Exergy and Exergoeconomic Analysis of a Cogeneration Hybrid Solar Organic Rankine Cycle with Ejector

Entropy

Jigar Chudasama¹  Tatiana Morosuk¹  Bourhan Tashtoush² 

[1] Institute for Energy Engineering, Technische Universität Berlin, Marchstr. 18, 10587 Berlin, Germany;Mechanical Engineering Department, Jordan University of Science and Technology, Irbid 22110, Jordan;

关键词: exergy analysis;    economic analysis;    exergoeconomic analysis;    ejector refrigeration cycle;    organic Rankine cycle;   

DOI  :  10.3390/e22060702

来源: DOAJ

【 摘 要 】

Solar energy is utilized in a combined ejector refrigeration system with an organic Rankine cycle (ORC) to produce a cooling effect and generate electrical power. This study aims at increasing the utilized share of the collected solar thermal energy by inserting an ORC into the system. As the ejector refrigeration cycle reaches its maximum coefficient of performance (COP), the ORC starts working and generating electrical power. This electricity is used to run the circulating pumps and the control system, which makes the system autonomous. For the ejector refrigeration system, R134a refrigerant is selected as the working fluid for its performance characteristics and environmentally friendly nature. The COP of 0.53 was obtained for the ejector refrigeration cycle. The combined cycle of the solar ejector refrigeration and ORC is modeled in EBSILON Professional. Different parameters like generator temperature and pressure, condenser temperature and pressure, and entrainment ratio are studied, and the effect of these parameters on the cycle COP is investigated. Exergy, economic, and exergoeconomic analyses of the hybrid system are carried out to identify the thermodynamic and cost inefficiencies present in various components of the system.

【 授权许可】

Unknown