首页> 外文会议>Conference on Ammonia and CO2 Refrigeration Technologies >HIGH-TEMPERATURE HEAT PUMPS BASED ON NATURAL WORKING FLUIDS TO PRODUCE DISTRICT HEATING FROM INDUSTRIAL WASTE HEAT
【24h】

HIGH-TEMPERATURE HEAT PUMPS BASED ON NATURAL WORKING FLUIDS TO PRODUCE DISTRICT HEATING FROM INDUSTRIAL WASTE HEAT

机译:基于天然工作流体的高温热泵,从工业垃圾热量产生区域加热

获取原文

摘要

The amount of industrial waste heat produced in Europe annually corresponds to the total annual heating demand in buildings. Common barriers for utilizing this heat are the lack of required infrastructure, i.e. a district heating (DH) network, and too low temperature of the waste heat. To address the last-mentioned barrier, high-temperature heat pumps may be applied to upgrade the heat. This study evaluates the possibility of utilizing a heat pump to supply DH using industrial wastewater at 40°C as a heat source. Different heat pump technologies based on natural refrigerants were compared at steady state operating conditions: single-and two-stage ammonia, and ammonia-water absorption-compression (hybrid) heat pumps. The highest COP as well as the lowest operating pressure were obtained with a two-stage hybrid heat pump. Moreover, the COP for hybrid heat pumps was hardly affected by an increase in the desired DH supply temperature.
机译:欧洲生产的工业废物热量每年对应于建筑物中的总热量需求。利用这种热量的常见障碍是缺乏所需的基础设施,即区域加热(DH)网络,余热的温度太低。为了解决上述屏障,可以应用高温热泵来升级热量。本研究评估了利用热泵在40°C下使用工业废水作为热源供应DH的可能性。在稳态运行条件下比较了基于天然制冷剂的不同热泵技术:单阶段和两级氨,和氨 - 吸水 - 压缩(混合)热泵。用两级混合热泵获得最高警察以及最低工作压力。此外,用于混合热泵的COP几乎不受所需的DH供应温度的增加。

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