线性菲涅耳聚光镜场辐射量计算方法

杜春旭; 王普; 吴玉庭; 马重芳

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线性菲涅耳聚光镜场辐射量计算方法

更新时间：2025-12-10

- 线性菲涅耳聚光镜场辐射量计算方法
- CIESC Journal Issue S1, Pages: 179-184(2011)
- 作者机构：
  
  北京工业大学环境与能源工程学院，传热强化与过程节能教育部重点实验室，传热与能源利用北京市重点实验室,北京,100124
- 作者简介：
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- Online First：03 July 2011，
  
  Published：03 July 2011
- 稿件说明：
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杜春旭, 王普, 吴玉庭, et al. 线性菲涅耳聚光镜场辐射量计算方法[J]. CIESC Journal, 2011, (S1): 179-184.
DOI：

杜春旭, 王普, 吴玉庭, et al. 线性菲涅耳聚光镜场辐射量计算方法[J]. CIESC Journal, 2011, (S1): 179-184. DOI：

摘要

在聚光太阳能热利用设计时，有必要计算聚光装置倾斜镜面或孔径表面的太阳直接辐射。线性菲涅耳聚光反射装置是对连续抛物面聚光镜的一种离散化近似，该聚光装置中每一行反射镜面（简称镜元）均实时跟踪太阳，故每一镜元的太阳光入射角、跟踪倾角均时刻变化，这便使系统太阳辐射计算变得相对复杂。首先利用矢量分析，得到线性菲涅耳反射装置任一镜元的入射角计算公式，然后计算整个镜场的实时辐射通量，最后得到整个镜场在有效工作期间内的累积辐射量。通过对反射光在吸热器平面的偏移分析，得到线性菲涅耳聚光反射镜场的最佳塔高计算方法。

Abstract

It is necessary for calculating the solar beam radiation on the tilted mirror or aperture for designing of solar thermal utilization.Linear Fresnel reflector (LFR) can be thought that smooth linear optical reflector is broken into segments.Every mirror segment or row of this kind concentrator needs to track the sun real time and reflects the sunlight to fixed linear receiver.Therefore

the incidence angle and the direction of reflected sunlight and tracking tilt-angle of every mirror row consequentially vary throughout the year

which makes the optical analysis

especially the calculation of the solar beam radiation received by full mirror field

very complexity.This paper firstly derived the equations of incidence angle and tracking inclination angle by vector analysis

and then computed the instantaneous solar beam radiation of all mirror elements.Finally

cumulated irradiation of whole mirror field during the available work was obtained.The algorithm of optimal tower highness of LFR mirror field was derived by analyzing excursion of reflecting sunlight.

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