摘要
研究长期运行的地下水源热泵系统地下温度场的变化规律,保持抽水井水温的恒定是保证地下水源热泵系统稳定运行的关键因素.鉴此,本文采用流体力学常用的模拟软件fluent建立地下水流与温度场的耦合模型,对比工程中常用的单供暖模式、固定井冷热联供模式、倒井冷热联供模式、固定井冷热联供加蓄热模式和倒井冷热联供加蓄热模式长期运行后地下温度场热交互程度及抽水温度的变化趋势,分析总结出更具长期稳定运行优势的运行模式,对解决实际工程问题具有指导意义.
There are two key factors for ensuring the stable operation of the ground source heat pump system,one is studying the variation for the underground temperature field of the long-running ground-water heat pump system,the other is maintaining the constant pumping well water temperature. In view of the above mentioned facts,the software fluent which be commonly used in the fluid mechanics was adopted to build the coupling model for the groundwater flow and temperature field. Thus,it was used to find the variation tendency of the thermal interaction degree of the underground temperature field and pumping temperature in the different modes,such as the single heating mode,the fixed wells cooling and heating mode,the inverted wells cooling and heating mode,the fixed wells cooling and heating plus storage heat mode,the inverted wells cooling and heating plus storage heat mode. Finally,a kind of operational mode whose advantages are long-term and stable was analyzed and summarized,which is very meaningful to solve the practical engineering problems.
出处
《应用基础与工程科学学报》
EI
CSCD
北大核心
2015年第3期554-561,共8页
Journal of Basic Science and Engineering
基金
国家自然科学基金项目(51376080)
关键词
地下水源
热泵
运行模式
模拟分析
groundwater source
heat pump
running mode
simulation analysis
