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Thermal conductivity measurements with different methods: a procedure for the estimation of the retardation time

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Abstract

As it is known that nowadays, reduction of the heating energy loss of buildings is achieved mainly by thermal insulation. This is one of the most important objectives of buildings constructions and retrofitting of buildings. Therefore research, calculation and simulation on the energy efficiency of buildings are of great importance. In this paper we give an expansive presentation about the measurements of the thermal conductivity, heat flux and thermal resistance of individual insulation materials as well as in-built wall constructions executed in our laboratory. Thermal diffusion coefficients and wall delaying ability of the systems will be given resulting from the measurements. First of all, thermal conductivity measurement results of individual insulation materials achieved by a Holometrix type Heat flow Meter will be presented. Afterwards, two different steady-state methods for measuring thermal resistance of wall structures (Calibration hot box method and Heat Flux measurements by Hukseflux apparatus) will be introduced. These measurements were accomplished through either an inbuilt plaster/brick/plaster wall construction insulated internally at the first time and later externally with different materials. The main target of this paper is the presented theoretical procedure for the estimation of the retardation time of wall structures. Furthermore in this publication the determination of thermal performance of Expanded Polystyrene Insulation applied to walls in building constructions can also be found. Moreover numerical predictions for thermal resistance are presented. Besides, infrared thermographs were used to visualise the insulation ability of the layer structures.

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References

  1. Carslaw HS, Jaeger JC (2000) Conduction of heat in solids, 2nd edn. Oxford Science Publications, New York

    Google Scholar 

  2. Changhai P, Zhishen W (2008) Thermoelectricity analogy method for computing the periodic heat transfer in external building envelopes. Appl Energy 85:735–754

    Article  Google Scholar 

  3. Dolado P, Ana Lazaro A, Marin JM, Zalba B (2011) Characterization of melting and solidification in a real scale PCM-air heat exchanger: numerical model and experimental validation. Energy Convers Manag 52(4):1890–1907

    Article  Google Scholar 

  4. El-Sebaii AA, Al-Ghamdi AA, Al-Hazmi FS, Adel S (2009) Thermal performance of a single basin solar still with PCM as a storage medium. Appl Energy 86(7–8):1187–1195

    Article  Google Scholar 

  5. Farhranieh B, Sattari S (2006) Simulation of energy saving in Iranian buildings using integrative modelling for insulation. Renew Energy 31:417–425

    Article  Google Scholar 

  6. Goia F, Perino M, Haase M (2012) A numerical model to evaluate the thermal behaviour of PCM glazing system configurations. Energy Build 54:141–153

    Article  Google Scholar 

  7. Gustafsson SE, Karawacki E, Chohan MA (1986) Thermal transport studies of electrically conducting materials using the transient hot-strip technique. J Phys D Appl Phys 19:727–735

    Article  Google Scholar 

  8. Hall PM, Morabito JM (1976) A formalism for determining grain boundary diffusion coefficients using surface analysis. Surf Sci 59:624

    Article  Google Scholar 

  9. He Y (2005) Rapid thermal conductivity measurement with a hot disk sensor part 1. Theoretical considerations. Tehrmochim Acta 436:122–129

    Article  Google Scholar 

  10. Hourston DJ, Song M, Hammiche A, Pollock HM, Reading M (1996) Modulated differential scanning calorimetry: 2. Studies of physical ageing in polystyrene. Polymer 37(2):243–247

    Article  Google Scholar 

  11. Lakatos A, Kalmar F (2013) Analysis of water sorption and thermal conductivity of expanded polystyrene insulation materials. Build Serv Eng Res Technol 34(4):407–416. doi:10.1177/0143624412462043

    Article  Google Scholar 

  12. Lakatos A, Kalmar F (2013) Investigation of thickness and density dependence of thermal conductivity of expanded polystyrene insulation materials. Mater Struct 46(7):1101–1105. doi:10.1617/s11527-012-9956-5

    Article  Google Scholar 

  13. Lakatos A, Erdelyi G, Langer GA, Daroczi L, Vad K, Csik A, Beke DL (2010) Investigations of diffusion kinetics in Si/Ta/Cu/W and Si/Co/Ta systems by secondary neutral mass spectrometry. Vacuum 84(7):953–957

    Article  Google Scholar 

  14. McCormick HW, Brower FM, Kin L (1959) The effect of molecular weight distribution on the physical properties of polystyrene. J Polym Sci 39(135):87–100

    Article  Google Scholar 

  15. Mihlayanlar E, Dilmac S, Güner A (2008) Analysis of the effect of production process parameters and density of expanded polystyrene insulation boards on mechanical properties and thermal conductivity. Mater Des 29:344–352

    Article  Google Scholar 

  16. Morgan AB, Harris RH, Kashiwagi T, Chyall LJ, Gilman JW (2002) Flammability of polystyrene layered silicate (clay) nanocomposites: carbonaceous char formation. Fire Mater 26(6):247–253

    Article  Google Scholar 

  17. Niachou A, Papakonstantinou K, Santamouris M, Tsangrassoulis A, Mihalakakou G (2001) Analysis of the green roof thermal properties and investigation of its energy performance. Energy Build 33(7):719–729

    Article  Google Scholar 

  18. Nussbaumer T, Wakili K, Tanner Ch (2006) Experimental and numerical investigation of the thermal performance of a protected vacuum-insulation system applied to a concrete wall. Appl Energy 83:841–855

    Article  Google Scholar 

  19. Ozkahraman HT, Bolatturk A (2006) The use of tuff stone cladding in buildings for energy conservation. Constr Build Mater 20:435–444

    Article  Google Scholar 

  20. Tay NHS, Belusko M, Bruno F (2012) Experimental investigation of tubes in a phase change thermal energy storage system. Appl Energy 90(1):288–297

    Article  Google Scholar 

  21. Waszink JH, Hannen GEM, Hefsoni G (eds) (1990) Proceedings of the ninth international heat transfer conference, vol 3, Jerusalem, Hemisphere, New York, pp 193–198

  22. Xiao M, Sun L, Liu J, Li Y, Gong K (2006) Synthesis and properties of polystyrene/graphite nanocomposites. Polymer 43(8):2245–2248

    Article  Google Scholar 

  23. Xiao W, Wang X, Zhang Y (2009) Analytical optimization of interior PCM for energy storage in a lightweight passive solar room. Appl Energy 86(10):2013–2018

    Article  Google Scholar 

  24. Yucel KT, Basyigit C, Ozel C (2009) Thermal Insulation properties of expanded polystyrene as construction and insulating materials. http://zenonpanel.com.mk/al/wp-content/uploads/2009/06/Thermal-Insulation-properties.PDF. Accessed 28 Nov 2011

  25. Zamel N, Becker J, Wiegmann A (2012) Estimating the thermal conductivity and diffusion coefficient of the microporous layer of polymer electrolyte membrane fuel cells. J Power Sources 207:70–80

    Article  Google Scholar 

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Acknowledgments

The work of the research group is supported by the TÁMOP-4.2.2.A-11/1/KONV-2012-0041 project. The project is co-financed by the European Union and the European Social Fund. “The research of Akos Lakatos was realized in the frames of TÁMOP 4.2.4. A/2-11-1-2012-0001 “National Excellence Program—Elaborating and operating an inland student and researcher personal support system convergence program”. The project was subsidized by the European Union and co-financed by the European Social Fund.”

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Authors and Affiliations

  1. Faculty of Engineering, Department of Building Services and Building Engineering, University of Debrecen, Ótemető utca 2-4. 302, Debrecen, 4028, Hungary

    Ákos Lakatos, Imre Csáky & Ferenc Kalmár

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  1. Ákos Lakatos
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  2. Imre Csáky
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  3. Ferenc Kalmár
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Correspondence to Ákos Lakatos.

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Lakatos, Á., Csáky, I. & Kalmár, F. Thermal conductivity measurements with different methods: a procedure for the estimation of the retardation time. Mater Struct 48, 1343–1353 (2015). https://doi.org/10.1617/s11527-013-0238-7

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  • DOI: https://doi.org/10.1617/s11527-013-0238-7

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