真空管平板集热器最小阳光入射角的一种证明及光学性能分析

A PROOF AND OPTICAL PERFORMANCE OF MINIMUM INCIDENT ANGLE OF SUNLIGHT INTO VACUUM TUBE FLAT-PLATE SOLAR COLLECTOR

本文推导和证明了一维跟踪情况下真空管平板集热器最小阳光入射角的表达式,并分析了它的光学性能。

In this paper,using one dimension tracing method the for mula of minimum incident angle of sun light for evaluating the thermal performance of evacuated tubular collectors was deduced.It is shown that the optical and thermal performance of this kind of collector are excellent.