Comparative Study of Conventional and Proposed Organic Flash Cycle Using Waste Heat Recovery System

Abstract

Organic Rankine cycle, Kalina cycle, organic flash cycle, etc., can be used for power generation using waste heat recovery. An organic flash cycle has been proposed in place of the existing flash cycle to augment the power. The investigation is carried out theoretically, with MATLAB modeling and fluid properties imported from the cool prop kit. Then, using R245fa as the working fluid, a distinction is made between the conventional and proposed designs. To establish the most effective conditions for the power plant, thermodynamic modeling and optimization were used. By increasing the working fluid in the turbine using a flasher, organic flash cycle improves the efficiency and net power output produced from the power plant. The findings show that the proposed organic flash cycle achieves 113% (80 °C) to 29% (150 °C) improvement in efficiency compared to conventional organic flash cycle. Also, as compared to the existing cycle, the proposed organic flash cycle achieves a 67% (80 °C) to 102% (150 °C) increase in specific power output.