Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : March 01, 2025
The intermittency of renewable energy sources, influenced by weather conditions and other external factors, poses a significant challenge to ensuring a stable power supply. To mitigate this issue, energy storage systems are essential. Currently, electrochemical storage batteries are the predominant solution; however, they rely on rare metals such as lithium and cobalt, raising concerns regarding resource scarcity and environmental impact. Therefore, the development of sustainable and environmentally benign energy storage technologies is a critical research priority. This study aims to develop an innovative energy storage and power generation system that leverages the dissociation and expansion characteristics of CO₂ hydrate, as well as the pressure differentials induced by phase transitions between the liquefied and vaporized states of CO₂. For the practical implementation of the proposed system, numerical simulations are indispensable. In this paper, we present the simulation methodology employed for performance evaluation.
