A new property evaluation scheme for mass transfer analysis in fire problems
A simple scheme for the estimation of average thermo-physical properties has been presented. Properties such as thermal conductivity and specific heat have been calculated at suitable temperatures, which are functions of the ambient and the adiabatic flame temperatures. These have been successfully...
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| Veröffentlicht in: | Fire safety journal 2009-05, Vol.44 (4), p.652-658 |
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| container_issue | 4 |
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| container_title | Fire safety journal |
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| creator | Rangwala, Ali S. Raghavan, Vasudevan Sipe, Joel E. Okano, Terumi |
| description | A simple scheme for the estimation of average thermo-physical properties has been presented. Properties such as thermal conductivity and specific heat have been calculated at suitable temperatures, which are functions of the ambient and the adiabatic flame temperatures. These have been successfully employed in the empirical correlations available in standard combustion text books for the estimation of burning rate constants and flame stand-off distances in the combustion of liquid and solid fuels. The average thermal conductivity is estimated as the thermal conductivity of standard air calculated at a temperature given as one-third of the sum of ambient and the adiabatic flame temperatures. The average specific heat is calculated as the specific heat of standard air at the adiabatic flame temperature itself. Extensive validation of the scheme with the experimental data is presented employing several liquid fuels and a solid fuel. |
| doi_str_mv | 10.1016/j.firesaf.2009.01.001 |
| format | Article |
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Properties such as thermal conductivity and specific heat have been calculated at suitable temperatures, which are functions of the ambient and the adiabatic flame temperatures. These have been successfully employed in the empirical correlations available in standard combustion text books for the estimation of burning rate constants and flame stand-off distances in the combustion of liquid and solid fuels. The average thermal conductivity is estimated as the thermal conductivity of standard air calculated at a temperature given as one-third of the sum of ambient and the adiabatic flame temperatures. The average specific heat is calculated as the specific heat of standard air at the adiabatic flame temperature itself. 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Extensive validation of the scheme with the experimental data is presented employing several liquid fuels and a solid fuel.</description><subject>Applied sciences</subject><subject>B-number</subject><subject>Building technical equipments</subject><subject>Buildings</subject><subject>Buildings. Public works</subject><subject>Computation methods. Tables. Charts</subject><subject>Constant properties</subject><subject>Droplet combustion</subject><subject>Evaporation constant</subject><subject>Exact sciences and technology</subject><subject>Fire behavior of materials and structures</subject><subject>Fire protection</subject><subject>Nusselt number</subject><subject>Structural analysis. 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| fulltext | fulltext |
| identifier | ISSN: 0379-7112 |
| ispartof | Fire safety journal, 2009-05, Vol.44 (4), p.652-658 |
| issn | 0379-7112 |
| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Applied sciences B-number Building technical equipments Buildings Buildings. Public works Computation methods. Tables. Charts Constant properties Droplet combustion Evaporation constant Exact sciences and technology Fire behavior of materials and structures Fire protection Nusselt number Structural analysis. Stresses |
| title | A new property evaluation scheme for mass transfer analysis in fire problems |
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