Experimental Study on the Production of Karanja Oil Methyl Ester and Its Effect on Diesel Engine

Abstract

Fast depletion of fossil fuel resources forces the extensive research on the alternative fuels. Vegetable oils edible or non edible can be a better substitute for the petroleum diesel. Karanja, a non edible oil can be a potential source to replace the diesel fuel. To investigate the feasibility of Karanja oil as an alternative diesel fuel, its biodiesel was prepared through the transesterification process. The Biodiesel was then subjected to performance and emission tests in order to assess its actual performance, when used as a diesel engine fuel. The data generated for the 20, 50 and 100 percent blended biodiesel were compared with base line data generated for neat diesel fuel. Result showed that the Biodiesel and its blend showed lower thermal efficiency. Emission of Carbon monoxide, unburned Hydrocarbon and smoke was found to be reduced where as oxides of nitrogen was higher with biodiesel and its blends. Keywords: alternate Diesel fuel; Biodiesel; Karanja oil methyl ester; performance and emission

Prospect ofPongamia pinnata(Karanja) in Bangladesh: A Sustainable Source of Liquid Fuel

“…It was found that B100 KOME biodiesel reduces about 73-94% CO emission [66]. Besides, [52,87,89] agreed that KOME biodiesel reduces the CO emission as illustrated in Figure 8 [52]. Numerous studies also showed that biodiesel reduces PM emission in CI engine [62-69, 80-83, 85, 94, 95, 101-107, 119-123].…”

“…However, astonishing power increase due to use of pure biodiesel was noticed by [85,86]. Karanja methyl ester (KOME) B100 which reduces the brake thermal efficiency of CI engine was investigated by some researcher [87,88]. Minor difference between the engine efficiency of using KOME and pure diesel was found in [89,90].…”

“…It is predominantly investigated that use of biodiesel instead of pure diesel resulted in reduction of HC emission [63, 65, 67-69, 80-82, 84-86, 95, 100-105, 107-112, 117, 118, 121-123, 126, 127]. However, a very few number of Diesel B100 Figure 9: HC emission of CI engine with diesel fuel and B100 KOME [87].…”

Performance Characteristics of a Diesel Engine Fuelled with Biodiesel Produced from Mahua Oil Using Additive

“…Transesterification is a reversible reaction between triglyceride and alcohol in presence of catalyst to produce glycerol and mono alkyl ester which is known as biodiesel [9,10]. Weight of the mono alkyl ester is one third of that of typical oil and therefore has lower viscosity.…”

“…Alkali (NaOH, KOH), acid (H 2 SO 4 , HCL) or enzymes (lipase) catalyzed reaction. Acid catalyzed transesterification is most commonly used process because it is a reversible reaction [10]. In the transesterification process methanol and ethanol are more common.…”