Abstract
New trends in building energy efficiency include thermal storage in building elements that can be achieved via the incorporation of Phase Change Materials (PCM). Gypsum plasterboards enhanced with micro-encapsulated paraffin-based PCM have recently become commercially available. This work aims to shed light on the fire safety aspects of using such innovative building materials, by means of an extensive experimental and numerical simulation study. The main thermo-physical properties and the fire behaviour of PCM-enhanced plasterboards are investigated, using a variety of methods (i.e. thermo-gravimetric analysis, differential scanning calorimetry, cone calorimeter, scanning electron microscopy). It is demonstrated that in the high temperature environment developing during a fire, the PCM paraffins evaporate and escape through the failed encapsulation shells and the gypsum plasterboard's porous structure, emerging in the fire region, where they ignite increasing the effective fire load. The experimental data are used to develop a numerical model that accurately describes the fire behaviour of PCM-enhanced gypsum plasterboards. The model is implemented in a Computational Fluid Dynamics (CFD) code and is validated against cone calorimeter test results. CFD simulations are used to demonstrate that the use of paraffin-based PCM-enhanced construction materials may, in case the micro-encapsulation shells fail, adversely affect the fire safety characteristics of a building.
| Original language | English |
|---|---|
| Pages (from-to) | 50-58 |
| Journal | Fire Safety Journal |
| Volume | 72 |
| Early online date | 11 Feb 2015 |
| DOIs | |
| Publication status | Published - Feb 2015 |
Bibliographical note
Reference text: [1] L.F. Cabeza, A. Castell, C. Barreneche, A. de Gracia, A.I. Fernandez, Materialsused as PCM in thermal energy storage in buildings: a review, Renew. Sustain.
Energy Rev. 15 (2011) 1675–1695.
[2] D. Zhou, C.Y. Zhao, Y. Tina, Review on thermal energy storage with phase
change materials (PCMs) in building applications, Appl. Energy 92 (2012)
593–605.
[3] F. Agyenim, N. Hewitt, P. Eames, M. Smyth, A review of materials, heat transfer
and phase change problem formulation for latent heat thermal energy storage
systems (LHTESS), Renew. Sustain. Energy Rev. 14 (2010) 615–628.
[4] C. Voelker, O. Kornadt, M. Ostry, Temperature reduction due to the application
of phase change materials, Energ. Build. 40 (2008) 937–944.
[5] N. Soares, J.J. Costa, A.R. Gaspar, P. Santos, Review of passive PCM latent heat
thermal energy storage systems towards buildings’ energy efficiency, Energy
Build. 59 (2013) 82–103.
[6] N. Shulka, A. Fallahi, J. Kosny, Performance characterization of PCM impregnated
gypsum board for building applications, Energy Procedia 30 (2012)
370–379.
[7] D. Banu, D. Feldman, F. Haghighat, J. Paris, D. Hawes, Energy-storing wallboard:
flammability tests, J. Mater. Civil Eng. 10 (1998) 98–105.
[8] C.Y. Wang, C.N. Ang, Effect of moisture transfer on specific heat of gypsum
plasterboard at high temperatures, Constr. Build. Mater. 16 (2004) 505–515.
[9] D.A. Kontogeorgos, M.A. Founti, Numerical investigation of simultaneous heat
and mass transfer mechanisms occurring in a gypsumboard exposed to fire,
Appl. Therm. Eng. 30 (2010) 1461–1469.
[10] D.I. Kolaitis, M.A. Founti, Development of a solid reaction kinetics gypsum
dehydration model appropriate for CFD simulation of gypsum plasterboard
wall assemblies exposed to fire, Fire Saf. J. 58 (2013) 151–159.
[11] V.V. Tyagi, S.C. Kaushik, S.K. Tyagi, T. Akiyama, Development of phase change
materials based microencapsulated technology for buildings: a review, Renew.
Sustain Energy Rev. 15 (2011) 1373–1391.
[12] A. Sharma, V.V. Tyagi, C.R. Chen, D. Buddhi, Review on thermal energy storage
with phase change materials and applications, Renew. Sustain. Energy Rev. 13
(2009) 318–345.
[13] P. Sittisart, M.M. Farid, Fire retardants for phase change materials, Appl. Energy
88 (2011) 3140–3145.
[14] Y. Cai, Y. Hu, L. Song, Y. Tang, R. Yang, Y. Zhang, Z. Chen, W. Fan, Flammability
and thermal properties of high density polyethylene/paraffin hybrid as a formstable
phase change material, J. Appl. Polym. Sci. 99 (2006) 1320–1327.
[15] M. Hunger, A.G. Entrop, I. Mandilaras, H.J.H. Brouwers, M.A. Founti, The behavior
of self-compacting concrete containing micro-encapsulated phase
change materials, Cement Concrete Compos. 3 (2009) 731–743.
[16] M.N.A. Hawlader, M.S. Uddin, M.M. Khin, Microencapsulated PCM thermalenergy
storage system, Appl. Energy 74 (2003) 195–202.
[17] W.D. Walton, P.H. Thomas, Estimating temperatures in compartment fires, in:
P.J. DiNenno (Ed.), SFPE Handbook of Fire Protection Engineering, National Fire
Protection Association, Quincy, MA, 1995.
[18] L. Sanchez-Silva, J.F. Rodriguez, A. Romero, A.M. Borreguero, M. Carmona,
P. Sanchez, Microencapsulation of PCMs with a styrene-methyl methacrylate
copolymer shell by suspension-like polymerisation, Chem. Eng. J. 157 (2010)
216–222.
[19] H. Willax, B. Katz, M.R. Jung, S. Altmann, E. Jahns. Gypsum wall board containing
micro-encapsulated latent heat accumulator materials, Patent Number
20120196116, 2 August 2012.
[20] W.W. Wendlandt, Thermal Analysis, 3rd ed., John Wiley and Sons, New York,
1986.
[21] B.M.E. Brown, Introduction to Thermal Analysis: Techniques and Applications,
2nd ed., Kluwer Academic Publishers, Dordrecht, 2001.
[22] B. Wundelich, Thermal Analysis, Academic Press Inc., UK, 1990.
[23] C.L. Yaws, Handbook of Thermodynamic and Physical Properties of Chemical
Compounds, Knovel, New York, 2003.
[24] ISO 5660-1:1993, Fire tests-Reaction to Fire Heat Release – Part 1: Rate of Heat
Release from Building Products (cone calorimeter method), International
Standards Organization, Geneva, Switzerland, 1993.
[25] B. Schartel, T.R. Hull, Development of fire-retarded materials: interpretation of
cone calorimeter data, Fire Mater. 31 (2007) 327–354.
[26] L. Zhao, N.A. Dembsey, Measurement uncertainty analysis for calorimetry
apparatuses, Fire Mater. 32 (1) (2008) 1–26.
[27] J.R. McGraw, F.W. Mowrer, Flammability and dehydration of painted gypsum
wallboard subjected to fire heat fluxes, Fire Saf. Sci. 6 (2000) 1003–1014.
[28] K. McGrattan, S. Hostikka, R. McDermott, J. Floyd, C. Weinschenk, K. Overholt,
Fire Dynamics Simulator User's Guide, 6th ed., NIST Special Publication 1019,
2013.
[29] K. McGrattan, S. Hostikka, R. McDermott, J. Floyd, C. Weinschenk, K. Overholt,
Fire Dynamics Simulator Technical Reference Guide, 6th ed., NIST Special
Publication 1018, 2013.
[30] R.K.K. Yuen, G.H. Yeoh, G. Vahl Davis, E. Leonardi, Modelling the pyrolysis of
wet wood – II. Three-dimensional cone calorimeter simulation, Heat Mass
Transf. 50 (2009) 4387–4399.
[31] S. Vyazovkin, A.K. Burnham, J.M. Criado, L.A. Perez-Maqueda, C. Popescu,
N. Sbirrazuoli, ICTAC Kinetics Committee recommendations for performing
kinetic computations on thermal analysis data, Thermochim. Acta 520 (2011)
1–19.
[32] V. Novozhilov, B. Moghtaderi, D.F. Fletcher, J.H. Kent, Computational fluid
dynamics modelling of wood combustion, Fire Saf. J. 36 (1996) 69–84.
[33] F. Kempel, B. Schartel, G.T. Linteris, S.I. Stoliarov, R.E. Lyon, R.N. Waltes,
A. Hofman, Prediction of the mass loss rate of polymer materials: Impact of
residue formation, Combust. Flame 159 (2012) 2974–2984.
[34] D.M. Marquis, M. Pavageau, E. Guillaume, C. Chivas-Joly, Modelling decomposition
and fire behaviour of small samples of a glass-reinforced polyester/
balsa-cored sandwich material, Fire Mater. 37 (2012) 413–439.
[35] Y.M. Ferng, C.H. Liu, Investigation of the burning characteristics of electric
cables used in the nuclear power plant by way of 3-D transient FDS code, Nucl.
Eng. Des. 241 (2011) 88–94.
Keywords
- Gypsum plasterboard
- Phase change material
- PCM
- Fire
- Fire safety
- CFD
- TGA
- DSC
- Cone calorimeter
- SEM