Chemical heat storage is a promising technology for improving thermal energy efficiency. In this study, CaCl<sub>2</sub> and H<sub>2</sub>O were selected as a reaction system for utilization of...Chemical heat storage is a promising technology for improving thermal energy efficiency. In this study, CaCl<sub>2</sub> and H<sub>2</sub>O were selected as a reaction system for utilization of low-grade exhaust heat that is cooler than 200<span style="white-space:nowrap;"><span style="white-space:nowrap;">°</span></span>C. Heat discharging and charging were conducted through the CaCl<sub>2</sub> hydration reaction. A silicon carbide honeycomb was adopted to improve heat transfer in the CaCl<sub>2</sub> packed bed. The heat storage, condenser, and evaporator temperature were set at 150<span style="white-space:nowrap;">°</span>C, 30<span style="white-space:nowrap;">°</span>C and 90<span style="white-space:nowrap;">°</span>C respectively. Repeated trials and experiments are time consuming for optimizing design of the equipment. Therefore, in this research, we constructed a simulation that can predict the performance of the device. A numerical simulation model was utilized in preparation for the design of the heat storage module. The consistency of both the simulation and the experimental results was confirmed by comparing them.展开更多
文摘Chemical heat storage is a promising technology for improving thermal energy efficiency. In this study, CaCl<sub>2</sub> and H<sub>2</sub>O were selected as a reaction system for utilization of low-grade exhaust heat that is cooler than 200<span style="white-space:nowrap;"><span style="white-space:nowrap;">°</span></span>C. Heat discharging and charging were conducted through the CaCl<sub>2</sub> hydration reaction. A silicon carbide honeycomb was adopted to improve heat transfer in the CaCl<sub>2</sub> packed bed. The heat storage, condenser, and evaporator temperature were set at 150<span style="white-space:nowrap;">°</span>C, 30<span style="white-space:nowrap;">°</span>C and 90<span style="white-space:nowrap;">°</span>C respectively. Repeated trials and experiments are time consuming for optimizing design of the equipment. Therefore, in this research, we constructed a simulation that can predict the performance of the device. A numerical simulation model was utilized in preparation for the design of the heat storage module. The consistency of both the simulation and the experimental results was confirmed by comparing them.
