Session: 17-08-01: Posters Related to Energy

Paper Number: 99603

99603 - Development of Phase Change Material Form Stabilization Technology for Manufacturing Heat Storage Building Materials 

Phase change material (PCM) is an energy material that repeatedly exhibits heat storage and heat dissipation properties by absorbing heat as it melts when the surrounding temperature rises and releasing heat while crystallizing when the surrounding temperature decreases. When a substance undergoes a phase change, that is, from a solid to a liquid (or from a liquid to a solid), or from a liquid to a gas (or from a gas to a liquid), this heat that absorbs or releases heat is called latent heat. Latent heat is greater than sensible heat, that is, heat absorbed or released according to temperature change in a state where no phase transition occurs. The thermal storage material technology can increase energy use efficiency by allowing the energy used for indoor heating and cooling to be maintained at a constant temperature for a long time.

The purpose of this study is to develop a technology for stabilizing the shape of a room-temperature phase change material to develop a technology for manufacturing and using a building material with a new type of heat storage performance. For the purpose of manufacturing and applying various construction materials containing them, it is intended to maximize the energy saving effect by reducing heat loss in buildings and maintaining a comfortable indoor environment.

The natural application method by PCM reduces the indoor heat load according to the natural temperature change of the outside air, thereby reducing the capacity of the air conditioning equipment, creating a comfortable indoor environment and saving energy. In order to use PCM as a heat storage building material, PCM form stabilization technology that prevents PCM liquid from leaking to the outside is important, and although some encapsulation technology has been developed, it is necessary to develop technology to solve these problems due to heat capacity, cost, and micro-plastic problems. In this study, it is planned to increase the morphological stability of PCM by loading the PCM material inside the pores of relatively inexpensive nanoparticles and hollow fiber membranes and coating the surface. In the case of nanoparticles, by increasing the temperature in a high-temperature reaction vessel, the viscosity of PCM is lowered and the mobility is increased to support it. In the case of a hollow fiber membrane, the PCM is supported in the pores of the hollow fiber membrane by applying a reduced pressure inside the hollow fiber membrane. For morphological stabilization, the surface of PCM-containing nanoparticles and hollow fiber membrane is coated with a polymer material.

Presenting Author: Jihong Moon Korea Institute of Energy Research

Presenting Author Biography: I’m a principal researcher in Korea Institute of Energy Research (KIER) funded by South Korea government. My research fields are thermal storage, gasification, Oxy-CFBC, etc.

Authors:

Jihong Moon Korea Institute of Energy Research
Jae-Deok Jeon Korea Institute of Energy Research
Soon Jin Kwon Korea Institute of Energy Research
Sang Shin Park Korea Institute of Energy Research
Sung-Jin Park Korea Institute of Energy Research
Sang Jun Yoon Korea Institute of Energy Research
Tae-Young Mun Korea Institute of Energy Research
Jae-Goo Lee Korea Institute of Energy Research