03347nam a22001337a 4500 56164 56161 Pirbux, urf Waqas 12MME01 Supervisor - Prof.Dr. Liaquat Ali Memon Comparative Analysis on Compression Ignition (CL) Engine by Using Diesel and Bio-Diesel Blends with Methanol and Ethanol Additives (ME Theses) Nawabshah: QUEST, 2016. 69P, : ABSTRACT Increasing urbanization of the world leads to raising the demands of Fossil fuel. Crude oil based products are limited natural resources. These limited resources of crude Oil reservoirs are in specific regions of the world. Those countries, which do not have fossil fuel reservoirs, are facing energy crisis. Before the energy resources are exhausted, it is better to move on alternative resources. As concerned to the alternative fuel. Biodiesel is one of them, In this study, Engine performance, engine exhaust particulate matter emission, sound pressure level and endurance test have been carried out using biodiesel blend and diesel fuel (DF). The endurance test has been carried out tor -SO hours of running. In this work, the single cylinder horizontal tyse diesel engine has been used without any modification. To analyze the engine pertOrmance. three fuel samples have been used, such as B20 (Jatropha biodiesel 20%+Diesel 80%). B15ME5 (15% of bidiesel+2.5% of methanol and of ethanol + +80% diesel) and diesel fuel (DIOO) as a baseline. All parameters of the engine performance, exhaust emission and sound pressure level were calculated at constant RPM of 1540 and variable loads 0.0 to 2.0 Kg-m at an interval of 0.1 K;-m. Whereas the endurance test result has been carried out at constant load of I .0 K:- m at constant RPM of 1540. The sound pressure level from the engine are also calculated from three different locations front, left and back. From results it was found that, the brake specific fuel consumption (BSFC) of biodiesel-blend and biodiesel-blend with additive was decreasing by increasing brake power on engine. In the case of engine exhaust emission four different ranges of particulate matter sizes from PM 1.0, 2.5, 7.0 and 10 were determined. The biodiesel-blend with additive reduces engine exhaust particulate matter (PM) emission compared with diesel (DIOO) and biodiesel blend (B20). The sound pressure level of all blended fuel found to be reduced as compared to diesel fuel (DF). In endurance test, the visual inspection Of injector surface was carried out for analysis Of deposition Of aromatic compounds on injector surface for all fuel samples (DIOO, B20. and BIS,ME5). Detailed result of depositions has been taken by electron microscopic techniques. Hiere are different aromatic compounds were found on injector surface, The maximum deposition of carbon was found on diesel fuel injector 80.39%, whereas biodiesel-blend (B20) has 75.76% and (B15MlF,5) 79.64% respectively. Engine wear and contamination of aromatic compounds reduces kinematic viscosity which reduces engine lite Finally, the lower (B.SI'C) of leads to reduces lower particulate matter emission, sound pressure level, and depositions of injectors surface as compared to (DE). Department Of Mechanical Engineering https://tinyurl.com/3zka6y72 THESIS 0 0 0 0 RESEARCH RESEARCH 2016-11-28 0 MP/13-124 2016-11-28 00:00:00 THESIS 0 0 0 0 RESEARCH RESEARCH 2018-10-02 0 MP/29-327 2018-10-02 00:00:00 2018-10-02 THESIS