Full Description

PCM (phase change materials) is an innovativetechnology and an effective method for improving the thermal mass of buildingsowing to it possesses the property of large thermal capacity within a limitedtemperature range, which is similar to an isothermal energy tank. However, mostof the previous studies focused on the combination of PCM and walls that theutilization potential of rooftop is lack of concern though there is asignificant amount of heat gains from rooftop. Several previous studies usedexperimental or numerical simulation methods to investigate the energy-savingpotential of installing PCMs in roofs and analyzed the relationship betweenenergy conservation, climatic conditions, and the features of PCM such asthickness, positions and PCT [1]~[3]. The utilization of PCM is now graduallyused for better building heat insulation. In addition, for building located indifferent climate zones during different seasons, it is important to select appropriatePCMs possessing suitable phase-change parameters to meet the energy-efficiencyrequirements of a building. Specifically, a PCM with ideal performance in thecooling season may yield poor or unfavorable results in the natural-ventilationseason. There are few previous studies attempted to analyze the efficacy ofPCMs in reducing the cooling load during the air-conditioning (AC) season andthe thermal discomfort during the natural-ventilation (NV) seasonsimultaneously. Consequently, this study aims at investigating the effectivenessof roofs with PCMs under the thermal management conditions in terms of reducingthe cooling load demand during the AC season and ensuring thermal comfort ofclassrooms during the NV season. It is expected to suggest the appropriateproperties of PCM for school buildings, including thickness and PCT. In addition,the optimal pattern of PCM which is proper to be utilized through the entireyear is proposed to fulfill the indoor comfort and energy-saving potential.

Product Details

Published: 2022 Number of Pages: 3 Units of Measure: Dual File Size: 1 file Product Code(s): D-IAQ2020-C2-A03 Note: This product is unavailable in Russia, Belarus