渗流对地下换热器能量动态蓄存控制的影响

›› 2012, Vol. 42 ›› Issue (05): 1179-1184.

渗流对地下换热器能量动态蓄存控制的影响

江彦¹, 高青^1,2, 李明^1,2, 王丽华¹

1. 吉林大学热能工程系,长春 130022;
2. 吉林大学汽车动态仿真与控制国家重点实验室,长春 130022

收稿日期:2011-06-05 出版日期:2012-09-01 发布日期:2012-09-01
通讯作者: 高青(1961-),男,教授,博士生导师.研究方向:能源利用及其高效传热.E-mail:gaoqing@jlu.edu.cn E-mail:gaoqing@jlu.edu.cn
基金资助:
国家自然科学基金项目(50806028).

Effect of groundwater seepage on energy dynamic storage control of underground heat exchanger

JIANG Yan¹, GAO Qing^1,2, LI Ming^1,2, WANG Li-hua¹

1. Department of Thermal Energy Engineering, Jilin University, Changchun 130022, China;
2. State Key Laboratory of Automotive Simulation and control, Jilin University, Changchun 130022, China

Received:2011-06-05 Online:2012-09-01 Published:2012-09-01

摘要/Abstract

摘要： 针对地下水渗流旺盛地区的地下蓄能,提出全新的偏置加载控制模式。利用负荷量和温位的双重控制,可更加有效地提高地下蓄能的传热效率,提升蓄能区域的能量保持能力。通过分析可知,在输入能量基本一致的条件下,偏置梯级加载控制比环式梯级加载控制表现出更加明显的蓄能能力和保持潜力。对偏置式动态间歇蓄能方式的研究发现,短间歇蓄能方式在蓄能数量、平均温升和最高温度方面都比长间歇蓄能方式更有利于能量在埋管区域的蓄存、扩散和保持。

关键词: 热能工程, 地能利用, 地下蓄能, 地下水渗流, 动态控制, 偏置负荷

Abstract: For the underground energy storage system in the region with strong groundwater seepage, a new offset load control mode was proposed based on a large-scale numerical model of multi-heat source. Applying the dual control of the load magnitude and the temperature potential, it was possible to enhance the heat transfer efficiency of the underground energy storage system and the energy consevation capability of the energy storage region. The analysis demonstrated that at the condition of same energy input, the offset step-load control mode is superior to the traditional ring-load control mode in the capacity of energy storage and conservation. The study on the offset dynamic energy storage intermittence showed, short intermittence is superior to long intermittence in the energy storage magnitude, the average temperature rise and the maximal temperature to enhance the energy storage, diffusion and conservation in the pipe burying region.

Key words: thermal energy engineering, earth energy utilization, underground energy storage, groundwater seepage, dynamic control, offset load

中图分类号:

TK521

江彦, 高青, 李明, 王丽华. 渗流对地下换热器能量动态蓄存控制的影响[J]. , 2012, 42(05): 1179-1184.

JIANG Yan, GAO Qing, LI Ming, WANG Li-hua. Effect of groundwater seepage on energy dynamic storage control of underground heat exchanger[J]. , 2012, 42(05): 1179-1184.

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