In this study, the performance of an open thermochemical energy storage (TCES) system integrated with a flat plate solar collector is evaluated using a simplified dynamic model for space heating applications, considering a charging phase during the summer daytime and a discharging phase during the winter night. For charging and discharging operations, the time-varying solar flux (DNI) and ambient conditions in Pune, India is used. Simplified energy balance equations for the reactive packed bed and the flat plate solar collector are developed and validated against the previous reported works. The effects of the energy density and the aspect ratio of the reactive packed bed on the performance of the TCES system are evaluated using a non-dimensional parameter $\sigma$, which is the ratio of thermal power extracted/stored to the power required to blow air through the reactive packed bed. An increase in reactive packed bed energy density by 16.66% is found to decrease the time-averaged value of $\sigma$ by 63.97% and 48.06%, respectively, for charging and discharging phases. A four-fold increase of aspect ratio of the reactive packed bed is found to increase the time-averaged value of $\sigma$ by 6.20 times and 6.35 times during the charging and discharging phases, respectively.

在这项研究中，考虑到夏季白天的充电阶段和冬季的放电阶段，使用简化的动态模型针对空间供热应用评估了与平板太阳能集热器集成的开放式热化学能量存储（TCES）系统的性能晚。对于充电和放电操作，使用印度浦那的时变太阳通量（DNI）和环境条件。针对先前报道的工作，开发并验证了反应堆床和平板太阳能收集器的简化能量平衡方程式。使用无量纲参数评估能量密度和反应性填充床长宽比对TCES系统性能的影响$\sigma$，它是提取/存储的热能与将空气吹过反应性填充床所需的功率之比。发现反应堆填充床能量密度增加16.66％会降低反应堆床的时间平均值$\sigma$充电和放电阶段分别降低了63.97％和48.06％。发现反应性填充床的长宽比增加了四倍，可以增加反应时间的平均值。$\sigma$ 在充电和放电阶段分别减少了6.20倍和6.35倍。