并联非直膨式太阳能-空气源热泵热水系统的热力学分析
详细信息    查看官网全文
摘要
为做并联非直膨式太阳能-空气源热泵热水系统的热力学分析,揭示系统在真实的环境工况下的耗能,从而更加全面深入的指出太阳能-空气源热泵热水系统的能源利用率,对进一步诊断整个系统的节能薄弱环节提供依据。因此,搭建了一套并联非直膨式太阳能-空气源热泵热水系统试验样机,以此为基础分别对整个系统及子系统进性热平衡分析和分析。基于分析结果,对比得到以下结论:在并联非直膨式太阳能-空气源热泵热水系统试验样机中太阳能热水子系统和空气源热泵热水子系统可单独运行,系统热损失与损失最大部分为太阳能热水子系统,应对该部分进行合理设计和保温;在太阳能热水子系统和空气源热泵热水子系统之间的耦合上进一步优化,可有效降底系统热损失与损失;在系统运行测试过程中,空气源热泵热水子系统的平均COP最低都可达到3.1以上,且太阳能热水系统子系统所获取的是免费的太阳能,因此,系统具有很好的节能效果。
Thermodynamic analysis of parallel connection and non-direct expansion solar-air source heat pump hot water systemr,energy consumption in the real environment conditions so as to reveal the system,further pointed out that solar air source heat pump hot water system energy efficiency,energy saving of the system further diagnosis provides the basis for the weak link.Therefore,a set of parallel connection and non-direct expansion solar-air source heat pump hot water systemr test prototype system based on heat balance analysis respectively and energy analysis in the whole system and subsystem.Based on the analysis results of the comparison,obtained the following conclusions:in the parallel non direct expansion solar air source heat pump hot water system test prototype of solar hot water system and air source heat pump hot water system can be run separately,the system of heat loss and energy loss is the largest part of solar hot water system,and the reasonable design of insulation.To further optimize the coupling between the solar hot water system and air source heat pump hot water system,can effectively reduce the heat loss and energy loss system.In the operation of the system in the process of testing,the air source heat pump hot water system the lowest average COP can reach more than 3.1,and the solar water heating system subsystem is obtained free solar energy,therefore,the system has a good energy saving effect.
引文
[1]刘雨曦,卢军.空气源热泵辅助太阳能热水系统在夏热冬冷地区的运行模拟和应用研究.重庆大学.2011.65-66.
    [2]林康立.太阳能与空气源热泵结合的热水工程设计及技术经济比较[J].制冷技术,2009(1);5-11
    [3]沈维道.工程热力学[M].高等教育出版社,2001.
    [4]刘志清,撤卫华,纪国梁.对几种热力系统的热效率与炯效率的分析.机电信息.2014,34:1-2
    [5]郭俊杰.空气源热泵热水装置优化分析与运行策略研究.上海交通大学.2013.39-42.
    [6]中华人民共和国建设部.GB 50364-2005.民用建筑太阳能热水系统应用技术规范[G].北京:中国建筑工业出版社,2005.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700