Analysis to optimize the location for phase change material in buildings

Jyothis P.J. Anand, Patrick E. Phelan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


In recent years, 40% of the total world energy consumption and greenhouse gas emissions is because of buildings. Out of that 60% of building energy consumption is due to HVAC systems. Under current trends these values will increase in coming years. So, it is important to identify passive cooling or heating technologies to meet this need. The concept of thermal energy storage (TES), as noted by many authors, is a promising way to rectify indoor temperature fluctuations. Due to its high energy density and the use of latent energy, Phase Change Materials (PCMs) are an efficient choice to use as TES. A question that has not satisfactorily been addressed, however, is the optimum location of PCM. In other words, given a constant PCM mass, where is the best location for it in a building? This study addresses this question by positioning PCM to obtain maximum energy savings and peak time delay. This study is divided into two parts. The first is to find the best location for PCMs in buildings using EnergyPlus software. In this part, the mass of PCM used in each location remains unchanged. The second part involves the detailed study of the best location obtained earlier, mainly focusing on peak shift and peak intensity throughout the year. From the analysis, it is observed that the ceiling is the best location to install PCM for yielding maximum reduction in HVAC energy consumption for a hot, arid climate like Phoenix.

Original languageEnglish (US)
Title of host publicationProceedings of the 3rd Thermal and Fluid Engineering Summer Conference, TFESC 2018
PublisherBegell House Inc.
Number of pages4
ISBN (Electronic)9781567004724
StatePublished - 2018
Event3rd Thermal and Fluid Engineering Summer Conference, TFESC 2018 - Fort Lauderdale, United States
Duration: Mar 4 2018Mar 7 2018

Publication series

NameProceedings of the Thermal and Fluids Engineering Summer Conference
ISSN (Electronic)2379-1748


Conference3rd Thermal and Fluid Engineering Summer Conference, TFESC 2018
Country/TerritoryUnited States
CityFort Lauderdale


  • Buildings
  • Location of phase change materials
  • Passive cooling or heating technology

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering
  • Fluid Flow and Transfer Processes
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment


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