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Advances in Materials Science and Engineering
Volume 2016, Article ID 6359414, 15 pages
http://dx.doi.org/10.1155/2016/6359414
Research Article

Experimental Research on the Thermal Performance of Composite PCM Hollow Block Walls and Validation of Phase Transition Heat Transfer Models

1School of Energy and Power Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
2College of Urban Construction, Nanjing Tech University, Nanjing, China

Received 1 September 2015; Revised 27 December 2015; Accepted 29 December 2015

Academic Editor: Fernando Lusquiños

Copyright © 2016 Yuan Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A type of concrete hollow block with typical structure and a common phase change material (PCM) were adopted. The PCM was filled into the hollow blocks by which the multiform composite PCM hollow blocks were made. The temperature-changing hot chamber method was used to test the thermal performance of block walls. The enthalpy method and the effective heat capacity method were used to calculate the heat transfer process. The results of the two methods can both reach the reasonable agreement with the experimental data. The unsteady-state thermal performance of the PCM hollow block walls is markedly higher than that of the wall without PCM. Furthermore, if the temperature of the PCM in the wall does not exceed its phase transition temperature range, the PCM wall can reach high thermal performance.