Conversion of solar radiation using parabolic mirrors

Inżynieria Ekologiczna

卷:18

Jolanta Fieducik¹ 

[1] Uniwersytet Warmińsko-Mazurski w Olsztynie, ul. Oczapowskiego 11, 10-900 Olsztyn;

关键词: solar radiation;    parabolic reflector;    energy balance;   

DOI  :  10.12912/23920629/74964

来源: DOAJ

【 摘 要 】

The use of solar energy is a promising source of renewable energy to cover the energy needs of our society. The aim of the study will be to analyze the possibility of converting solar energy using parabolic reflectors to the heat energy needed to meet the needs of hot water for a family of 4 people. This study presents simulations of the use of solar radiation using radiant concentration systems. The parabolic mirror directs the concentrated beam of sunlight onto a tube located in the focal plane, which is filled with water that under the influence of solar radiation heats up. This article assumes constant mirror geometry and tube cross section, while simulation is performed for different coefficients. For calculations it was assumed that the reflection coefficient of sunlight from the mirror r is variable and an analysis of its effect on the amount of heated liquid is made. The radiation absorption coefficient across the tube surface was determined by a, the thermal surface emissivity coefficientwas determined as e and the simulations were performed at variable values for the amount of heated liquid. The calculations and their analysis show that, with appropriately chosen coefficients, it is possible to meet the needs of a 4-person family in warm water using the proposed installation in Poland.

【 授权许可】

Unknown