摘要:

AbstractThe Piloted ignition of six common thermoplastics has been studied by exposing horizontal samples (65 times; 65 times; 6 mm thick) to irradiance levels in the range 10–40 kw m−2. Fine thermocouples were attached to the exposed face and allowed the surface temperature to be monitored continuously. Times to sustained ignition from a small pilot flame and the corresponding surface temperature were recorded. Within experimental error, ignition temperatures showed no systematic dependence on surface area when this was reduced to ca 20 mm square. Times to ignition were dependent not only on radiant intensity but also on the spectral characteristics of the sou

ISSN:0308-0501    

DOI:10.1002/fam.810110402

出版商:John Wiley&Sons Ltd.    

年代:1987

数据来源: WILEY

摘要:

AbstractA simple model for predicting as concentrations, temperature and heat release rate in a room fire was developed. The CO, CO2yield rates and O2yield rates and O2depletion rate were calculated using this model for wood fuel. The calculated values were compared with the experimental ones and a fairly good accuracy was obtained. As this model can apply to any kind of fuel by replacing the assumption for the fuel pyrolysis, it may be useful for evaluating toxic hazards in a room fire.

ISSN:0308-0501    

DOI:10.1002/fam.810110403

出版商:John Wiley&Sons Ltd.    

年代:1987

数据来源: WILEY

摘要:

AbstractQuarter‐scale tests of ten full‐scale room fire tests were conducted by using an existing scaling technique developed at the National Bureau of Standards. Test results confirmed earlier studies which showed that, under constant fire exposure conditions, quarter‐scale room testing ranked interior finish materials in the same order as did full‐scale tests based on their times to achieve room flashover. In general, quarter‐scale tests were less severe and took longer to reach peak room fire buildup because of a lower convective and radiative heat transfer in the quarter‐scale room. These tests also generated more CO per unit mass of material and experienced lower combustion efficiencies than did their corresponding full

ISSN:0308-0501    

DOI:10.1002/fam.810110404

出版商:John Wiley&Sons Ltd.    

年代:1987

数据来源: WILEY

摘要:

AbstractLaboratory tests demonstrated that the intumescence resulting from application of some proprietary flame‐retardant paint and coating systems to timber planks could reduce char formation in the planks by as much as 70% during the first 30 min of exposure to ASTM E–19 fire conditions. Applications of these coating systems to the exposed surfaces of planks used in construction of heavy timber building assemblies should increase the fire resistance of these components by at least 30 min. This would represent a significant increase in the fire resistance of heavy timber roof systems and could extend the use of this type of construction system to many of the non‐residential buildings for which building code authorities presently require fire resistance ratings greater tha

ISSN:0308-0501    

DOI:10.1002/fam.810110405

出版商:John Wiley&Sons Ltd.    

年代:1987

数据来源: WILEY

摘要:

AbstractHaving characterized the current classification of building materials in Scandinavia the use of the International Standards Organization ignitability test for classifying coverings, linings and materials is discussed. Further evidence for the assumption of a linear function for 1/tig(wheretigis the time for sustained surface ignition) versus irradiance was gained for a number of materials, mainly wood‐based. This has been utilized in forecasting the ignitability behaviour in the new test by correlation of classes. Through definition of two borderline segments a simple table giving proposed criteria fortigis obtaine

ISSN:0308-0501    

DOI:10.1002/fam.810110406

出版商:John Wiley&Sons Ltd.    

年代:1987

数据来源: WILEY

ISSN:0308-0501    

DOI:10.1002/fam.810110407

出版商:John Wiley&Sons Ltd.    

年代:1987

数据来源: WILEY

ISSN:0308-0501    

DOI:10.1002/fam.810110408

出版商:John Wiley&Sons Ltd.    

年代:1987

数据来源: WILEY

ISSN:0308-0501    

DOI:10.1002/fam.810110409

出版商:John Wiley&Sons Ltd.    

年代:1987

数据来源: WILEY

ISSN:0308-0501    

DOI:10.1002/fam.810110401

出版商:John Wiley&Sons Ltd.    

年代:1987

数据来源: WILEY