Experimental Investigation of Thermal Conductivity of Concrete Containing Micro-Encapsulated Phase Change Materials

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

7 Citations (Scopus)

Abstract

The aim of increasing the building internal heat storage capacity is to be able to store excessive heat gains and by that reduce indoor high temperature peaks and at the same time shift high heat loads to the low heat loads hours and to decrease cooling energy need. The concept presented in this article utilizes integration of the concrete and the microencapsulated Phase Change Material (PCM). PCM has the ability to absorb and release significant amounts of heat at a specific temperature range. As a consequence of admixing PCM to the concrete, new thermal properties like thermal conductivity and specific heat capacity have to be defined. This paper presents results from the measurements of the thermal conductivity of various microencapsulated PCM-concrete and PCM-cement-paste mixes. It was discovered that increase of the amount of PCM decreases the thermal conductivity of the concrete PCM mixture. Finally, a theoretical calculation methodology of thermal conductivity for PCM-concrete mixes is developed.
Original languageEnglish
Title of host publicationProceedings of ISHVAC 2011
EditorsZhang Xu, Li Zhengrong, Gao Naiping, Zhou Xiang
Number of pages9
Volume1
PublisherTsinghua University
Publication date2011
Pages191-198
ISBN (Electronic)978-962-85138-0-2
Publication statusPublished - 2011
EventInternational Symposium on Heating, Ventilation and Air Conditioning - Shanghai, China
Duration: 6 Nov 20119 Nov 2011
Conference number: 7

Conference

ConferenceInternational Symposium on Heating, Ventilation and Air Conditioning
Number7
CountryChina
CityShanghai
Period06/11/201109/11/2011

Keywords

  • Phase Change Material
  • Thermal Conductivity Measurements
  • Hot Plate
  • Concrete

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