Numerical analysis of ventilation temperatures regulation by energy storage in phase change materials

J. Borderon (1) , J. Virgone (1) , R. Cantin (1)

1 CETHIL - Centre de Thermique de Lyon

In order to cool a house using the freshness of the cold night air, Phase Change Materials (PCM) placed in an air heat exchanger coupled with a ventilation system have been investigated. The heat exchanger is composed of a number of units with horizontal PCM sheets contained in a box beam. Air is flown between the sheets from one side to the other and exchange heat with the material by convection. At night, fresh air is used to regenerate the PCM. To analyze the behavior of such a system in a retrofitted house with the climate of 3 different French cities, simulations in different configurations have been carried on. The TRNSYS software runs the model, coupled with Matlab for the model of the PCM / air heat exchanger. Results are expressed in terms of percentage of the time when the indoor temperature reaches each temperature and comparison between the different configurations.

Domaines: Thermique [physics.class-ph]; Thermique [physics.class-ph]

J. Borderon, J. Virgone, R. Cantin. Numerical analysis of ventilation temperatures regulation by energy storage in phase change materials. ISES Solar World Congress, Aug 2011, Kassel, Germany. pp.10. ⟨hal-00763416⟩