This investigation studied the packed bed thermal energy storage system with concrete and air used as the energy storage material and working fluid respectively. Three different configurations of packed bed arrangements such as regular ring, staggered ring and staggered ring with clearance are studied. The temperature distribution outcome of the experimental values compared with three-dimensional transient based computational simulation. The flow influencing parameters such as pressure drop, turbulence intensity, design of packed beds, the surface area of packed beds, the void fraction of the system discussed. Experimental results are in excellent agreement with simulation results. It is observed that staggered ring arrangement with the clearance for packed bed have better charging and discharging profile compared to the other two arrangements.

这项研究研究了填充床热能存储系统，其中混凝土和空气分别用作能量存储材料和工作流体。研究了填充床装置的三种不同配置，例如规则环，交错环和带间隙的交错环。实验值的温度分布结果与基于三维瞬态的计算仿真进行了比较。流量影响参数，例如压降，湍流强度，填充床的设计，填充床的表面积，所讨论系统的空隙率。实验结果与仿真结果非常吻合。可以观察到，与其他两种布置相比，交错的环形布置以及用于填充床的间隙具有更好的充放电曲线。