NUMERICAL MODELING OF PHASE CHANGE MATERIALS USING SIMUSOL SOFTWARE

DELLICOMPAGNI, PABLO; FRANCO JUDITH; HEIM, DARIUSZ; WIEPRZKOWICZ, ANNA

APPLIED THERMAL ENGINEERING

PERGAMON-ELSEVIER SCIENCE LTD

Lugar: Amsterdam; Año: 2019

1359-4311

Thermal storage systems with phase change materials offer a high density of energy with a moderate temperature variation as well as the possibility to keep the inner temperature within a comfort range. The use of thermal storage systems represents a diminution on energy consumption. To achieve this goal, it is necessary to select the most suitable phase change material, according to physics parameters such as melting point, latent heat, and thermal conductivity. The study of the behavior of phase change materials is crucial in order to determine the thermal performance before building applications. In this line, numerical simulations are necessary to get results and take decisions about the best material that will be implemented on buildings devices for thermal performing. In this work, optical test of samples reveal a solid-to-liquid average solar transmittance in 0.11 ? 0.76 range for different angles of incidence. Thermal heat capacity reaches 30 J/gºC, while latent heats are 260 J/g and 242 J/g, for RT18HC and RT25HC samples, respectively. Simulation results show a good performance on the room air temperature, which ranges between 20 ºC and 26 ºC.