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首页> 外文期刊>Applied thermal engineering: Design, processes, equipment, economics >Experimental investigation of absorbed flux circumferential distribution of an absorber with U-pipe tube exchanger for Parabolic Trough Collectors
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Experimental investigation of absorbed flux circumferential distribution of an absorber with U-pipe tube exchanger for Parabolic Trough Collectors

机译：抛物线槽收集器U型管道交换器吸收器的吸收磁通圆周分布的实验研究

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Graphical abstractDisplay OmittedHighlights?The effect of the circumferential distribution of absorbed flux has been studied.?Three positions of the U-pipe exchanger for PTC have been proposed.?Temperatures evolution of various positions of U-pipe exchanger are investigated.?An efficiency comparison for all positions of the U-pipe exchanger was reported.AbstractIn this work, an experimental study on a parabolic trough collector with U shaped exchanger has been investigated for normal incidence radiation. This study was focused on the effects of the focal length (as well as the rim angle) and the diameter of the absorber on the flux circumferential distribution. Thus, the heat losses related to the dimensioning of the U-pipe position were studied. The inlet, outlet, absorber and ambient temperatures as well as instantaneous beam normal radiation were reported. Our analysis concerned the concentrated solar flux distribution on the circumferential absorber for different rim angles and diameters, and it relation with the position of U-pipe. We noticed a higher thermal efficiency of about 0.4 of the Parabolic Trough Collector for the focal length 0.19?m (parallel position of exchanger). These first results remain enough interesting to investigate advanced Parabolic Trough Collector prototype.]]>
机译：<！[cdata [ 图形摘要 显示省略 突出显示 < CE：简单段ID =“SP0010”View =“全部”> ？ 已经研究了吸收通量的圆周分布的效果。 ？ PTC的U-Pipe交换机的三个位置已经pr oposed。 ？ 研究了U-Pipe交换机各种位置的温度。 ？ 报告了U-pipe交换机所有位置的效率比较。 抽象 在这项工作中，研究了对U形式交换器的抛物线槽收集器进行了实验研究，用于正常发病率辐射。该研究专注于焦距（以及边缘角）的影响和吸收器的直径在助焊剂周向分布上。因此，研究了与U形管位置的尺寸相关的热损失。报道了入口，出口，吸收器和环境温度以及瞬时束正常辐射。我们的分析涉及不同轮辋角度和直径的圆周吸收器上集中的太阳能通量分布，以及与U型管的位置相对。我们注意到焦距为0.19μm（交换器的平行位置）的抛物线槽收集器的较高的抛物线槽收集器的热效率。这些第一个结果对调查高级抛物线槽收集器原型来说仍然有趣。 ]]>

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