• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Sweeping gas membrane evaporative cooling for the enhanced performance of vapour compression refrigeration.
【24h】

Sweeping gas membrane evaporative cooling for the enhanced performance of vapour compression refrigeration.

机译：清扫气膜蒸发冷却技术，提高了蒸气压缩制冷的性能。

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

A sweeping gas membrane evaporative (SGME) cooling system was developed to remove heat from the condenser of a vapour compression chiller. The chiller was designed for hot environments and could only achieve a coefficient of performance (COP) of 1.0 using an air-cooled condenser. In this work, the condenser was modified to have circulating water absorb heat, which was then cooled in membrane modules by evaporation across a hydrophobic membrane into an air stream. Steady-state operation of the chiller was achieved with the SGME system. Increasing either air flow or water circulation rate increased the COP of the chiller, which reached a value of 1.83 with an optimal heat load of 435 W. The SGME system was then compared to cooling towers, a conventional method of evaporative heat removal. It was found that the SGME system provided more heat removal per unit volume and per unit of air flow than any investigated cooling tower. 89% of the heat removal was attributed to evaporation, and only 1.5% of the water entering the module was lost to evaporation, making the system more compact and efficient than towers. The sweeping gas membrane evaporation system was superior to both air-cooled condensers and to cooling towers.
机译：开发了吹扫气膜蒸发（SGME）冷却系统以从蒸气压缩式冷却器的冷凝器中除去热量。该冷却器是为炎热环境设计的，使用风冷冷凝器只能达到1.0的性能系数（COP）。在这项工作中，对冷凝器进行了改造，使循环水吸收热量，然后通过在疏水膜上蒸发进入空气流而在膜组件中冷却。 SGME系统实现了制冷机的稳态运行。增加空气流量或水循环速率都会提高冷却器的COP，该系数达到1.83，最佳热负荷为435W。然后将SGME系统与冷却塔进行比较，这是传统的蒸发除热方法。发现与任何研究的冷却塔相比，SGME系统每单位体积和每单位气流提供更多的热量。 89％的热量归因于蒸发，只有1.5％进入模块的水因蒸发而损失，使该系统比塔式系统更紧凑，更高效。吹扫气膜蒸发系统优于风冷冷凝器和冷却塔。

著录项

  • 作者

    Smith, Benjamin D.;

  • 作者单位

    University of Ottawa (Canada).;

  • 授予单位 University of Ottawa (Canada).;
  • 学科 Engineering Chemical.
  • 学位 M.A.Sc.
  • 年度 2010
  • 页码 107 p.
  • 总页数 107
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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