| 基于全寿命周期成本的地埋管地源热泵系统间歇运行能效分析 |
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| 引用本文： | 王勇,刘清华.基于全寿命周期成本的地埋管地源热泵系统间歇运行能效分析[J].土木建筑与环境工程,2012,34(Z2):82-88. |
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| 作者姓名： | 王勇 刘清华 |
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| 作者单位： | 重庆大学三峡库区生态环境教育部重点实验室，重庆 400045;重庆大学三峡库区生态环境教育部重点实验室，重庆 400045 |
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| 基金项目： | 重庆市自然科学基金资助项目(CSTC2010BB4235) |
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| 摘 要： | 间歇运行状态影响竖埋管地源热泵系统的换热性能，进而影响系统的全寿命周期成本(LCC)。利用DeST软件对某办公建筑进行了逐时负荷模拟分析，建立了地下换热器三维管群换热模型以及热泵系统各部分的能耗模型，通过对热泵系统在连续运行15年和间歇运行15年工况下的计算结果进行对比分析，间歇运行的LCC值相对于连续运行的LCC值降低了13.45%，间歇运行模式在热泵系统全寿命周期内的平均节能率为17.20%。间歇运行模式可以有效的提高系统能效和降低LCC值。
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| 关 键 词： | 间歇运行 连续运行 竖埋管换热器 地源热泵 全寿命周期成本 |
Energy efficiency analysis on intermittent operation based on life cycle cost in the vertical ground source heat pump system |
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| WANG Yong and LIU Qinghua.Energy efficiency analysis on intermittent operation based on life cycle cost in the vertical ground source heat pump system[J].土木建筑与环境工程,2012,34(Z2):82-88. |
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| Authors: | WANG Yong and LIU Qinghua |
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| Affiliation: | Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education,Chongqing University, Chongqing 400045, China;Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education,Chongqing University, Chongqing 400045, China |
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| Abstract: | Intermittent operation can affect the heat exchange performance of the vertical ground source heat pump system, thereby affecting life cycle cost (LCC) of the ground source heat pump system. The simulation analysis on the hourly load of an office building is implemented by using the DeST software.The heat exchange model of vertical ground heat exchanger pipe-group and energy consumption model of per part of heat pump system are established. Through the comparison between calculation results of continuous operation for 15 years and calculation results of intermittent operation 15 years of the heat pump system, it can be concluded that the LCC value of intermittent operation decreased by 13.45%,relative to the LCC value of continuous operation, and the average energy saving rate of intermittent operation mode is 17.20% in the entire life cycle. Intermittent operation mode can effectively improve energy efficiency of the ground source heat pump system and reduce the LCC value. |
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| Keywords: | intermittent operation continuous operation vertical heat exchanger ground source heat pump system(GSHPs) life cycle cost (LCC) |
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