• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy Exploration & Exploitation >Experimental investigation of the receiver of a solar thermal dish collector with a dual layer, staggered tube arrangement, and multiscale diameter
【24h】

Experimental investigation of the receiver of a solar thermal dish collector with a dual layer, staggered tube arrangement, and multiscale diameter

机译：具有双层，交错管布置和多尺度直径的太阳能热电盘收集器接收器的实验研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A new experimental model is proposed and tested to enhance the ability of receivers of solar thermal dish collectors in absorbing solar energy. An innovative model consisting of a dual layer, staggered arrangement, and multiscale diameter tubes is established. The enhancement augments the capability of the solar receiver of the collector to transform solar energy to thermal energy within the heat transfer fluid. The new design depends on the exploitation of the dead regions of the solar receiver, that is, surfaces with weak solar energy absorption which include the space between the pipes and the terminal sides of the pipes. The surface areas of the circular pipes in these regions are almost parallel to the solar energy radiation, which leads to a reduction in the ability of the tube to absorb solar energy. The design was validated through five receiver (Dcr) models for solar thermal dish collectors, in addition to the model base (which has single layer). Each model consists of a two-layer staggered arrangement and tubes with four different staggered diameter ratios (SDr) between the two layers. Each of them has an octagonal shape and consists of three serial paths of copper tubes; each path consists of a bank of parallel tubes. The results show a noteworthy increase in the ability of the receiver to absorb solar energy and greater with model (Dcr5) which SDr equal (0.269) than for a plain tube collector. The enhancement leads to an increase in the thermal efficiency eta th and exergetic performance eta ex, that equal (78.8%) and (19.8%) respectively at (0.07 kg/s). Furthermore, the pressure difference, and efficiency evaluation criterion was estimated to evaluate dish collector receivers.
机译：提出了一种新的实验模型和测试，以提高太阳能热盘收集器的能力吸收太阳能的能力。建立了一种由双层，交错布置和多尺度直径管组成的创新模型。增强增强了集电器的太阳能接收器的能力将太阳能转化为热传递流体内的热能。新的设计取决于太阳能接收器的死区的开发，即弱太阳能吸收的表面，其包括管道和管道的端子侧之间的空间。这些区域中的圆形管的表面区域几乎平行于太阳能辐射，这导致管吸收太阳能的能力的降低。除了模型底座（具有单层）之外，还通过五个接收器（DCR）模型进行了验证了设计，用于太阳能热盘收集器。每个模型由两层交错装置和两层不同的交错直径比（SDR）组成。它们中的每一个都具有八边形形状，包括三个铜管串行路径;每个路径由一块平行管组成。结果表明，接收器吸收太阳能和更大的模型（DCR5）的能力增加了值得注意的增加（DCR5），该模型（DCR5）相等（0.269）而不是普通管收集器。增强导致热效率的η和exergets性能ETA EX的增加，即分别在（0.07kg / s）和（19.8％）和（19.8％）中的eRA ex。此外，估计压力差和效率评估标准来评估洗碗收集器接收器。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号