Thermal and Exergetic Analysis of a Solar Still

8th International Congress of Engineering Physics

物理学;工业技术

Chávez, S.^1 ; Terres, H.^1 ; Lizardi, A.^1 ; López, R.^1 ; Lara, A.^1

Universidad Autónoma Metropolitana, Unidad Azcapotzalco, Departamento de Energía, Área de Termofluidos, Col. Reynosa Tamaulipas, San Pablo

180, Mexico^1

关键词: Absorber plates;    Critical heat transfer;    Energy and exergy;    Energy and exergy analysis;    Exergetic analysis;    Exergetic efficiency;    Solar distillation;    Thermodynamic model;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/792/1/012009/pdf
DOI  :  10.1088/1742-6596/792/1/012009

学科分类：工业工程学

来源: IOP

【 摘 要 】

In this work an energy and exergy analysis of solar distillation process is presented. The analysis is based on the experimental observation of the simple basin type solar stills for 4 different initial volumes (5.5, 6.5, 7.5 and 8.5 L). Energy and exergy balance equations have been written for all components of the solar still including glass cover, brine and absorber plate. The thermodynamic models for the energy and exergy analysis are presented on the critical heat transfer correlations in literatures for the simple basin type solar still. The results show that maximum values are reached in the energy efficiency of 45.6, 41.5, 35.7 and 31.8%, however exergetic efficiency for maximum values are 7.5, 7.2, 7 and 5.4%, corresponding to volumes 5.5, 6.5, 7.5 and 8.5 L respectively.