"Additional Power Generation from the Exhaust Gas of Diesel Engine by Bottoming Rankine Cycle"

Saiful Bari, School of Engineering, University of South Australia

Exhaust gas from diesel engines can be a good source of energy to run a bottoming Rankine cycle to increase the overall efficiency of the engine as it contains a significant portion of input energy. In this research, an automotive diesel engine was tested to estimate the available energy in the exhaust gas. Using optimized heat exchangers additional power was produced. The proposed heat exchanger was able to generate 23.7% additional power at 30 bar working pressure which resulted in more than 20% improvement of brake specific fuel consumption. It was also found that counter flow orientation of the heat exchanger is most suitable for this application. Thus, waste heat recovery technology has a great potential for saving energy, improving overall engine efficiency and reducing toxic emission per kW of power produced.

Dr. Saiful Bari obtained his Masters in “Renewable Energy” in 1989 and later completed his PhD in “Alternative Fuels in Diesel Engine” in 1991 from the Reading University, UK. He has over 25 years of experience in teaching and research in the area of Internal Combustion Engines, their fuels and emissions. Dr. Bari is currently working on two major projects (1) "Near zero particle emissions from diesel engines through ionized particles and combination of electro-static-charged and conventional filters” and (2) “Development of waste energy recovery technology”. Dr. Bari has published over 100 papers in various International Journals and Conferences. He has also supervised over 20 postgraduate students and completed over $2 million projects.

Dr. Bari is currently the Program Director of the School of Engineering at the University of South Australia. He is the member of professional association of Engineers Australia, American Society of Mechanical Engineers (ASME) and Society of Automotive Engineers (SAE). Dr. Bari is the reviewer of over 16 International Journals and has organized numerous International Conferences.

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