Browse Publications Technical Papers 2020-28-0327

Feasibility evaluation of alternate battery charging system with the help of Exhaust Gas driven Generator 2020-28-0327

Last decade in mobility industry has seen tremendous amount of technology disruption and evolution that happened at a pace never seen before. Emission of Green House Gases and ever degrading air quality have been at the helm of this evolution. I.C Engine driven automobiles though being current state of art, have faced challenges and stiff competition from EVs. In this context, many technologies ranging from Friction reduction, Right-sizing, Light-weighting, use of advanced materials, Thermal Management Systems, Advanced Exhaust Gas After Treatment Systems etc. have evolved and successfully improved the performance and contention of IC Engines. However this is not enough. It is well established that a big portion of fuel energy goes wasted in the form of exhaust gases. Some part of this waste energy is recovered with the help of Turbochargers. However, even after the use of Turbocharger, there is enough energy which still can be harnessed into useful work. This paper focuses on the idea of recovering the remaining exhaust gas energy by converting it into electrical energy with the help of turbine & DC Generator. This paper evaluates various layouts and potential of generating electrical energy which then can be used to charge battery. Through this idea, it is possible to reduce the alternator size which in turn would reduce parasitic losses from engine and result in positively impacting fuel consumption (BSFC reduction). At last the evaluation of the same would be done on a NEDC Cycle or a Standard Cycle to compare & estimate the overall improvement in efficiency of the system.


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