TY  - JOUR
AU  - Gebremichael, Fana Gebremedhin 
AU  - Chidamoio, Joao Fernando 
PY  - 2024
TI  - Experimental Study of Diesel Engine Generator Performance and Emission Characteristics Using a Mixture of Jatropha Oil and Rubber Seed Oil Biodiesels Along a Two-Step Transesterification
JF  - American Journal of Engineering and Applied Sciences
VL  - 17
IS  - 3
DO  - 10.3844/ajeassp.2024.126.135
UR  - https://thescipub.com/abstract/ajeassp.2024.126.135
AB  - This study investigates the performance and emission properties of engine-generator powered using various dual biodiesel mixes prepared from two inedible feedstock jatropha and rubber. Jatropha and rubber oils had high acid values, which were 13.96 and 27.91 mg KOH/g, respectively. Therefore, a two-step transesterification process was conducted to lower the acid value to 0.28 and 0.42 mg KOH/g for jatropha and rubber, respectively. The various physicochemical properties of biodiesels were compared with standards and diesel. The engine generator performance and emissions of various mixed biodiesel-diesel blends (BC10, BC20, BC30, and BC40) were investigated at varying loads and constant speeds (3000 rpm) and compared with B0, BA20, and BB20 biodiesel blends. In general, a blend of jatropha and rubber biodiesel reduced density and viscosity when compared to rubber biodiesel and improved ignition quality when compared to jatropha biodiesel. Dual biodiesel blends reduced CO2, CO, and HC emissions in comparison to diesel, while NOX emission was higher. The results of the experiments show that better engine-generator performance and fuel exhaust emissions were seen with the BC20 followed by BC40 and can be utilized as a substitute fuel in diesel engine generators without requiring any modifications