The Impact of Integrating Phase Change Material Upon Indoor Air Temperature in Hot Climates

The aim of this paper is to identify the effect of PCM as a building material of commercial building envelope on the indoor air temperature within a hot climatic context as Egypt. This paper will expose the potentials of using Phase Change Material (PCM) as an integral part of the building process to save energy, where it first introduces the current environmental challenges and identifies the impact of Thermal Energy Storage as a sustainable approach. Two different types of PCM will be tested in an experimental space in Egypt on different building model orientations and different PCM allocations, to test their effect on indoor air temperature. This will be practically examined by DesignBuilder simulation, to explore the possibilities of improving indoor thermal comfort within the studied types. Finally, conducting a set of recommendations for PCM application as a building material within the Egyptian context.

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An Integrated Approach to Assess the Impact of PCM [Phase Change Material] to Reduce the Energy Consumption in Buildings-a Review

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i4.24.21865 ◽

2018 ◽

Vol 7 (4.24) ◽

pp. 100

Author(s):

Mr. K.Pavan Kumar Reddy ◽

Dr. B. Nageswara Rao ◽

Dr. M. Srinivasa Reddy

Keyword(s):

Phase Change ◽

Phase Change Material ◽

Air Temperature ◽

Building Materials ◽

Integrated Approach ◽

Critical Examination ◽

Latent Heat Storage ◽

Change Temperature ◽

The Impact ◽

Change Material

The achievable joining of Phase Change Material [PCM] in building materials has pulled in a lot of examination intrigue overall due to the need on a dangerous atmospheric deviation and further more the capacity of PCMs to reduce vitality utilization in structures owing to their warm vitality stockpiling capacities. As a substance with high warmth of combination, PCM is equipped for putting away and discharging enormous measures of vitality inside the assortment of inert warmt in liquefying and hardening forms at the specific change temperature. For as long as 25 years,critical examination has been attempted on potential utilization of PCMs in concrete. Latent Heat Storage [LHS] aimed a PCM is unbelievably alluring because of its high vitality stockpiling thickness and its isothermal conduct all through the stage change process. Expanding the warm stockpiling ability of a building will upgrade the human solace by diminishing the recurrence of inside air temperature swings all together that the inside air temperature is nearer to the pre defined temperature for a broadened measure of time.

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Application Study of Nanoparticle-Enhanced Phase Change Material in Ceiling Board

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.150-151.723 ◽

2010 ◽

Vol 150-151 ◽

pp. 723-726 ◽

Cited By ~ 3

Author(s):

Cha Xiu Guo

Keyword(s):

Phase Change ◽

Phase Change Material ◽

Air Temperature ◽

Indoor Air ◽

Phase Change Materials ◽

Application Study ◽

Alumina Nanoparticle ◽

Phase Fields ◽

Change Material ◽

Porosity Model

The application of phase change materials (PCMs) is very promising in buildings because it allows the storage and discharge of considerable quantities of cooling and heating energy, dumping the air temperature swings within the building so that the indoor air temperature is closer to the desired temperature for a longer period of time. In order to account for the good characteristics of Alumina nanoparticle-in-paraffin as phase change material, based on enthalpy-porosity model and numerical analysis, detailed phase fields and heat flux are obtained, compared with that of pure paraffin. And study demonstrates that room with ENPCM ceiling is a good way of saving cool energy in summer.

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Numerical Simulation of the Impact of the Heat Source Position on Melting of a Nano-Enhanced Phase Change Material

Nanomaterials ◽

10.3390/nano11061425 ◽

2021 ◽

Vol 11 (6) ◽

pp. 1425

Author(s):

Tarek Bouzennada ◽

Farid Mechighel ◽

Kaouther Ghachem ◽

Lioua Kolsi

Keyword(s):

Heat Transfer ◽

Phase Change ◽

Phase Change Material ◽

Numerical Study ◽

Melting Rate ◽

Heat Transfer Fluid ◽

Commercial Code ◽

Tube Position ◽

The Impact ◽

Change Material

A 2D-symmetric numerical study of a new design of Nano-Enhanced Phase change material (NEPCM)-filled enclosure is presented in this paper. The enclosure is equipped with an inner tube allowing the circulation of the heat transfer fluid (HTF); n-Octadecane is chosen as phase change material (PCM). Comsol-Multiphysics commercial code was used to solve the governing equations. This study has been performed to examine the heat distribution and melting rate under the influence of the inner-tube position and the concentration of the nanoparticles dispersed in the PCM. The inner tube was located at three different vertical positions and the nanoparticle concentration was varied from 0 to 0.06. The results revealed that both heat transfer/melting rates are improved when the inner tube is located at the bottom region of the enclosure and by increasing the concentration of the nanoparticles. The addition of the nanoparticles enhances the heat transfer due to the considerable increase in conductivity. On the other hand, by placing the tube in the bottom area of the enclosure, the liquid PCM gets a wider space, allowing the intensification of the natural convection.

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Latent Heat Thermal Storage of Nano-Enhanced Phase Change Material Filled by Copper Foam with Linear Porosity Variation in Vertical Direction

Energies ◽

10.3390/en14051508 ◽

2021 ◽

Vol 14 (5) ◽

pp. 1508

Author(s):

Mohammad Ghalambaz ◽

Mohammad Shahabadi ◽

S. A. M Mehryan ◽

Mikhail Sheremet ◽

Obai Younis ◽

...

Keyword(s):

Natural Convection ◽

Phase Change ◽

Phase Change Material ◽

Metal Foam ◽

Vertical Direction ◽

Melting Time ◽

Copper Foam ◽

Average Porosity ◽

The Impact ◽

Change Material

The melting flow and heat transfer of copper-oxide coconut oil in thermal energy storage filled with a nonlinear copper metal foam are addressed. The porosity of the copper foam changes linearly from bottom to top. The phase change material (PCM) is filled into the metal foam pores, which form a composite PCM. The natural convection effect is also taken into account. The effect of average porosity; porosity distribution; pore size density; the inclination angle of enclosure; and nanoparticles’ concentration on the isotherms, melting maps, and the melting rate are investigated. The results show that the average porosity is the most important parameter on the melting behavior. The variation in porosity from 0.825 to 0.9 changes the melting time by about 116%. The natural convection flows are weak in the metal foam, and hence, the impact of each of the other parameters on the melting time is insignificant (less than 5%).

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