Chemical Heat Storage Using an SiC Honeycomb Packed with CaCl<sub>2</sub> Powder
- 1 Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, Japan
- 2 Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, Japan
- 3 Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, Japan
- 4 Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, Japan
- 5 Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, Japan
Abstract
Chemical heat storage is a promising technology for improving thermal energy efficiency. In this study, CaCl 2 and H 2 O were selected as a reaction system for utilization of low-grade exhaust heat that is cooler than 200 ° C. Heat discharging and charging were conducted through the CaCl 2 hydration reaction. A silicon carbide honeycomb was adopted to improve heat transfer in the CaCl 2 packed bed. The heat storage, condenser, and evaporator temperature were set at 150 ° C, 30 ° C and 90 ° 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.
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