Combustion and Emission Characteristics of Variable Compression Ignition Engine Fueled with Jatropha curcas Ethyl Ester Blends at Different Compression Ratio

Table 1

Comparison of fuel properties of different fuels.

Fuel properties	Diesel	Jatropha oil	Ethyl Ester	Jatropha Ethyl Ester Blends				Test Method
				B10	B20	B30	B40
Viscosity at 37°C, cS	4.38	38.33	7.33	5.16	5.66	5.83	6.00	D-445
Density at 37°C, g/cc	0.832	0.931	0.875	0.843	0.850	0.856	0.861	D-1298
Calorific value, MJ/kg	42.90	32.62	35.77	41.47	40.39	39.52	39.08	D-4868
Cloud Point, °C	0.5	8	1.7	0.7	0.8	1.3	1.5	D-2500
Pour point, °C	−7.8	4	−2.8	−7.2	−6.8	−6.8	−5.3	D-97
Flash Point, °C	58	287.7	111.7	61.7	68.7	76.3	83.7	D-93