Performance evaluation of a solar ejector-vapour compression cycle for cooling application

Tunisia-Japan Symposium: R&D of Energy and Material Sciences for Sustainable Society

能源学;材料科学;政治学;社会学

Megdouli, K.^1 ; Elakhdar, M.^2 ; Nahdi, E.^2 ; Kairouani, L.^2 ; Mhimid, A.^1

Laboratoire d'Études des Systèmes Thermiques et Énergétiques, Ecole National d'Ingénieur de Monastir, Avenue Ibn El Jazzar, Monastir

5019, Tunisia^1

Unité de Recherche Energétique et Environnent, Ecole National d'Ingénieur de Tunis, 37 Le Belvédère, Tunis, Tunisia^2

关键词: Coefficient of Performance;    Compression system;    Empirical correlations;    Performance;    Performance evaluations;    Refrigeration cycles;    Typical meteorological year;    Vapour compression cycles;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/596/1/012004/pdf
DOI  :  10.1088/1742-6596/596/1/012004

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This study deals with the performance of the ejector-vapour compression cycle assisted by solar. The effect of operating conditions on the combined cycle performance is examined. Also, a comparison of the system performance with environment friendly refrigerants (R134a, R600, R123, R141b, R142b, R152a, R290, and R245fa) is made. This performance is calculated using an empirical correlation. Thermodynamic properties of functioning fluids are obtained with package REFPROP 8. Using the typical meteorological year file containing the weather data of the city of Tunis, the system performance is computed for three collector types. The theoretical results show that the R290 offers the highest coefficient of performance, COP=3.75, for generator temperature TB 78°C, condenser temperature Tc 30°C and the intercooler temperature Te 15°C.