Park, Jinsoo Shin, Dong Ho Lee, Seung Joo Shin, Youhwan Karng, Sarng Woo 2024-01-19T21:00:59Z 2024-01-19T21:00:59Z 2021-09-02 2019-02 2210-6707 https://pubs.kist.re.kr/handle/201004/120401 Thermal energy storage is an essential technology for using renewable energy to reduce building energy consumption. Among the various energy technologies, much attention has been paid to latent thermal energy storage system using phase change materials because of its large capacity of thermal energy. However, due to the low thermal conductivity of the phase change materials, the system has disadvantages at low charging and discharging rates. To address this issue, a new latent heat thermal energy storage system using a flexible and thin pouch is proposed. The effectively designed pouch arrangement and thin pouch shape provide better heat transfer performance. The real product is tested at various flow rates of heat transfer fluids and the thermal and fluid characteristics of the system are analyzed by the computational fluid dynamics model. As a result, the proposed system has 1.4 times larger amount of discharged energy than that of the water storage system. Moreover, the system can reduce charging, discharging, and total process times by 1.7, 2.5, and 2.2 times, respectively, compared with the conventional sphere capsule piling system. English ELSEVIER SCIENCE BV ENHANCEMENT CAPSULE Effective latent heat thermal energy storage system using thin flexible pouches Article 10.1016/j.scs.2018.10.046 1 SUSTAINABLE CITIES AND SOCIETY, v.45, pp.143 - 150 SUSTAINABLE CITIES AND SOCIETY 45 143 150 scie scopus 000455274500013 2-s2.0-85057468924 Construction & Building Technology Green & Sustainable Science & Technology Energy & Fuels Construction & Building Technology Science & Technology - Other Topics Energy & Fuels Article ENHANCEMENT CAPSULE Latent heat thermal energy storage system Flexible pouch Phase change material Latent heat Computational fluid dynamics