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TECHNICAL PAPERS: Porous Media, Particles, and Droplets

Experimental Study of Water Sprays for the Attenuation of Fire Thermal Radiation

[+] Author and Article Information
S. Dembele, J. X. Wen

Combustion and Fire Modelling Group, School of Mechanical, Aeronautical, and Production Engineering, Kingston University, Roehampton Vale, Friars Avenue, London SW15 3DW, England

J.-F. Sacadura

Centre de Thermique de Lyon (CETHIL), Ba⁁timent 404, 20 avenue Albert Einstein, 69621 Villeurbanne Cedex, France

J. Heat Transfer 123(3), 534-543 (Nov 15, 2000) (10 pages) doi:10.1115/1.1371921 History: Received November 08, 1999; Revised November 15, 2000
Copyright © 2001 by ASME
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References

Thomas,  P. H., 1952, “Absorption and Scattering of Radiation by Water Sprays of Large Drops,” Br. J. Appl. Phys., 3, pp. 385–393.
Ravigururajan,  T. S., and Beltan,  M. R., 1989, “A Model for Attenuation of Fire Radiation Through Water Droplets,” Fire Saf. J., 15, pp. 171–181.
Coppalle,  A., Nedelka,  D., and Bauer,  B., 1993, “Fire Protection: Water Curtains,” Fire Saf. J., 20, pp. 241–255.
Dembele,  S., Delmas,  A., and Sacadura,  J.-F., 1997, “A Method for Modeling the Mitigation of Hazardous Fire Thermal Radiation by Water Spray Curtains,” ASME J. Heat Transfer, 119, pp. 746–753.
Dembele, S., 1998, “Mitigation of Hydrocarbon Fires Radiation by Water Spray Curtains: Modelling and Experimental Validations,” Ph.D. dissertation (French), INSA Lyon, No. 98 ISAL 0043, Lyon, France.
St. Georges, M., 1993, “Hydrodynamic Study of Water Spray Curtains,” Ph.D. dissertation (French), University Claude Bernard, Lyon, France.

Figures

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Protecting plants with water sprays technique
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Laboratory experimental water spray facility and measurement parameters
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The Fourier spectrometer and the detection system
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Characteristics of the spray nozzles tested
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Standard deviation curves for the spray nozzle TG03
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Influence of the vertical position on the transmittance spectra of a single sprayer TG03
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Influence of the pressure on the transmittance of a single spray TG03
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Influence of the pressure on the transmittance of a single spray TG05
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Droplets volumetric fraction distribution of a sprayer TG03
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Mie phase function of a water droplet at the wavelength λ=10 μm
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Angular distribution of scattered radiation for a sprayer TG03
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Influence of the pressure on the transmittance of 2 sprayers TG03 in series. Spacing between nozzles 50 mm.
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Influence of the pressure on the transmittance of 3 sprayers TG03 in series
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Influence of the number of nozzles on the optical thickness of the sprayer TG03
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Influence of the number of nozzles on the optical thickness of the sprayer TG05
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Effect of the flow rate on the transmittance spectra of the sprayers TG03 and TG05
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Influence of the pressure on the transmittance of a mixed water spray: TG05-TG03-TG05. Spacing between 2 successive nozzles 50 mm.

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