//number of cylinders
K=1
//brake power of engine(in kW)
bp=20
//speed of the engine(in rpm)
N=6000
//air gas ratio
Raf=8
//compression ratio
Rc=8
//volumetric efficiency
nv=0.7
//indicated thermal efficiency
nth=0.33
//indicated mechanical efficiency
nm=0.8
//calorific value of hydrogen(in kJ/m^3)
CV=11000
//P.S-note that the value of mechanical efficiency given as 0.9 in the question is taken as 0.8 during calculation