摘要
地源热泵运行中地埋管换热器与岩土层的热交换是一个复杂的热湿耦合传热传质过程。为研究岩溶地区地源热泵运行过程中土体热湿迁移效应及其对系统性能的影响规律,结合岩溶地区地质条件和实验功能需求,设计研制了一个可进行地源热泵运行性能测试及地埋管周围土壤热湿迁移效应研究的实验平台;该实验平台主要分为地源热泵试验系统、运行监控和数据采集系统,实现了地源热泵运行状况和换热过程中岩土体温湿度变化、土壤热湿迁移、周围环境大气因素的自动采集和实时监测;在此基础上,利用地源热泵运行过程中的实测数据验证了实验平台的有效性,并对部分实测数据进行简单分析和讨论。运行结果表明:该实验平台具有高效、节能等优点,实现了数据自动采集和全面监测功能,完全符合实验需求。
Heat exchange occurs between ground heat exchanger（ GHE） and its surrounding soil when ground source heat pump（ GSHP） is running,and it is a complicated transfer process coupling with heat and moisture. Combined with geological conditions in karst regions and experimental requirements,a new test platform was designed and developed,with which the experiments on operation performance of GSHP and heat and moisture migration effect of its surrounding soil can be carried out. The experiment platform is mainly divided into two subsystems,i. e.,the GSHP test system and operation supervisory control and data acquisition system; It is able to automatically collectdata and monitor the real-time parameters such as operation conditions of GSHP,soil temperature and moisture variation in the heat exchange process,heat and moisture migration in soils and atmospheric factors of ambient environment. On the basis,the effectiveness of the test platform was verified by the measured data recorded in the operation process of GSHP,and simple analysis and discussion on some testing data were conducted accordingly. It provides the technical support for further research on soil heat and moisture migration effect in the operation process of GSHP and its influence on the performance of the system.
出处
《广西大学学报（自然科学版）》
CAS
北大核心
2016年第1期178-186,共9页
Journal of Guangxi University（Natural Science Edition）
基金
国家自然科学基金资助项目(41502284
51568014)
广西自然科学基金资助项目(2013GXNSFBA019233)
关键词
地源热泵
热湿迁移
岩溶地区
实验平台
热量交换
ground source heat pump
heat and moisture migration
karst region
experimental platform
heat exchange
