Paper Conference

Proceedings of Building Simulation 2011: 12th Conference of IBPSA

     

Simulation of the behaviour of Phase Change Materials for the improvement of thermal comfort in lightweight buildings

Gianpiero Evola, Novella Papa, Fabio Sicurella

DOI: https://doi.org/10.26868/25222708.2011.1452
Abstract: This paper describes the results of a study aimed at assessing the effectiveness of Phase Change Materials (PCM) for the improvement of summer thermal comfort in lightweight buildings. The work is based on simulations on a test room in a real building. By varying the thickness of the PCM panel, installed on the inner side of the internal partitions of the test room, as well as the intensity of the night mechanical ventilation and the ways the panels are reduced size of the microcapsules enhances the full exploitation of the PCM thus optimizing its effectiveness. More details about these technologies are available in (Tyagi et al., 2011). MODELLING PCM MATERIALS The transient one-dimensional heat conduction in a homogeneous single-layered wall may be expressed through the Fourier law as: installed, some interesting conclusions concerning the effectiveness of PCMs on thermal comfort are obtained. The analysis is supported by new ∂²T x,τ λ⋅ ∂x² = ρC ⋅ ∂T (x,τ) ∂τ (1) indicators, which help quantify the intensity and the duration of the potential thermal discomfort, as well as the actual duration of PCM activation phase.
Pages: 1299 - 1306
Paper:
bs2011_1452