为了实现显热移动储热系统的高效放热和高放热稳定性，基于玄武岩的高温稳定性和高储热密度，提出了以玄武岩纤维束为储热介质的显热移动储热系统。系统内部流道采用两级流道排布，增加储热介质比表面积，提高储热箱换热效果。同时，提出了基于该系统的变流速控制方案，以实现系统的高放热稳定性。研究结果表明：采用0.5 m/s流速方案的储热箱放热稳定性较好；基于0.5 m/s流速，建立了变流速功率控制方案，在原有基础上稳定放热时间延长109%，稳定放热效率从39.11%增加至81.12%，稳定放热时间由1 603 s延长至3 353 s，充分利用储热箱存储的热量；同时本方案提供了宽泛的供热功率范围，单位面积放热功率达到0.491~0.501 MW，实现了高储热密度、强稳定放热性及小体积大功率的并存。

In order to realize the efficient exothermicity and high exothermic stability of the mobile sensible thermal energy storage system,based on the high temperature stability and high thermal energy storage density of basalt,a mobile sensible thermal energy storage system using basalt fiber bundle as the thermal energy storage medium was proposed.The internal flow channel adopted doublestage flow channel arrangement to increase the specific surface area of the thermal energy storage medium and improve the heat exchange effect of the heat storage tank.At the same time,a variable flow rate control scheme based on the system was proposed to achieve high exothermic stability of the system.The research results show that the tank with a flow rate of 0.5 m/s has better exothermic stability.Based on the flow rate of 0.5 m/s,a variable flow rate power control scheme is established.On the original basis,the stable exothermic time is extended by 109%,the stable exothermic efficiency is increased from 39.11% to 81.12%,the stable exothermic time is extended from 1 603 s to 3 353 s,and the heat stored in the tank is fully utilized.At the same time,this scheme provides a wide range of heating power,and the exothermic power per unit area reaches 0.491 MW to 0.501 MW,realizing the coexistence of high thermal energy storage density,strong and stable exothermicity,and small volume and high power.

TB332