Development of Latent Heat Storage Phase Change Material Containing Plaster

Diana Bajare,Janis Kazjonovs,Aleksandrs Korjakins

doi:10.5755/j01.ms.22.1.7745

Diana Bajare, Janis Kazjonovs + Show 1 more

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https://doi.org/10.5755/j01.ms.22.1.7745

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Journal: Materials Science	Publication Date: Feb 18, 2016
Citations: 4	License type: publisher-specific-oa

Affiliation: Riga Technical University

Abstract

This paper reviews the development of latent heat storage Phase Change Material (PCM) containing plaster as in passive application. Due to the phase change, these materials can store higher amounts of thermal energy than traditional building materials and can be used to add thermal inertia to lightweight constructions. It was shown that the use of PCMs have advantages stabilizing the room temperature variations during summer days, provided sufficient night ventilation is allowed. Another advantage of PCM usage is stabilized indoor temperature on the heating season. The goal of this study is to develop cement and lime based plaster containing microencapsulated PCM. The plaster is expected to be used for passive indoor applications and enhance the thermal properties of building envelope. The plaster was investigated under Scanning Electron Microscope and the mechanical, physical and thermal properties of created plaster samples were determined.

Highlights

Demand for higher thermal comfort and climate changes has brought new challenges for designers of cooling systems, because of increased usage of air conditioning in building environment, resulting in higher electricity demand and CO2 emissions
Phase Change Material (PCM) incorporated in building envelope, for example, in walls with plasters, absorb redundant heat, which leads to improved thermal inertia of the building, lower and shifted in time temperature peaks
Mechanical properties are greatly affected by PCM addition, which results in twice a decrease in strength for both PCM plasters comparing with reference

Summary

Introduction

Demand for higher thermal comfort and climate changes has brought new challenges for designers of cooling systems, because of increased usage of air conditioning in building environment, resulting in higher electricity demand and CO2 emissions. PCM incorporated in building envelope, for example, in walls with plasters, absorb redundant heat, which leads to improved thermal inertia of the building, lower and shifted in time temperature peaks. During the phase change (solid – liquid), PCMs can absorb heat in the day when the indoor air temperature rises above the PCM melting point and release it and solidify in the night when the indoor air temperature drops below the melting point. Due to this every day cycle, PCMs can be used for cooling a building in three conventional ways [7]:

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