Enhancing compression ignition engine performance using biodiesel/diesel blends and HHO gas |
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| Affiliation: | 1. School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China;2. Tsinghua University Suzhou Automotive Research Institute, Suzhou 215200, China;1. Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. Department of Mechanical Engineering, Rajshahi University of Engineering & Technology (RUET), Rajshahi 6204, Bangladesh;3. School of Mechanical and Manufacturing Engineering, University of New South Wales, Kensington, 2033 NSW, Australia;1. İskenderun Technical University, Department of Mechanical Engineering, Hatay, Turkey;2. İskenderun Technical University, Department of Mechatronics Engineering, Hatay, Turkey;3. İskenderun Technical University, Department of Electrical and Electronical Engineering, Hatay, Turkey;1. Department of Industrial Engineering, Hijjawi Faculty of Engineering, Yarmouk University PO.Box 566, Irbid 21163 Jordan;2. Industrial Engineering Department School of Engineering, The University of Jordan, P.O. Box 11942, Amman, Jordan;1. School of Electric Power, North China University of Water Resources and Electric Power, Zhengzhou 450045, PR China;2. Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom;3. Shanghai Nuclear Equipment Test Center Co. Ltd., Shanghai 201400, PR China;4. Department of Physiology, College of Medicine and King Khalid University Hospital, King Saud University, Medical City, PO Box-2925, Riyadh 11461, Saudi Arabia;5. Department of Botany and Microbiology, College of Science, King Saud University, PO Box -2455, Riyadh 11451, Saudi Arabia;6. Chair of Biosystems Engineering, Institute of Forestry and Engineering, Estonian University of Lifescience, Kreutzwaldi 56, 51014 Tartu, Estonia;7. School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam;8. Emerging Materials for Energy and Environmental Applications Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam |
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| Abstract: | The proposed experimental study aims to investigate the effect of adding HHO gas with a constant flowrate (50% of the engine capacity) on the thermal efficiency for six different Biodiesel/diesel blends, which are 0B, 10B, 15%B, 20B, 25B and 30B. For all the studied fuelling scenarios, it was decided to mix HHO gas with the inlet air perpendicularly on the air streamline by a constant flowrate aiming to enhance the thermal efficiency of the engine. The study assumed maintain the rotational speed of the engine is constant (four different speeds) while varying the engine torque. The experimental results were recorded for four different rotational speeds of the engine, which are 1500, 1750, 2000 and 2250 RPM. Obtained results investigated that, increasing biodiesel content resulted in reducing the engine's brake thermal efficiency and increasing its brake specific fuel consumption due to the relatively lower heat content of the biodiesel comparing with conventional diesel. Adding HHO gas to the engine resulted in enhancing the thermal efficiency due to its high heat content and it was observed that; 20B with HHO gas supply provided the highest brake thermal efficiency of the engine as well as reducing its brake specific fuel consumption. |
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| Keywords: | Diesel Biodiesel HHO-gas Internal combustion engines HHO dry cell |
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