Paper Conference

Proceedings of Building Simulation 2011: 12th Conference of IBPSA


Numerical analysis of the thermal comfort in a retrofitted family house using a PCM/air heat exchanger system.

Kévyn Johannes, Julien Borderon, Joseph Virgone

Abstract: This paper deals with the results of an investigation into the freecooling efficiency in a low energy building using a PCM/air heat exchanger coupled with the mechanical ventilation. The numerical model of the PCM system is coupled with the type 56 of TRNSYS in order to analyse thermal comfort conditions inside the building but also cooling energy savings due to such a system. Several air rate change, temperature of fusion, climate and convective heat transfer coefficient modes were analysed. It was found that the system provides more favourable thermal comfort and leads to reduce the cooling energy demand and the peak cooling demand. However, it was shown that the night ventilation is more effective than the PCM due to fusion/cristallization problems.
Pages: 720 - 726