• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of green energy >Improving performance of a trapezoidal-trough thermosyphon solar collector using peripherally wing-cut swirl generator
【24h】

Improving performance of a trapezoidal-trough thermosyphon solar collector using peripherally wing-cut swirl generator

机译：采用外围翼型旋流发电机提高梯形槽热水滤热烃太阳能收集器的性能

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

In this present study, the performance of a newly modified solar collector named trapezoidal-trough solar collector (Tra-trough) has been examined using peripherally wing-cut swirl generator (PSG). The experiment has been executed at Government College of Engineering, Salem, Tamilnadu, India (Latitude: 11?66?N and Longitude: 78?15?E) with three different wing shapes including PSG with triangular wings (PSG-Tri), rectangular wings (PSG-Rec) and trapezoidal wings (PSG-Tra). The obtained results are contrasted with plain tube Tra-trough (TT-plain) solar collector under the same working condition. The experimental trials are made by keeping swirl ratio (Y = 3), wing-span ratio (b/W = 0.3) and wing-chord ratio (d/W = 0.4) as constant. The results obtained from the TT-plain are verified with the fundamental equations and found the deviations within ?11.21% for Nusselt number and ?8.24% for friction factor. From the experimental result, the PSG provides higher heat transfer rate over the TT-plain with/without typical swirl generator (TSG). The results also exposed that the PSG with trapezoidal wings (PSG-Tra) offers higher heat transfer rate and thermal efficiency than those given by other type of wing shapes. The thermal performance of trapezoidal wings (PSG-Tra) is enhanced up to 137% over the TT-plain. In addition, correlations for predicting the Nusselt number and friction factor have been developed. The deficiency of the predicted value for Nusselt number and friction factor are within ?10.31% and ?11.21%, respectively.
机译：在本研究中，使用外围翼切割旋流发电机（PSG）检查了名为梯形槽太阳能收集器（Tra-Trough）的新改性太阳能收集器的性能。该实验已经在政府工程学院，塞勒姆，达米尔纳德邦，印度（纬度：11？66？N和经度：78？15？e），其中三种不同的翼形状，包括普通翅膀（PSG-TRI），矩形翅膀（PSG-REC）和梯形翅膀（PSG-TRA）。所得结果与平普管Tra-rit（Tt-Plain）太阳能收集器对比相同的工作条件。通过保持涡流比（Y = 3），翼延率（B / W = 0.3）和翼弦比（D / W = 0.4）作为恒定来制备实验试验。从TT-PLAP获得的结果用基本方程式验证，发现何时遇到的摩擦系数11.21％的偏差，摩擦因子8.24％。从实验结果中，PSG在带/无典型的旋流发生器（TSG）上提供更高的传热速率。结果还暴露于具有梯形翼（PSG-Tra）的PSG提供比其他类型的翼形状给出的传热速率和热效率更高。梯形翅膀（PSG-TRA）的热性能在TT平原上增强高达137％。另外，已经开发了预测营养数和摩擦因子的相关性。营养数量和摩擦因子的预测值的缺陷分别为10.31％和？11.21％。

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