Performance evaluation of waste palm oil diesel as alternative diesel engine fuel
1 Department of Biomedical Engineering, Federal College of Dental Technology and Therapy, Trans Ekulu, Enugu, Nigeria.
2 Department of Mechanical and Production Engineering, Enugu State University of Science and Technology, Enugu, Nigeria.
Research Article
International Journal of Engineering Research Updates, 2022, 03 (01), 025–032.
Article DOI: 10.53430/ijeru.2022.3.1.0042
Publication history:
Received on 02 June 2022; revised on 21 July 2022; accepted on 23 July 2022
Abstract:
The paper aims to evaluating the performance of palm oil based- waste cooking oil biodiesel as alternative diesel engine fuel. The methodology of the study was experimental. The waste oil was two-step transesterified and chemically analyzed to establish physico-chemical properties of biodiesel. The test fuels were evaluated for brake specific fuel consumption (BSFC) and brake thermal efficiency (ηth) at varying brake power on test rig consisting of Mazda engine coupled with a power take off propeller inserted in the power take off shape to Froude hydraulic dynamometer. The results showed that at all brake power, the BSFC decreased as strength of diesel increased in the blend. At brake power of 15KW, brake specific fuel consumption (kg/KWh) for BD25, BD50, BD75, BD100 and AGO were 0.41, 0.40, 0.38, 0.44 and 0.37 respectively. The brake thermal efficiency, at that instant of brake power of 15KW, were 22.2, 21, 20.8, 23.8 and21.5 for BD25, BD50, BD75, B100 and AGO in that order. As the load increased, brake thermal efficiency (ηth) increased for all the test fuels utilized while the brake specific fuel consumption decreases. These characteristics were closely associated with physico-chemical properties of the biodiesel. In conclusion, waste palm oil biodiesel demonstrated characteristics of lean, cleaner but high performance fuel in IC engine.
Keywords:
Biodiesel; Brake specific fuel consumption; Brake thermal efficiency; Test rig; Blends; Dynamometer
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