New retrofit window system using phase change material frames

Abstract

Consulta en la Biblioteca ETSI Industriales (8566)

[EN] Energy save in buildings can be reached by several ways: Walls isolation, air conditioning or efficient ventilation are some examples. In this project, studies of new window systems are going to be done, comparing all the possible solutions to conclude which one would be the best in order to reduce the overheating in rooms. Phase Change Materials (PCM) are introduced as innovative materials which can absorb heat due to its properties. Research in these window systems will determinate whether this material can reach significant improvements or not. Japan, due to its location, suffers this summer overheating. With range latitudes between 31º (Makurakazi, 31º 15¿N), and 45º (Wakkanai, 45º 28¿N) (only Honsh¿ island will be considered), extreme hot conditions are affecting this island due to the Sun radiation. To compare these window systems, Japanese weather conditions will be considered, since they will be implemented there.The main aim of this project is to quantify how much incoming energy will be avoided within the use of Phase Change Materials. Results will be provided and compared within heat transfer procedures, obtaining every moment the temperature in different window zones. Results will be used to be compared with results obtained in an experimental project. The analytical procedure will be useful to modify different window elements, obtaining with it sufficient data to determinate whether a Phase Change Material (PCM) achieves an energy safe in the life cycle of a building. For this purpose, six different windows will be compared, in order to determinate the efficiency of this system. The hottest day in the data base will be used for this purpose (19th July).