Fuel

Efficiency result

ηSE

Carnot

Ratio

Xs

Af

Cvf

Cpf

Rw

Wood

39.3%

81.5%

48.2%

1.5

6

15,000

1.8

15.0%

Petrol

51.7%

89.8%

57.6%

1

14.7

45,000

2.22

0.0%

Diesel

46.2%

86.5%

53.4%

1.5

14.5

46,000

2.22

0.0%

Methane

52.9%

90.5%

58.5%

1

17.19

55,500

2.22

0.0%

Propane

53.1%

90.6%

58.6%

1

15.67

50,300

1.67

0.0%

Methanol

52.2%

90.1%

57.9%

1

6.47

23,000

1.93

0.0%

Ethanol

52.3%

90.2%

58.0%

1

9

30,000

1.88

0.0%

Hydrogen

53.3%

90.7%

58.8

1

34

141,790

14.3

0.0%