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建筑能耗模拟与含水层特性研究在地下水源热泵系统中的应用
The Energyconsumption Simulation of Architecture and Study on the Aquifer Characteristic for the Groundwater Heat Pump System Application
【作者】 杨文斐;
【作者基本信息】 山东科技大学 , 防灾减灾工程及防护工程, 2007, 硕士
【摘要】 当今能源和环境问题日益突出。建筑领域广泛开展了以节能、环保为主题的绿色建筑技术研究和应用。采暖空调能耗是建筑能耗的主要组成部分,实现建筑节能的首要环节是围护结构、暖通空调系统的节能设计。地下水源热泵(GWHP)作为一种绿色建筑技术,具有运行稳定,高效节能、经济实用的优点,在国内外得到了高度重视,并迅速推广应用。建筑负荷动态模拟数据及能耗分析,可以用来量化评估各种节能措施应用于不同地区、不同建筑的具体效果,也是确定热泵机组的设备容量、水井设计的重要参考依据。国内外相关机构都要求在进行建筑能耗评估时,采用动态模拟方法对建筑物进行全年能耗计算。本文对某一建筑物进行了不同外墙保温性能、不同外窗、不同通风措施下的能耗模拟计算,分析了各种因素对建筑采暖、空调总能耗的影响,选出了合理节能的方案;以该方案的建筑负荷数据为输入条件,采用数值模拟的方法,研究了不同条件下含水层中的流动-传热问题,并根据计算结果,分析了温度场,压力场的分布特点,比较了不同地质条件、井位布置方式、井水利用温差等因素对温度场、压力场的影响,提出了避免热贯通的方法。地下水源热泵系统与其他热泵系统的最大不同就在于其冷热源为地下水,地下水系统是GWHP系统成败的关键;通过对某一地下水源热泵空调工程的调研,主要就井水抽灌和井水利用方式进行了总结和研究。
【Abstract】 Nowadays, problems of energy and environment are increasingly serious. The study and application of Green Architecture technology with the topic of energy-saving and environmental protection, have been widely spread in the field of architecture. The architecture energy consumption is mostly from heating and air-conditioning, so the energy-saving design of envelop structure and air-conditioning system is the first step for the architecture energy-saving realization. As a kind of Green Architecture technology, groundwater heat pump systems (GWHP) have been widely applied home and abroad, for its virtues of stable performance, high-efficiency and energy-saving.The accurate and detailed data of dynamic load simulation and energy consumption analysis can be used for quantify evaluation of different energy-saving measures used in different areas and architectures; the data is also the selection judgement of well design and heat pump capacity. Therefor, some organizations require that the dynamic load simulation should be used to calculate architecture annual energy consumption , for the purposes of evaluating the architecture energy consumption.The energy consumption of an examples building with different outer wall heat preservation capacity , different outer windows and different ventilation schemes was simulated in this paper. The influence of different factor on heating and air-conditioning energy consumption was analyzed. A suitable energy-saving case data was selected for the next section of this paper. Based on the selected data , the flow-heat transfer in different aquifer was studied by numerical simulation. The distribution characteristics of temperature field and pressure field were analysed. The influences of different geological conditions, wells group location, temperature difference of supply-return groundwater on temperature field and pressure field were compared; some methods for heat transfixion avoiding were put forward . The most difference of GWHP from other heat pump system is the heat/cold source-groundwater. The groundwater system is a key of GWHP system. Based on a practical example, the use of groundwater and production and injection was summarized .
【Key words】 energy consumption simulation; groundwater heat pump; production /injection well; aquifer; temperature field; pressure field;
- 【网络出版投稿人】 山东科技大学 【网络出版年期】2008年 05期
- 【分类号】TU111
- 【被引频次】3
- 【下载频次】337