Advanced Exergy and Exergoenvironmental Analysis of an Integrated Power and Refrigeration System

ABSTRACT This study looks at the performance of a system that combines an organic Rankine cycle (ORC) and an ejector refrigeration system (ERC) using advanced exergy and exergoenvironmental-based methods to find ways to make it better and to see how the different parts of the system work together. There are two categories for the exergy destruction rate: endogenous/exogenous and unavoidable/avoidable parts within the components. In recent times, the potential application of low-temperature heat sources has been a growing concern in several research applications. As a result, there has been a lot of interest in the combined ORC-ERC because of its encouraging qualities. This study conducts an advanced energy analysis on the combined system that uses low-temperature internal combustion engine waste power. The turbine, condenser, ejector, heat exchanger 1 (HE1), and HE2 exhibit the highest rate of exergy destruction. The plant produces a total of 77.41 kW, 191.1 kW of product exergy, fuel exergy, and 157.09 kW of exergy destruction under actual working conditions at a TIP of 22 bar. The relative environmental impact (EI) difference parameter determines each device’s potential to minimize environmental consequences. The endogenous EI is greater than the exogenous EI for most components. Internal losses produce endogenous EI, which can be adjusted.