Design and Development of Low Cost I.C. Engine Based Waste Heat Recovery System

This study proposed a the new cost effective design of diesel exhaust waste heat recovery system (WHRS) for Bus rapid transport System (BRTS, Jaipur) and Stationary System and proposes a cost effective robust design that meets the principle design constraints for WHRS. In order to address various design constraints for WHRS while achieving the required performance of the system, numerical analysis and optimization was carriedout using CFD software Ansys FLUENT and Ansys WB (Parametric Study).Possible waste heat recovery system geometries studied that meets both Indian Pollution control standard and geometries constraints. Based on the numerical analysis, author proposed a new kind of WHRS that meets the performance specifications but is outside of the space constraints of BRTS. The WHRS perform at approximately 0.3 to 0.6 efficiency; providing 10 kW at ideal conditions. The overall length of the system is 1200 mm and the overall width is 550 mm. The weight of the heat exchanger is 100 kg; therefore, it does not meet the weight constraint. The overall cost of the WHRS is INR 15000 which is within budget for BRTS, Jaipur. Keywords— CFD, Low cost system, Optimization, WHRS.