L9

13/08/26 Thu 8:55am

Combustion & Emission Characteristics for Alcohol Fuels

Combustion	Performance	Emission
1. HRR (Heat reset rate)	1. BTG (brake thermal efficiency)	1. CO
2. Pressure Vs Crank angle	2. BSEC Brake specific energy consumption	2. HC
3. Combustion Duration	3. Indicated Power	3. NOX
4. Ignition Delay	4.Meen	4. PM
		5. Smoke
		6. O2 %

$$\text{Break Power}=\frac{2\pi NT}{60}$$

where N - RPM of the Engine,
T - Torque produced by engine in NM

$$T_e=\frac{n_c{V}_d{P}_{me}}{2\pi n_r}$$

$n_c$ number of cylinder.
$V_d$ cylinder volumetric displacement.
$P_{me}$(pa) - Mean Effective Pressure.
$n_r$ - Number of crankshaft rotation for a complete engine cycle.