0
Research Papers

Location and Thickness Effect of Two Phase Change Materials Between Layers of Roof on Energy Consumption for Air-Conditioned Room

[+] Author and Article Information
Hamid Hamza, Nisrine Hanchi, Bouchra Abouelkhayrat, Jawad Lahjomri, Abdelaziz Oubarra

Laboratory of Mechanics,
Faculty of Sciences Aïn Chock,
Hassan II University,
Casablanca 20100, Morocco

1Corresponding author.

Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received September 30, 2014; final manuscript received July 6, 2015; published online December 8, 2015. Assoc. Editor: Ziad Saghir.

J. Thermal Sci. Eng. Appl 8(2), 021009 (Dec 08, 2015) (7 pages) Paper No: TSEA-14-1230; doi: 10.1115/1.4031924 History: Received September 30, 2014; Revised July 06, 2015

Thermal discomfort inside building is due to outside climate, especially by excessive solar radiation during summer or by temperature drop during a cold season. The use of phase change materials (PCMs) can reduce this effect by storing heat transmitted by sensible and latent heat. This ensures good situation of thermal comfort throughout the year. In this work, thermal behavior of two roofing systems is studied. One roof that is taken as reference is constituted by usual materials in building. In the second, two PCMs are inserted according to three configurations. The objective of the study is to assess incorporation effect of two PCMs within reference roof and to evaluate the optimum locations to reduce the energy consumption of air-conditioned room. A monodimensional numerical model, validated analytically and experimentally, is used to carry out a parametric analysis to determine the characteristics of the PCMs to be used and their optimal location within the reference roof regardless of the external climate effect. Numerical calculations are performed for three configurations of roof with swapping PCMs. Results show that insertion of PCMs in the roof provides the best energy consumption saving regardless of annual climate change. Reduction in energy consumption of an air-conditioned room depends on the combination of PCMs, their mutual thicknesses, and thermal comfort level.

FIGURES IN THIS ARTICLE
<>
Copyright © 2016 by ASME
Your Session has timed out. Please sign back in to continue.

References

Brousseau, P. , and Lacroix, M. , 1996, “ Study of the Thermal Performance of a Multi-Layer PCM Storage Unit,” Energy Conv. Manage., 37(5), pp. 599–609. [CrossRef]
Pasupathy, A. , Athanasius, L. , Velraj, R. , and Seeniraj, R. V. , 2008, “ Experimental Investigation and Numerical Simulation Analysis on the Thermal Performance of a Building Roof Incorporating Phase Change Material (PCM) for Thermal Management,” Appl. Therm. Eng., 28(5–6), pp. 556–565. [CrossRef]
Abouelkhayrat, B. , Lahjomri, J. , and Oubarra, A. , 2012, “ Study of Latent Accumulator Storage by Heat Transfer Fluid (HTF) and External Heat Source (EHS),” Phys. Chem. News, 66, pp. 56–68.
Alawadhi, E. M. , 2005, “ Temperature Regulator Unit for Fluid Flow in a Channel Using Phase Change Material,” Appl. Therm. Eng., 25(2–3), pp. 435–449. [CrossRef]
Kośny, J. , Biswas, K. , Miller, W. , and Kriner, S. , 2012, “ Field Thermal Performance of Naturally Ventilated Solar Roof With PCM Heat Sink,” Sol. Energy, 86(9), pp. 2504–2514. [CrossRef]
Amir, M. , Lacroix, M. , and Galanis, N. , 1999, “ Comportement Thermique de Dalles Chauffantes Electriques Pour le Stockage Quotidien,” Int. J. Therm. Sci., 38(2), pp. 121–131. [CrossRef]
Zalba, B. , Marı́n, J. M. , Cabeza, L. F. , and Mehling, H. , 2003, “ Review on Thermal Energy Storage With Phase Change: Materials, Heat Transfer Analysis and Applications,” Appl. Therm. Eng., 23(3), pp. 251–283. [CrossRef]
Tatsidjodoung, P. , Pierres, N. L. , and Luo, L. , 2013, “ A Review of Potential Materials for Thermal Energy Storage in Building Applications,” Renewable Sustainable Energy Rev., 18, pp. 327–349. [CrossRef]
Agyenim, F. , Hewitt, N. , Eames, P. , and Smyth, M. , 2010, “ A Review of Materials, Heat Transfer and Phase Change Problem Formulation for Latent Heat Thermal Energy Storage Systems (LHTESS),” Renewable Sustainable Energy Rev., 14(2), pp. 615–628. [CrossRef]
Simard, A. P. , and Lacroix, M. , 2003, “ Study of the Thermal Behavior of A Latent Heat Cold Storage Unit Operating Under Frosting Conditions,” Energy Conv. Manage., 44(10), pp. 1605–1624. [CrossRef]
Ouyang, K. , and Haghighat, F. , 1991, “ A Procedure for Calculating Thermal Response Factors of Multi-Layered Walls-State Space Method,” Build. Environ., 26(2), pp. 173–177. [CrossRef]
Athienitis, A. K. , 1999, “ Thermal Analysis of Buildings in a Mathematical Programming Environment and Applications,” Build. Environ., 34(4), pp. 401–415. [CrossRef]
Yumrutas, R. , Nsal, M. , and Kanoglu, M. , 2005, “ Periodic Solution of Transient Heat Flow Through Multilayer Walls and Flat Roofs by Complex Finite Fourier Transform Technique,” Build. Environ., 40(8), pp. 1117–1125. [CrossRef]
Pasupathy, A. , and Velraj, R. , 2008, “ Effect of Double Layer Phase Change Material in Building Roof for Year Round Thermal Management,” Energy Build., 40(3), pp. 193–203. [CrossRef]
Kuznik, F. , and Virgone, J. , 2009, “ Experimental Investigation of Wallboard Containing Phase Change Material: Data for Validation of Numerical Modeling,” Energy Build., 41(5), pp. 561–570. [CrossRef]
Abouelkhayrat, B. , Hamza, H. , Lahjomri, J. , and Oubarra, A. , 2013, “ Optimum Distribution of Two Different Phase Change Materials Between Various Components of Roof Air-Conditioned Room, Suitable to Reduce Annual Energy Consumption,” Energy Power Eng., 5(10), pp. 628–638. [CrossRef]
Velraj, R. , Anbudurai, K. , Nallusamy, N. , and Cheralathan, M. , 2002, “ PCM Based Thermal Storage System for Building Air Conditioning at Tidel Park, Chennai,” World Renewable Energy Congress WII, Cologne, Germany.
Stetiu, C. , and Feustel, H. E. , 1998, “Phase Change Wallboard and Mechanical Night Ventilation in Commercial Buildings,” Lawrence Berkeley National Laboratory, Berkeley, CA, pp. 3.317–3.324.
Pal, D. , and Joshi, Y. K. , 1998, “ Thermal Management of an Avionics Module Using Solid–Liquid Phase Change Materials,” Thermophys. Heat Transfer, 12(2), pp. 256–262. [CrossRef]
American Society of Heating, Refrigerating and Air-Conditioning Engineers, 1997, ASHRAE Handbook of Fundamentals, ASHRAE, Atlanta, GA, Chap. 26.
Barbaro, S. , Cannistraro, G. , Giaconia, C. , and Orioli, A. , 1988, “ The ASHRAE Clean Sky Model, an Evaluation in the Mediterranean Zone,” Sol. Wind Technol., 1(1), pp. 111–116. [CrossRef]
Alexiades, V. , and Solomon, A. D. , 1993, Mathematical Modeling of Melting and Freezing Processes, Hemisphere Publishing, Washington, DC.

Figures

Grahic Jump Location
Fig. 1

Scheme of reference roof

Grahic Jump Location
Fig. 2

Locations of PCMs inserted in the roof

Grahic Jump Location
Fig. 3

Evolution of solid–liquid interface versus time for Newman problem [22]

Grahic Jump Location
Fig. 4

Temperature profile within PCM during a cycle storage and destorage [6]

Grahic Jump Location
Fig. 5

Combinations of PCMs for comfort temperature Ti = 20 °C

Grahic Jump Location
Fig. 6

Combinations of PCMs for comfort temperature Ti = 18 °C

Grahic Jump Location
Fig. 7

Relative energy deviation according to thicknesses of upper and lower PCMs incorporated in the roof for comfort temperature Ti = 20 °C

Grahic Jump Location
Fig. 8

Relative energy deviation according to thicknesses of upper and lower PCMs incorporated in the roof for comfort temperature Ti = 18 °C

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In