安徽地区地源热泵地下土壤温度预测

发布时间：2018-05-13 05:04

本文选题：地源热泵 + 冷热负荷不平衡率　；参考：《华中科技大学》2014年硕士论文

【摘要】：近年来环境问题在我国越来越突出，因此节能环保技术越来越受到重视。地源热泵系统是利用浅层地能进行制冷与供热的节能环保技术，因此有利推动了地源热泵系统在市场的推广。随着地源热泵系统的推广，地下热积累问题也凸显出来，在很大程度上限制地源热泵系统高效稳定运行。本文以安徽地区为例，建立典型的夏热冬冷建筑模型，模拟某建筑运行50年后的地下土壤变化，以便为设计值提高相关参考，为地源热泵系统优化运行方式提供指导。本文首先选取安徽地区某办公建筑为例，运用Dest-C模拟建筑全年逐时冷热负荷。然后运用模拟软件模拟运行50年后的地源热泵地下土壤温度变化情况，根据模拟结果分析并优化建筑负荷结构，，从而使得地源热泵系统可以长期稳定运行。并分析不同建筑冷热负荷不平衡率，找出适合该地区的办公楼类建筑的最小冷热负荷不平衡率，为设计地源热泵系统提供参考。再根据模拟分析结果，提供最优的辅助措施，来平衡建筑冷热负荷不平衡率。采用地源热泵系统模拟预测土壤温度与采取相应的土壤温度稳定措施，可以有效的优化建筑设计方案和运行方案，从而达到地源热泵处于长期稳定的运行状况，进而体现地源热泵系统的节能环保特点。
[Abstract]:In recent years, environmental problems have become more and more prominent in China, so energy conservation and environmental protection technology has been paid more and more attention. Ground-source heat pump system is an energy saving and environmental protection technology which uses shallow ground energy to refrigerate and heat supply, so it is advantageous to promote the promotion of ground-source heat pump system in the market. With the popularization of ground-source heat pump system, the problem of underground heat pump accumulation is also prominent, which limits the efficient and stable operation of ground-source heat pump system to a great extent. Taking Anhui as an example, a typical building model of hot summer and cold winter is set up to simulate the underground soil change after 50 years of operation of a building, in order to improve the relevant reference for the design value and to provide guidance for optimizing the operation mode of ground-source heat pump system. In this paper, an office building in Anhui Province is selected as an example, and Dest-C is used to simulate the hourly heat and cold load of the building. Then the ground-source heat pump (GSHP) ground temperature changes after 50 years of operation are simulated by using simulation software. According to the simulation results, the structure of building load is analyzed and optimized, so that the GSHP system can operate steadily for a long time. The unbalance rate of cooling and heat load of different buildings is analyzed, and the minimum unbalance rate of heat and cold load of office buildings suitable for this area is found out, which provides a reference for the design of ground-source heat pump system. According to the results of simulation analysis, the optimal auxiliary measures are provided to balance the unbalanced rate of cooling and heat load. The ground-source heat pump system can be used to simulate and predict the soil temperature and take the corresponding soil temperature stabilization measures, which can effectively optimize the architectural design and operation scheme, so that the ground source heat pump is in a long-term stable operation. And then reflect the energy conservation and environmental protection characteristics of ground source heat pump system.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU83

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