Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
Numerical Analysis of an Unglazed Solar Pool Collector
Submission Author:
Felipe Venancio Mitkiewicz Silva , MG
Co-Authors:
Felipe Venancio Mitkiewicz Silva, Antonia Sonia Cardoso Diniz, Daniel Sena Braga, Lucas Faria, Elvis Mayk Chaves Barbosa, Vinicius Augusto Camatta Santana, Cristiana Brasil Maia
Presenter: Felipe Venancio Mitkiewicz Silva
doi://10.26678/ABCM.COBEM2019.COB2019-1007
Abstract
Solar pool heating systems are used to convert the sun’s electromagnetic radiation into heat to warm swimming pool’s water. Those systems are generally composed of a solar collector, a filter, a pump, and a flow control valve. In order to guarantee the quality, the unglazed solar pool collectors are tested by regulations and then ranked based on their thermal efficiency. The ABNT NBR 15747 standards regulate about those tests in Brazil. A real solar pool collector has been tested under those standards at the Pontifical Catholic University of Minas Gerais Solar Laboratory. The test and its results were the basis of this paper, which proposes a numerical analysis of the tested unglazed solar pool collector. The numerical analysis used computational fluid dynamics, based on finite volumes method, to simulate the same conditions. Therefore, the numerical results were validated by comparing with the experimental data. The numerical parameter used to validate was the outlet mean temperature, which differed only 0,1 degree Celsius from the experimental data.
Keywords
unglazed solar collector, Numerical analysis, solar thermal energy, CFD
