Optimum Installation Inclination of Solar Vacuum Tubular Collector in Lhasa

Author:

Hang Zou,Xin Liu,Enshen Long,Zhanqiang Liu

Abstract

Abstract It is important to accurately design the installation inclination of solar collector for improving the utilization rate. This paper selected Lhasa area as a typical city which was rich in solar energy, setting a mathematical model for energy collection of vacuum tube collector to dynamically analyse the south towards, 0°∼90° angle of solar radiation on the surface of the collection on 8760 hours. As the results showed: the ability of the vacuum tube collector to collect solar reflection, scattering and direct radiation varied with the installation inclination a lot. When the inclination angle was 90, the maximum annual reflection radiation value was collected by the vacuum tube collector; when the inclination angle was 0, the maximum annual scattering radiation value was collected; when the inclination angle was local latitude, the maximum annual direct radiation value was collected; direct radiation in Lhasa was the main factor, so the maximum installation inclination of solar energy collected during the whole year and heating season was close to the local latitude.

Publisher

IOP Publishing

Subject

General Engineering

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