Experimental Analysis Of Thermal Behaviour Of Phase Change Materials In Cooling Applications Of Roof Top Building Slabs

Year : 2024 | Volume :12 | Issue : 03 | Page : 102-114
By

K. Pavan Kumar Reddy

B. Nageswara Rao

J. Pavanu Sai

  1. Research Scholar Department of Mechanical Engineering, Vignan’s Foundation for Science, Technology &Research Deemed to be University, Vadlamudi Andhra Pradesh India
  2. Professor Department of Mechanical Engineering, Vignan’s Foundation for Science, Technology &Research Deemed to be University, Vadlamudi Andhra Pradesh India
  3. Associate Professor Srinivasa Institute of Engineering and Technology, Cheyyeru (V), Amalapuram Andhra Pradesh India

Abstract

In this research article, different phase change materials are incorporated inside the slabs to reduce the heat transfer from the roof. Experiments are conducted during summer season March 2021 to the time lag decrement factor and heat flux to that of results are compared with RCC slab to that of Green material I (CaCl26H2O) and Green Roof with Green material II (48%CaCl2+4.3%NaCl+0.4%KCl+47.3%H2O). On comparison Green Slab II is having better thermal performance over the other PCM materials incorporated in building slabs. The time lag and decrement factor are found to be 4 and 0.485 for Green roof II which is better than the other slabs. The percentage of error is found to be 0-5% for experimental and Analytical comparison for each slab which is a good sign for its thermal behavior. On average the temperature inside the slab is in between 2oC to 8oC for Green Roof II which is a good sign over the other slabs used for comparison. The heat flux is also reduced to 65% to 70% for the month of March 2021 by using Green Roof II. The novelty of this research work is to reduce the heat entering inside the building during summer season for Anantapur region by incorporating PCM materials inside the slabs as it is the second highest temperature receiving area in India. Unsteady state heat transfer calculations are also done for comparison of different slabs at this location.

Keywords: PCM efficiency, Application of Cooling, Phase Change materials, Melting temperature, PCM in budlings.

[This article belongs to Journal of Polymer and Composites(jopc)]

How to cite this article: K. Pavan Kumar Reddy, B. Nageswara Rao, J. Pavanu Sai. Experimental Analysis Of Thermal Behaviour Of Phase Change Materials In Cooling Applications Of Roof Top Building Slabs. Journal of Polymer and Composites. 2024; 12(03):102-114.
How to cite this URL: K. Pavan Kumar Reddy, B. Nageswara Rao, J. Pavanu Sai. Experimental Analysis Of Thermal Behaviour Of Phase Change Materials In Cooling Applications Of Roof Top Building Slabs. Journal of Polymer and Composites. 2024; 12(03):102-114. Available from: https://journals.stmjournals.com/jopc/article=2024/view=144654




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Regular Issue Subscription Original Research
Volume 12
Issue 03
Received January 21, 2024
Accepted February 6, 2024
Published April 30, 2024