Thermal response characteristics of fire blanket materials

Takahashi, Fumiaki; Abbott, A. A.; Murray, Timothy M.; T’ien, James S.; Olson, Sandra L.

doi:10.1002/fam.2202

Cited by 14 publications

(18 citation statements)

References 25 publications

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“…The pre-oxidized fibres are fully released, and tangled large fibres are released in small pieces of fibres or bunches through tearing; even the single fibre state is shown. Given the poor electrical conductivity of PAN pre-oxidised fibres, which easily produce static in the process of friction with the parts, and in order to carry out the subsequent processing smoothly, pre-oxidised fibres after the opening are required to be evenly sprayed with an antistatic agent, then they are packaged for 24 hours in a plastic bag [20][21][22][23][24].…”

Section: Experiments Schemementioning

confidence: 99%

Influence of the Needle Number on the Heat Insulation Performance of Pre-oxidized Fibre Felts

Zhao

Liu

Liang

2018

Fibres and Textiles in Eastern Europe

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Many factors were needed to be considered to prepare pre-oxidised fibre felts with excellent heat insulation performance, and different production processes showed differences in the heat insulation performance of pre-oxidised fibre felts. In order to probe into the influence of the production process on the heat insulation performance of materials, a large number of experiments were needed to be carried out. For needle-punched nonwoven pre-oxidised fibre felts, web features, needle characteristics and the needle process will all affect the structure of pre-oxidised fibre felts, thus bringing a major influence on the heat insulation performance of pre-oxidised fibre felts. In this paper, the influence of the needle number on the heat insulation performance of pre-oxidised fibre felts was mainly studied. Results showed that an increase in the needle number will cause a decrease in the thickness and gram weight of pre-oxidised fibre felts, and a weakening trend in the heat insulation performance of pre-oxidiaed fibre felts with an increasing needle number at room temperature and at 100-200 °C was shown. Moreover when the needle number was 1 and 2, the pre-oxidised fibre needled felts had good heat insulation performance, and for pre-oxidized fibre felts at different needle numbers with increasing temperature, the temperature difference in a steady state increased linearly.

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Section: Experiments Schemementioning

confidence: 99%

Influence of the Needle Number on the Heat Insulation Performance of Pre-oxidized Fibre Felts

Zhao

Liu

Liang

2018

Fibres and Textiles in Eastern Europe

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“…The RPP test is similar to ASTM F 1939ASTM F (2007, except that the radiant heat source is different. The experimental method is described in more detail in the previous paper (Takahashi et al, 2014).…”

Section: Laboratory Experiments Experimental Methodsmentioning

confidence: 99%

“…In addition to the standard TPP test, a heat flux transducer (HFT) holder is newly fabricated (Takahashi et al, 2014) to measure the through-the-fabric heat-flux and the specimen temperature for the convective or radiative heat source. The HFT holder consists of a water-cooled total (convective plus radiative) heat flux transducer (Medtherm; Gardon Type 64-10G-20 or Schmidt-Boelter Type 64-10-20, 100 or 50 kW/m 2 ), mounted in an insulating ceramic board, a spacer, and a mounting plate.…”

Section: Laboratory Experiments Experimental Methodsmentioning

confidence: 99%

“…The results of the laboratory experiments and a complete list of more than 50 fabrics have been reported previously (Takahashi et al, 2014). Fabrics of four different fiber material groups (aramid, fiberglass, amorphous silica, and pre-oxidized carbon) and their composites are used.…”

Section: Methodsmentioning

confidence: 99%

“…In previous papers (Hsu et al, 2011;Takahashi et al, 2014), thermal response characteristics of more than 50 relatively thin fire blanket materials have been investigated experimentally and selected cases have been analyzed computationally. Each specimen was exposed to a convective or radiant heat flux.…”

Section: Objectivesmentioning

confidence: 99%

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Whole-House Fire Blanket Protection From Wildland-Urban Interface Fires

Takahashi

2019

Front. Mech. Eng.

Self Cite

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Each year, fires in the wildland-urban interface (WUI)-the place where homes and wildlands meet or intermingle-have caused significant damage to communities. To contribute to firefighter and public safety by reducing the risk of structure ignition, fire blankets for wrapping a whole house have been investigated in the laboratory and prescribed wildland fires. The fire blankets aim to prevent structure ignition (1) by blocking firebrands to enter homes through vulnerable spots (gutters, eaves, vents, broken windows, and roofs); (2) by keeping homes from making direct contact with flames of surrounding combustibles (vegetation, mulch, etc.); and (3) by reflecting thermal radiation from a large fire within close range (adjacent burning houses or surface-to-crown forest fires) for a sustained period of time. In the laboratory experiment, two-layer thin fabric assemblies were able to block up to 92% of the convective heat and up to 96% of the radiation (with an aluminized surface). A series of proof-of-concept experiments were conducted by placing instrumented wooden structures, covered with different fire blankets, in various fires in ascending order of size. First, birdhouse-sized boxes were exposed to burning wood pallets in a burn room. Second, wall-and-eave panels were exposed to prescribed fires climbing up slopes with chaparral vegetation in California. Finally, a cedar shed was placed in the passage of the prescribed head fire in the Pine Barrens in New Jersey. The experiments demonstrated both successful performance and technical limitations of thin fire blankets. The key success factors in protecting the WUI structure are (1) the fire blanket's heat-blocking capability, (2) endurance under severe heat-exposure high-wind conditions, and (3) proper installation. Additional studies are needed in the areas of advanced material/layer development, blanket deployment methods, and multi-structure protection strategies.

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Preparation, thermal properties and permeabilities of aluminum‐coated fabrics destined for thermal radiation protective clothing

Zhu

Feng

2020

Fire and Materials

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Summary In this study, radiant reflective, flame retardant and water vapor permeable coatings were fabricated on aramid fabric (AF) for thermal radiation protective clothing by using a simple cost‐effective coating method, which included an aluminum paste, APP‐PER‐MEL and a silk fibroin powder in the TPU solution system. The permeability, flame retardancy, thermal stability, radiative spectral reflectance, as well as RPP of these prepared fabrics were characterized and compared with the pure AF and aluminum‐foiled AF (AF‐AF). Results show that the newly developed aluminized AF had rather high permeability, and the permeable capability would be further enhanced with the additive of silk fibroin powder. The flame retardancy (FR) of the coated fabric sample was also achieved by introducing an intumescent FR system. In contrast to the pure AF, the aluminum‐coated AF provided higher levels of radiation protection in RPP testing. This was further confirmed by the fact that aluminum‐coated AF exhibited comparative high average reflectivities (more than 0.7) in the radiant spectral range of 1547 nm to 2500 nm. Thus, the aluminum‐coated AF prepared by functional coating method exhibit great and competitive practicability in thermal protective clothing due to their excellent moisture comfort and radiant thermal protection.

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Thermal response characteristics of fire blanket materials

Cited by 14 publications

References 25 publications

Influence of the Needle Number on the Heat Insulation Performance of Pre-oxidized Fibre Felts

Influence of the Needle Number on the Heat Insulation Performance of Pre-oxidized Fibre Felts

Whole-House Fire Blanket Protection From Wildland-Urban Interface Fires

Preparation, thermal properties and permeabilities of aluminum‐coated fabrics destined for thermal radiation protective clothing

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