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Heat Transfer Research
インパクトファクター: 0.404 5年インパクトファクター: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2019025925
Forthcoming Article

Thermal analysis of perlite reinforced cement panels at varying moisture contents

Serdar Celik
Southern Illinois University
Pinar Menguc
Ozyegin University

要約

Research on composite materials to be used in building insulation vaulted over the existing era in recent years. Building energy efficiency gained much broader significance following the COP 21 Paris agreement. In light of this outcome, this study focuses on the analysis of a construction material with potential building energy performance betterment. A composite material consisting of Portland cement and perlite was developed and tested. R-values of perlite reinforced panels at different moisture levels were measured by using reverse heat leak method. Results from this method were verified by testing of materials with known properties and compared to theoretical calculations. Verification of theory was achieved within 1.8% error range. Thermal diffusivity values of the developed samples were also measured using flash method. It was observed that addition of perlite into cement increases the thermal insulation capacity while thermal resistance decreases with increasing moisture content in the panels. Thermal diffusivity was found to be increasing up to a critical moisture level beyond which it plummets due to the effect of density of water dominating the increase in thermal conductivity. These findings are considered to be significant for the construction industries, especially for regions with abundant perlite reserves.