跨度增大;随着边界角的增大,热流密度圆周分布曲线向圆周角90°方向平移,同时热流密度极大值降低.在太阳直射强度大致相同情况下,入口流速与入口温度对接收管表面对流换热与最大温差影响很大;同时变物性对流体对流换热影响也较大.
参考文献
[1] | D L Evans .On the Performance of Cylindrical Parabolic Solar Concentrators with Flat Absorbers[J].Journal of Solar Energy Engineering,1977,19:379-385. |
[2] | S M Jeter .Calculation of the Concentrated Flux Density Distribution in Parabolic Trough Collectors by a Semifinite Formulaiton[J].Journal of Solar Energy Engineering,1986,37(05):335-345. |
[3] | M F Modest.Radiative Heat Transfer[M].New York:Academic Press,Inc,2003 |
[4] | 王志峰.抛物跟踪式太阳高温集热器的研究[J].太阳能学报,2000(01):69-76. |
[5] | V Dudley;G Kolb;M Sloan et al.SEGS LS2 Solar Collector-Test Results.Report of Sandia National Laboratories,SANDIA94-1884[R].United States of America,1994. |
[6] | Agustin Manuel Delgado-Torres;Lourdes Garcia-Rodriguez .Comparison of solar technologies for driving a desalination system by means of an organic Rankine cycle[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2007(1/3):276-291. |
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