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Influences of preheat biodiesel fuel on performance and emissions characteristic of diesel engine

Ahmad Tajuddin, Ahmad Syukri (2015) Influences of preheat biodiesel fuel on performance and emissions characteristic of diesel engine. Masters thesis, Universiti Tun Hussein Onn Malaysia.


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Biodiesel is a alternative fuel similar characteristic to diesel fuel. Biodiesel can produce from vegetable oil, animal fat and waste cooking oil. The reduction of fossil fuel causes the increasing using the biodiesel fuel. However, using biodiesel fuel also has effected on engine performance and exhausts emission. Biodiesel are not efficiently in cold weather and this is biodiesel major problem. Viscosity has influences the fuels flow rate and poor fuel atomization during the combustion process. The aim of this study was to determine the effects of biodiesel to temperature and is carried out using of room temperature, 40°C and 60°C. To recommended the biodiesel blending ratio and biodiesel temperature that optimizes the engine performance and lower exhaust emissions. The performance data taken in this study is torque, brake power, brake mean effective pressure and fuel consumption. And for emission data taken in this study is CO, CO2, NOx and HC. There are three types of biodiesel oil is used to carry out this study (crude palm oil, waste cooking oil and jatropa oil). While there are 3 blending ratio that has been made towards biodiesel (5%, 10% and 15%) except for crude palm oil biodiesel for which there is additional another type of blending ratios provided for carrying out this study (20%). A single cylinder 4-stroke engine used for this study by setting two different load of 0% and 50%. Experiments were also carried out on standard diesel as a reference in this study. The results of this study have shown that the heating temperature 40oC and 60oC in CPO10 produce the highest brake power as well as torque and BMEP. For the experimental results of exhaust emission, the preheated temperature affects the degradation of the exhaust emission. The study also examined the inside of the combustion chamber and as are result have found that preheat biodiesel has increased the pressure on the cylinder combustion chamber. The result may help in improving the biodiesel technology.

Item Type: Thesis (Masters)
Subjects: T Technology > TP Chemical technology > TP315-360 Fuel
Depositing User: Normajihan Abd. Rahman
Date Deposited: 29 Feb 2016 06:24
Last Modified: 29 Feb 2016 06:24
URI: http://eprints.uthm.edu.my/id/eprint/7702
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