地下岩土能量传输动态控制特性实验研究  

EXPERIMENTAL INVESTIGATION FOR DYNAMIC CONTROL OF UNDERGROUND THERMAL ENERGY TRANSFERS

作　　者：江彦[1,2] 高青[1,2] 王丽华[2] 李明[1,2] 

机构地区：[1]吉林大学汽车动态模拟国家重点实验室,长春130025 [2]吉林大学热能工程系,长春130025

出　　处：《太阳能学报》2012年第8期1433-1440,共8页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(50806028)

摘　　要：针对地下蓄能和地源热泵地下高效传热和有效能量传输控制问题开展研究,通过阵列多热源岩土槽传热实验,分析比较3种典型的岩土蓄能传热动态控制模式,探索不同动态负荷控制的岩土传热过程温度变化形态,分析能量蓄存、扩散及保持各阶段的温变特性和影响规律。结果表明,热源排列负荷交变和间歇周期对地下岩土传热具有重要作用,其振幅和相位是寻求最佳能量传输的主要影响因素。合理的热源间负荷调节有利于地下换热能量的区域性保存和传输扩散。The efficient heat transfer and effective energy transfer in underground thermal energy storage （UTES） and ground source heat pump （GSHP） as well as their control issues were investigated experimentally. In an array of muhi-heat source soil tank, three typical dynamic control modes of experiment were implemented. The temperature variation and distribution in the ground heat transfer were measured to understand the mechanism and relevant characteristics in the period of energy injection into soil, energy diffusion and energy protection in UTES. Experiment results showed that the dynamic alternation, the intermittent period and the temperature amplitude distribution of heat load in a large-scale multi-heat source arrangement play the important role. Wherein, the effective control of energy transport can be realized by different amplitudes and phase differences. Therefore a reasonable selection of dynamic load mode is beneficial for the efficient heat transfer and the effective protection.

关 键 词：地下传热 能量传输 实验 动态控制 

分 类 号：TK521[动力工程及工程热物理—热能工程]