Experimental assessment of position of macro encapsulated phase change material in concrete walls on indoor temperatures and humidity levels

Xian Shi, Shazim Ali Memon, Waiching Tang, Hongzhi Cui, Feng Xing

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

This paper presents the results of experimental investigation on macro encapsulated phase change material (PCM) incorporated in concrete walls of room models in real conditions. The focus of this study was to evaluate the effect of positions (externally bonded, laminated within and internally bonded) of macro encapsulated PCM in concrete walls on indoor temperatures and humidity levels of room models. Experimental results indicated that PCM models could adjust the indoor temperature and humility levels, however, its effectiveness was found to be greatly dependent on the position of PCM in concrete walls. The model with PCM laminated within the concrete walls showed the best temperature control and was effective in reducing the maximum temperature by up to 4 C. Whereas, the model with PCM placed on the inner side of concrete walls showed the best humidity control and reduced the relative humidity by 16% more than the control model. Therefore, it can be concluded that PCM models are thermally efficient and by reducing the relative humidity they provide comfortable and healthy indoor environment. Moreover, it is shown that the application of PCM in public housing flat of Hong Kong is economically visible with a recovery period of 11 years.

Original languageEnglish
Pages (from-to)80-87
Number of pages8
JournalEnergy and Buildings
Volume71
DOIs
Publication statusPublished - Mar 2014
Externally publishedYes

Fingerprint

Phase change materials
Macros
Atmospheric humidity
Concretes
Temperature
Humidity control
Temperature control
Recovery

Keywords

  • Macro encapsulation
  • Phase change material
  • Relative humidity
  • Temperature
  • Thermal performance

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Experimental assessment of position of macro encapsulated phase change material in concrete walls on indoor temperatures and humidity levels. / Shi, Xian; Memon, Shazim Ali; Tang, Waiching; Cui, Hongzhi; Xing, Feng.

In: Energy and Buildings, Vol. 71, 03.2014, p. 80-87.

Research output: Contribution to journalArticle

@article{4302d9df0b9045e7ac9bba460b0d8f91,
title = "Experimental assessment of position of macro encapsulated phase change material in concrete walls on indoor temperatures and humidity levels",
abstract = "This paper presents the results of experimental investigation on macro encapsulated phase change material (PCM) incorporated in concrete walls of room models in real conditions. The focus of this study was to evaluate the effect of positions (externally bonded, laminated within and internally bonded) of macro encapsulated PCM in concrete walls on indoor temperatures and humidity levels of room models. Experimental results indicated that PCM models could adjust the indoor temperature and humility levels, however, its effectiveness was found to be greatly dependent on the position of PCM in concrete walls. The model with PCM laminated within the concrete walls showed the best temperature control and was effective in reducing the maximum temperature by up to 4 C. Whereas, the model with PCM placed on the inner side of concrete walls showed the best humidity control and reduced the relative humidity by 16{\%} more than the control model. Therefore, it can be concluded that PCM models are thermally efficient and by reducing the relative humidity they provide comfortable and healthy indoor environment. Moreover, it is shown that the application of PCM in public housing flat of Hong Kong is economically visible with a recovery period of 11 years.",
keywords = "Macro encapsulation, Phase change material, Relative humidity, Temperature, Thermal performance",
author = "Xian Shi and Memon, {Shazim Ali} and Waiching Tang and Hongzhi Cui and Feng Xing",
year = "2014",
month = "3",
doi = "10.1016/j.enbuild.2013.12.001",
language = "English",
volume = "71",
pages = "80--87",
journal = "Energy and Buildings",
issn = "0378-7788",
publisher = "Elsevier",

}

TY - JOUR

T1 - Experimental assessment of position of macro encapsulated phase change material in concrete walls on indoor temperatures and humidity levels

AU - Shi, Xian

AU - Memon, Shazim Ali

AU - Tang, Waiching

AU - Cui, Hongzhi

AU - Xing, Feng

PY - 2014/3

Y1 - 2014/3

N2 - This paper presents the results of experimental investigation on macro encapsulated phase change material (PCM) incorporated in concrete walls of room models in real conditions. The focus of this study was to evaluate the effect of positions (externally bonded, laminated within and internally bonded) of macro encapsulated PCM in concrete walls on indoor temperatures and humidity levels of room models. Experimental results indicated that PCM models could adjust the indoor temperature and humility levels, however, its effectiveness was found to be greatly dependent on the position of PCM in concrete walls. The model with PCM laminated within the concrete walls showed the best temperature control and was effective in reducing the maximum temperature by up to 4 C. Whereas, the model with PCM placed on the inner side of concrete walls showed the best humidity control and reduced the relative humidity by 16% more than the control model. Therefore, it can be concluded that PCM models are thermally efficient and by reducing the relative humidity they provide comfortable and healthy indoor environment. Moreover, it is shown that the application of PCM in public housing flat of Hong Kong is economically visible with a recovery period of 11 years.

AB - This paper presents the results of experimental investigation on macro encapsulated phase change material (PCM) incorporated in concrete walls of room models in real conditions. The focus of this study was to evaluate the effect of positions (externally bonded, laminated within and internally bonded) of macro encapsulated PCM in concrete walls on indoor temperatures and humidity levels of room models. Experimental results indicated that PCM models could adjust the indoor temperature and humility levels, however, its effectiveness was found to be greatly dependent on the position of PCM in concrete walls. The model with PCM laminated within the concrete walls showed the best temperature control and was effective in reducing the maximum temperature by up to 4 C. Whereas, the model with PCM placed on the inner side of concrete walls showed the best humidity control and reduced the relative humidity by 16% more than the control model. Therefore, it can be concluded that PCM models are thermally efficient and by reducing the relative humidity they provide comfortable and healthy indoor environment. Moreover, it is shown that the application of PCM in public housing flat of Hong Kong is economically visible with a recovery period of 11 years.

KW - Macro encapsulation

KW - Phase change material

KW - Relative humidity

KW - Temperature

KW - Thermal performance

UR - http://www.scopus.com/inward/record.url?scp=84891773297&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84891773297&partnerID=8YFLogxK

U2 - 10.1016/j.enbuild.2013.12.001

DO - 10.1016/j.enbuild.2013.12.001

M3 - Article

VL - 71

SP - 80

EP - 87

JO - Energy and Buildings

JF - Energy and Buildings

SN - 0378-7788

ER -