Thermodynamic Analysis and Optimization Study of Organic Rankine Cycle Usage with Internal Combustion Engine Waste Heat
This paper presents a organic Rankine Cycle (ORC) usage analyze as a heat recovery system for exhaust gas heat loss of Internal Combustion Engine (ICE) which is TCG2032 model manufactured by MWM brand of Caterpillar Energy Solutions GmbH. Mathematical model was developed for basic ORC and depending on seven different working fluids which are R113, R141b, R134a, R123, R245fa, n-pentane and n-butane to represent different fundamental classes. The maximum net power output is the foremost evaluation criterion to analyze heat recovery system effectiveness. The thermal analysis results reveal that the R141b is the most efficient working fluid. R134a is one of the wet type fluid and it has the lowest net output power as comparatively from the other selected fluids. Also analysis shows that the 6-14% increase of the overall efficiency appear possible with ICE-ORC combined cycle in according to single engine, and as a result of that 400-700 kW reduce can be achieved for the fuel energy consumption.
Keywords - Organic Rankine Cycle, Internal Combustion Engine Heat Recovery, Energy and Exergy Analysis of Organic Rankine Cycle, Optimization Study of Organic Rankine Cycle.