...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Building and Environment >Indirect evaporative cooler considering condensation from primary air: Model development and parameter analysis
【24h】

Indirect evaporative cooler considering condensation from primary air: Model development and parameter analysis

机译：考虑一次空气冷凝的间接蒸发冷却器：模型开发和参数分析

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

The indirect evaporative cooler (IEC), regarded as a low-carbon cooling device, was proposed as fresh air pre-cooling and heat recovery device in the air-conditioning system to break the region limitation of application in hot and humid areas. In this hybrid system, the exhausted air with low temperature and humidity from air-conditioned space is used as secondary air to cool the inlet fresh air. As the dew point temperature of the fresh air is high, condensation may. occur in the dry channels. However, the modeling of IEC with condensation has been seldom studied and corresponding parameter study is also lacking. So the paper established a new numerical model taking the condensation from primary air into consideration. The model was validated by the published data from literature with good agreement. Nine parameters were analyzed in detail under three operation states (non-condensation, partial condensation and total condensation) using four evaluation indexes: condensation ratio, wet-bulb efficiency, enlargement coefficient and total heat transfer rate. The results show that the condensation lowers the wet-bulb efficiency of IEC but improves the total heat transfer rate due to dehumidification. (C) 2015 Elsevier Ltd. All rights reserved.
机译：间接蒸发冷却器（IEC）被视为低碳冷却装置，被提议作为空调系统中的新鲜空气预冷却和热回收装置，以打破在湿热地区应用的区域限制。在这种混合动力系统中，来自空调空间的低温低湿的排气被用作二次空气，以冷却进气口的新鲜空气。由于新鲜空气的露点温度高，可能会结露。发生在干燥的渠道。但是，很少研究带有凝结的IEC建模，也缺少相应的参数研究。因此，本文建立了一个新的数值模型，其中考虑了一次空气的凝结。该模型已得到文献的公开数据验证，具有良好的一致性。在三个运行状态（非冷凝，部分冷凝和总冷凝）下，使用四个评估指标对九个参数进行了详细分析：冷凝比，湿球效率，膨胀系数和总传热速率。结果表明，凝结降低了IEC的湿球效率，但由于除湿而提高了总传热率。 （C）2015 Elsevier Ltd.保留所有权利。

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