钟晓晖,曹春蕾,李晓娟,杨海龙,孔凡钊,刘雨江
ZHONG Xiao-hui,CAO Chun-lei,LI Xiao-juan,YANG Hai-long,KONG Fan-zhao,Liu Yu-jiang

• 1:华北理工大学冶金与能源学院
• 2:中国科学院工程热物理研究所国家能源风电叶片研发(实验)中心

摘要(Abstract)：

热泵是可以取代锅炉供暖并提高能源利用效率的一种新技术,是解决目前风电弃风限电问题的有效途径之一。本文提出了一种风力机直接驱动的R134a/R123复叠式高温热泵系统,建立了系统热力学模型,并以张家口张北地区为例,对新型风能直接驱动R134a/R123复叠式热泵系统进行了理论计算和分析,研究结果表明:该系统可以在极端温度-25℃低温环境下可为总面积49693.20 m~2建筑供暖,R134a/R123复叠式热泵循环中间温度为25℃时,系统性能系数最高,可以达到2.57左右;在风速较高时,通过蓄热水箱储存一部分热量,可以有效弥补风能输出不稳定的缺陷,研究结果可为风能直接制热技术提供一定的参考。
Heat pump is a new technology that can replace boiler heating and improve energy utilization efficiency. It is one of the effective ways to solve the problem of giving up wind power and restricting power consumption in wind power generation. This paper proposed the R134 a/R123 cascade high-temperature heat pump system directly driven by wind power generator,and built the thermodynamic model,and carried out theoretical calculation and analysis for the R134 a/R123 cascade high-temperature heat pump system directly driven by wind power generator by taking Zhangbei region of Zhangjiakou as an example. The research results show that:this system can supply heating of building with a total area of 49693.20 m~2 in the environment of-25 ℃ extremely low temperature,when the medium temperature in the cycle of the R134 a/R123 cascade heat pump is 25 ℃,the COP of the system is highest and can reach about 2.57;when the wind speed is relatively high,by storing part of heat by the heat storage water tank,the system can effectively remedy the defect of unstable output of wind power. The research results can provide certain reference for wind energy direct heating technology.

关键词(KeyWords)： 风能供热;复叠式热泵;系统性能
wind power heating;cascade heat pump;system performance

Abstract:

Keywords:

基金项目(Foundation): 北京市自然科学基金项目(3172040)

作者(Author): 钟晓晖,曹春蕾,李晓娟,杨海龙,孔凡钊,刘雨江
ZHONG Xiao-hui,CAO Chun-lei,LI Xiao-juan,YANG Hai-long,KONG Fan-zhao,Liu Yu-jiang

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