Full-Scale CFD Simulation of Gypsum Plasterboard Wall Assemblies Exposed to Fire: Effects of Gypsum Dehydration

Dionysios Kolaitis, Eleni Asimakopoulou, Maria Founti

Research output: Contribution to conferencePaper

Abstract

Gypsum “dehydration” phenomena, occurring when gypsum plasterboard wall assemblies are exposed to a high temperature environment, result in water vapour production and subsequent dispersion in the fire compartment; however, these phenomena are commonly neglected in relevant Computational Fluid Dynamics (CFD) simulations. In order to investigate the impact of gypsum dehydration in full-scale CFD simulations of gypsum plasterboard wall assemblies, the FDS code is used to simulate a two-storey residential building, exposed to a typical domestic fire scenario. A structural steel frame is used in the investigated building, combined with gypsum plasterboard wall assemblies. The effects of gypsum dehydration are taken into account by using a dedicated solid reaction kinetics model; the obtained predictions are compared to a benchmark test case where no such phenomena are modelled. The performed simulations clearly indicate that the explicit simulation of gypsum dehydration
phenomena has a prominent effect on CFD predictions; the developed solid reaction kinetics model allows, for the first time, the CFD simulation of gypsum dehydration induced water vapour production and dispersion in the fire compartment.

Conference

ConferenceInternational Conference of Fire Computer Modeling
CountrySpain
CitySantander
Period18/10/1219/10/12
Internet address

Fingerprint

Gypsum
Dehydration
Computational fluid dynamics
Fires
Computer simulation
Reaction kinetics
Water vapor
Steel

Keywords

  • CFD
  • Gypsum dehydration
  • gypsum plasterboard
  • Fire

Cite this

Kolaitis, D., Asimakopoulou, E., & Founti, M. (2012). Full-Scale CFD Simulation of Gypsum Plasterboard Wall Assemblies Exposed to Fire: Effects of Gypsum Dehydration. Paper presented at International Conference of Fire Computer Modeling, Santander, Spain.
Kolaitis, Dionysios ; Asimakopoulou, Eleni ; Founti, Maria. / Full-Scale CFD Simulation of Gypsum Plasterboard Wall Assemblies Exposed to Fire: Effects of Gypsum Dehydration. Paper presented at International Conference of Fire Computer Modeling, Santander, Spain.20 p.
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abstract = "Gypsum “dehydration” phenomena, occurring when gypsum plasterboard wall assemblies are exposed to a high temperature environment, result in water vapour production and subsequent dispersion in the fire compartment; however, these phenomena are commonly neglected in relevant Computational Fluid Dynamics (CFD) simulations. In order to investigate the impact of gypsum dehydration in full-scale CFD simulations of gypsum plasterboard wall assemblies, the FDS code is used to simulate a two-storey residential building, exposed to a typical domestic fire scenario. A structural steel frame is used in the investigated building, combined with gypsum plasterboard wall assemblies. The effects of gypsum dehydration are taken into account by using a dedicated solid reaction kinetics model; the obtained predictions are compared to a benchmark test case where no such phenomena are modelled. The performed simulations clearly indicate that the explicit simulation of gypsum dehydrationphenomena has a prominent effect on CFD predictions; the developed solid reaction kinetics model allows, for the first time, the CFD simulation of gypsum dehydration induced water vapour production and dispersion in the fire compartment.",
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note = "International Conference of Fire Computer Modeling ; Conference date: 18-10-2012 Through 19-10-2012",
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Kolaitis, D, Asimakopoulou, E & Founti, M 2012, 'Full-Scale CFD Simulation of Gypsum Plasterboard Wall Assemblies Exposed to Fire: Effects of Gypsum Dehydration' Paper presented at International Conference of Fire Computer Modeling, Santander, Spain, 18/10/12 - 19/10/12, .

Full-Scale CFD Simulation of Gypsum Plasterboard Wall Assemblies Exposed to Fire: Effects of Gypsum Dehydration. / Kolaitis, Dionysios; Asimakopoulou, Eleni; Founti, Maria.

2012. Paper presented at International Conference of Fire Computer Modeling, Santander, Spain.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Full-Scale CFD Simulation of Gypsum Plasterboard Wall Assemblies Exposed to Fire: Effects of Gypsum Dehydration

AU - Kolaitis, Dionysios

AU - Asimakopoulou, Eleni

AU - Founti, Maria

PY - 2012

Y1 - 2012

N2 - Gypsum “dehydration” phenomena, occurring when gypsum plasterboard wall assemblies are exposed to a high temperature environment, result in water vapour production and subsequent dispersion in the fire compartment; however, these phenomena are commonly neglected in relevant Computational Fluid Dynamics (CFD) simulations. In order to investigate the impact of gypsum dehydration in full-scale CFD simulations of gypsum plasterboard wall assemblies, the FDS code is used to simulate a two-storey residential building, exposed to a typical domestic fire scenario. A structural steel frame is used in the investigated building, combined with gypsum plasterboard wall assemblies. The effects of gypsum dehydration are taken into account by using a dedicated solid reaction kinetics model; the obtained predictions are compared to a benchmark test case where no such phenomena are modelled. The performed simulations clearly indicate that the explicit simulation of gypsum dehydrationphenomena has a prominent effect on CFD predictions; the developed solid reaction kinetics model allows, for the first time, the CFD simulation of gypsum dehydration induced water vapour production and dispersion in the fire compartment.

AB - Gypsum “dehydration” phenomena, occurring when gypsum plasterboard wall assemblies are exposed to a high temperature environment, result in water vapour production and subsequent dispersion in the fire compartment; however, these phenomena are commonly neglected in relevant Computational Fluid Dynamics (CFD) simulations. In order to investigate the impact of gypsum dehydration in full-scale CFD simulations of gypsum plasterboard wall assemblies, the FDS code is used to simulate a two-storey residential building, exposed to a typical domestic fire scenario. A structural steel frame is used in the investigated building, combined with gypsum plasterboard wall assemblies. The effects of gypsum dehydration are taken into account by using a dedicated solid reaction kinetics model; the obtained predictions are compared to a benchmark test case where no such phenomena are modelled. The performed simulations clearly indicate that the explicit simulation of gypsum dehydrationphenomena has a prominent effect on CFD predictions; the developed solid reaction kinetics model allows, for the first time, the CFD simulation of gypsum dehydration induced water vapour production and dispersion in the fire compartment.

KW - CFD

KW - Gypsum dehydration

KW - gypsum plasterboard

KW - Fire

M3 - Paper

ER -

Kolaitis D, Asimakopoulou E, Founti M. Full-Scale CFD Simulation of Gypsum Plasterboard Wall Assemblies Exposed to Fire: Effects of Gypsum Dehydration. 2012. Paper presented at International Conference of Fire Computer Modeling, Santander, Spain.