

7

r=

5

7

≈1.18

r

γ−1

1

=

1.18

1

≈0.845

1−

r

γ−1

1

=1−0.845≈0.14=

100

14

=14%

Answer 2

Answer:

y -5

is one

most than

1 but not