Energy and power calculation on a Single Cylinder Diesel Engine using brake drum type loading

1.     Torque, T = 9.81 x W x R Effective Nm.
Where R Effective = (D + d)/2 or (D + tBelt)/2 m, and
W (Load) = ( S1 S2) Kg,
2.      Brake Power, B P = ( 2πN T ) / 60, 000 KW
Where N = rpm, T = Torque Nm,
3.      Fuel Consumption, m f = ( 50 ml x 10 6x ρ Fuel ) / ( t ) Kg/Sec
Here; 1 ml = 103 liters, and 1000 liters = 1m3
So 1 ml = 10 m3
4.     Heat energy available from the fuel brunt, Qs = mf  x C. V. x 3600 KJ/hr
5.      Heat energy equivalent to output brake power, QBP = BP x 3600 KJ/hr
6.     Heat energy lost to engine cooling water, QCW = mw x Cw (two twi) x 3600 KJ/hr
7.     Heat energy carried away by the exhaust gases, QEG = mfg x Cfg (tfg – tair) x 3600 KJ/hr
Where : mfg = (mf + mAir) Kg/Sec
mAir = Cd Ao √2 g Δh ρ Air ρ Water Kg/ Sec
ρ Air = ( Pa x 102 ) / ( R x Ta ) Kg/ m3
Cd ( Coefficient of Discharge ) = 0.6,
Ao ( Area of Orifice ) = (π do2)/ 4 m2 ,
P1 = 1.01325 Bar, R = 0.287 KJ/Kg K,
Ta = ( ta + 273 ) K, ta = Ambient Temperature o C
8.     Unaccounted heat energy loss, QUnaccounted = Qs – { QBP + QCW + QEG } KJ/hr

Disclaimer:
The above article doesn't give you any guarantee and the sole purpose of this article is to share my learning in the way I understood. Any comments to refine this article are welcome with great pleasure. Please report any breaking link by commenting below.

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