当前位置:主页 > 管理论文 > 城建管理论文 >

开式水源多功能热泵的实验研究

发布时间:2018-05-29 08:16

  本文选题:开式 + 水源 ; 参考:《西安建筑科技大学》2014年硕士论文


【摘要】:在日常生活中,人们对制冷、供暖和生活热水均有需求。目前,解决这三种需求主要采用热泵型空调机组加锅炉或热水器的方式,,但是这种方案既不节能、也不环保。另外,用一套系统解决这三种需求的闭式水源多功能热泵已经在市场上得到了应用,而开式水源/空气源多功能热泵还没有成熟的方案。近年,本课题组提出了一种开式水源/空气源多功能热泵。本文针对其中的开式水源多功能热泵进行了实验研究。 本文介绍了开式水源多功能热泵的工作原理及其可实现的四种功能模式;设计并搭建了一套开式水源多功能热泵实验台,该实验台可对换热器的进出口水温、进出口水温差同时进行有效的控制。在试验过程中,进出口水温的控制精度为±0.2℃,进出口水温差的控制精度为±0.3℃。 利用搭建的实验台对开式水源多功能热泵的制热工况进行了实验研究,结果表明:当热水进出口温差为5℃,热源侧换热器进出口水温为14℃/9℃、热水进出口温度为40℃/45℃时,其COP比水源热泵机组国家标准至少升高了7.7%;另外,当热源侧换热器进出口水温分别为10℃/5℃、12℃/7℃、14℃/9℃,热水出水温度为40℃~55℃,且热水进出口温差为5℃时,其COP为2.20~4.22,其排气温度为80.3℃~109.6℃;在相同的热源侧换热器进出口水温和热水出口温度下,当热水进出口温差为10℃时,其COP为2.60~4.51,其排气温度为78.3℃~101.3℃;通过对比分析可知,在相同工况下,当热水进出口温差由5℃增大为10℃时,其制热COP分别升高了3.1%~18.5%,说明该热泵在制热工况下,大温差小流量运行性能更好。
[Abstract]:In daily life, people have a need for refrigeration, heating and domestic hot water. At present, heat pump air conditioning unit plus boiler or water heater is used to solve these three demands, but this scheme is neither energy saving nor environmental protection. In addition, a closed water source multifunctional heat pump with one set of systems has been applied in the market, but the open water source / air source multifunction heat pump has not been a mature scheme. In recent years, our team proposed an open water / air source multifunctional heat pump. In this paper, an experimental study of open water source heat pump is carried out. This paper introduces the working principle and four functional modes of open water source multifunctional heat pump, designs and builds a set of open water source multifunction heat pump experimental platform, which can be used to control the inlet and outlet water temperature of heat exchanger. The temperature difference of inlet and outlet water is controlled effectively at the same time. During the experiment, the control precision of inlet and outlet water temperature is 卤0.2 鈩

本文编号:1950160

资料下载
论文发表

本文链接:https://www.wllwen.com/guanlilunwen/chengjian/1950160.html


Copyright(c)文论论文网All Rights Reserved | 网站地图 |

版权申明:资料由用户c52a4***提供,本站仅收录摘要或目录,作者需要删除请E-mail邮箱bigeng88@qq.com