Energy analysis of solid waste fueled cogenerative organic rankine cycle for different working fluids

Abstract

The change of living conditions have been increased the energy need and its consumption significantly. Besides, reducing the primary energy source, increasing fuel price and the negative effects of fossil fuels to ecosystem and human health has obligated the developing and developed countries to find out alternative ways. Utilization of the solid waste as a hear source is an important solution for disposal of waste and to decrease the dependency of the countries to limited amount of primary energy source. In this study, the feasibility of a combined heat power (CHP) module using the Organic Rankine Cycle (ORC), with different calorific values as heat source in various working fluids (R600, Isopentane, R141b, R123, R134a, R32) was examined. Energy analysis was carried out in Engineering Equation Solver (EES) Program. The first law of thermodynamic was applied to Cogenerative Organic Rankine Cycle. The results showed that the wet fluids have the best performance while that of the dry fluids were comparatively low. The highest values of the thermal efficiency were seen in the case of wet fluid, R32 and followed by R134a for the overall system performance.