湖北地区地源热泵系统工程的能效测试与分析

发布时间：2018-07-05 00:35

  本文选题：地源热泵 + 能效测试　； 参考：《华中科技大学》2014年硕士论文

【摘要】：针对湖北地区新建和改造的许多地源热泵系统示范项目，目前进行现场测试和数据采集分析的较少，对该地区地源热泵系统工程的实际运行状况和应用效果也缺乏总结分析，本文就此内容进行研究。 本文对地源热泵系统能效测试中的主要内容和测试方法等做了介绍，，并设计了测试平台的搭建方案，分析了能效测试中的误差来源。选取了该地区应用较多的地下水源热泵和地埋管热泵工程案例进行分析，研究具体工程中地源热泵系统各参数的变化情况以及不同工况下机组性能系数和系统能效比，并对系统的运行稳定性和热平衡性等进行了分析。最后本文对湖北地区已完成测试的18个项目进行综合分析，总结了地源热泵技术在湖北地区的应用状况，对室内舒适度、机组性能参数、系统节能环保效益等进行了对比分析。 通过对测试数据进行整理分析，得出宜昌某银行地下水源热泵系统运行稳定性和热平衡性较好，可作为其他工程设计和运行的参考；天门某医院住宅楼地埋管热泵系统具有良好的节能环保效益，但存在冷热不平衡问题；18个项目中，大部分项目机组性能系数和系统能效比较高；几乎所有项目用户侧进出口温差低于5℃，部分项目为“大流量小温差”运行；通过机组热力完善度的分析，得出机组冬季工况运行性能优于夏季工况；热泵系统节能环保效益显著且地下水源热泵系统比地埋管热泵系统具有更好的节能和环保效益。
[Abstract]:In view of many demonstration projects of ground-source heat pump system built and reformed in Hubei area, there are few field tests and data collection and analysis at present, and there is also a lack of summary and analysis on the actual operation status and application effect of the ground-source heat pump system project in this area. This article carries on the research to this content. In this paper, the main contents and test methods of energy efficiency test of ground-source heat pump system are introduced, and the construction scheme of test platform is designed, and the error source in energy efficiency test is analyzed. The cases of groundwater source heat pump (GSHP) and ground buried pipe heat pump (GSHP) in this area are selected to analyze the variation of the parameters of the GSHP system and the performance coefficient and the energy efficiency ratio of the system under different working conditions. The stability and thermal balance of the system are analyzed. Finally, this paper comprehensively analyzes 18 items that have been tested in Hubei area, summarizes the application of ground-source heat pump technology in Hubei area, and makes a comparative analysis on indoor comfort, unit performance parameters, energy saving and environmental protection benefits of the system. Through the analysis of the test data, it is concluded that the operation stability and thermal balance of the underground water source heat pump system in Yichang bank are good, which can be used as a reference for other engineering design and operation. The ground buried pipe heat pump system in a residential building in Tianmen hospital has good energy saving and environmental protection benefits, but there is an imbalance between cold and heat, and most of the 18 projects have high performance coefficient and system energy efficiency ratio. The temperature difference between the inlet and outlet of almost all projects is less than 5 鈩

本文编号：2098146