skip to main content

SciTech ConnectSciTech Connect

Title: Characterization of a lime-pozzolan plaster containing phase change material

A PCM (Phase Change Material) modified lime-pozzolan plaster for improvement of thermal energy storage of building envelopes is studied in the paper. The investigated plaster is composed of lime hydrate, pozzolan admixture based on metakaolin and mudstone, silica sand, water and paraffin wax encapsulated in polymer capsule. The reference plaster without PCM application is studied as well. The analyzed materials are characterized by bulk density, matrix density, total open porosity, compressive strength and pore size distribution. The temperature of phase change, heat of fusion and crystallization are studied using DSC (Difference Scanning Calorimetry) analysis performed in air atmosphere. In order to get information on materials hygrothermal performance, determination of thermal and hygric properties is done in laboratory conditions. Experimental data reveal a substantial improvement of heat storage capacity of PCM-modified plaster as compared to the reference material without PCM.
Authors:
; ; ; ;  [1]
  1. Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29 Prague (Czech Republic)
Publication Date:
OSTI Identifier:
22391047
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1648; Journal Issue: 1; Conference: ICNAAM-2014: International Conference on Numerical Analysis and Applied Mathematics 2014, Rhodes (Greece), 22-28 Sep 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AIR; ATMOSPHERES; BULK DENSITY; CALORIMETRY; CAPACITY; COMPARATIVE EVALUATIONS; COMPRESSION STRENGTH; CRYSTALLIZATION; DIFFERENTIAL THERMAL ANALYSIS; HEAT STORAGE; HYDRATES; MATRICES; PARAFFIN; PHASE CHANGE MATERIALS; POLYMERS; POROSITY; SILICA; WATER