地下蓄能间歇时序影响与作用  

Effect of intermittent time sequence in underground thermal energy storage system

作　　者：高青[1,2] 王丽华[2] 江彦[2] 李明[1,2] 

机构地区：[1]吉林大学汽车仿真与控制国家重点实验室,长春130022 [2]吉林大学汽车工程学院,长春130022

出　　处：《吉林大学学报（工学版）》2011年第6期1565-1570,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(50806028)

摘　　要：在建立大型热源群模型的基础上,研究了地下蓄能负荷周期的控制方式,探索了间歇时序与动态蓄能方式对地下蓄能效果的影响。分析表明,地下蓄能负荷分配的温位幅值分布、间歇周期和循环间断周期等所形成的动态温度场不但在蓄能加热期对蓄能具有明显作用,对于蓄热结束后能量保持期的能量扩散程度也起到一定的影响作用,可以通过可控性扩散传输,达到促进蓄能和抑制所蓄能量流失的目的。其中,昼夜性间歇比全日性间歇蓄能方式对能量蓄存更有效,短间歇周期对蓄能过程中的蓄存能量、平均温升和最高温度等更加有利。因此,通过间断性控制及合理的热源温位分布,有利于主动控制蓄存能量的传输和保存。The control patterns of loading period in the field of underground energy storage were investigated based on a large scale multi-heat source model,and the intermittent sequence and dynamic storage modes were considered accordingly.The results indicate that the storage efficient in the period of heating is affected by the dynamic temperature field significantly which is formed by the temperature amplitude distribution,intermittent period,rest cycle in the different load distribution,while the energy diffusion in the period of energy reservation is also affected by the dynamic temperature.The controllable energy diffusion transfer method both facilities energy storage and inhibits the loss of the stored energy.The results also indicate that the semi-day intermittent mode is more effective than the full-day intermittent mode,and the shorter intermittent period is more beneficial to optimize the energy storage quantity,average temperature and maximum temperature during the energy storage.Therefore,a reasonable selection of dynamic load mode with intermittent period and temperature distribution is beneficial for efficient heat transfer and effective energy transportation in multi-heat sources system.

关 键 词：热能工程 地下蓄能技术 间歇时序 温变特性 能量传输 

分 类 号：TK521[动力工程及工程热物理—热能工程]