Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Gunnar Heskestad"'
Autor:
Gunnar Heskestad
Publikováno v:
SFPE Handbook of Fire Protection Engineering ISBN: 9781493925643
Practically all fires go through an important, initial stage in which a coherent, buoyant gas stream rises above a localized volume undergoing combustion into surrounding space of essentially uncontaminated air. This stage begins at ignition, continu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5619d9434b0903701f91799a19fff7a8
https://doi.org/10.1007/978-1-4939-2565-0_13
https://doi.org/10.1007/978-1-4939-2565-0_13
Autor:
Gunnar Heskestad
Publikováno v:
Fire Safety Journal. 41:343-348
Responding to a challenge raised with respect to a 1989 revision of a 1979 paper on the ceiling jet of t-squared fires, we have measured the heat of combustion in the growth phase of wood cribs made of sugar pine, the test fuel in the original work,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::142924d49654e1b0642d7891a0c0d60c
https://doi.org/10.1016/j.firesaf.2006.01.008
https://doi.org/10.1016/j.firesaf.2006.01.008
Autor:
Gunnar Heskestad
Publikováno v:
Fire Safety Journal. 39:358-374
This paper describes a reduced-scale study of the contamination field (“smoke”) arising from a fire source in a space where air normally flows vertically at uniform velocity in a near-laminar state from ceiling to floor, as in many industrial cle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::199e60f43df28a752a31824c81a43756
https://doi.org/10.1016/j.firesaf.2004.02.002
https://doi.org/10.1016/j.firesaf.2004.02.002
Autor:
Gunnar Heskestad
Publikováno v:
Fire Safety Journal. 38:301-317
Extinction in open space of flames from pool fires by downwardly directed water sprays has been investigated on two linear scales, one three times larger than the other. Circular pool fires were employed as fire sources, mostly in the form of gas dis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2ea2c37c50b5a4aba0bce8c84562770
https://doi.org/10.1016/s0379-7112(02)00085-1
https://doi.org/10.1016/s0379-7112(02)00085-1
Autor:
Gunnar Heskestad
Publikováno v:
Fire Safety Journal. 37:535-548
Scaling relations for (dry) compartment fires have been extended to include interactions of water sprays with the gas phase, including flames. All important interactions scale properly, except attenuation of thermal radiation by the sprays. Methods o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8985b3c4c4ab230d904806f14b413b64
https://doi.org/10.1016/s0379-7112(02)00012-7
https://doi.org/10.1016/s0379-7112(02)00012-7
Autor:
Gunnar Heskestad
Publikováno v:
Fire Safety Journal. 36:201-204
Recent measurements of rise times of plumes from suddenly initiated steady fires versus observation height have been expressed as a constant dimensionless rise time. Rise times deduced from the literature for t-squared, power-law fire growth have als
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2371e64f4e06ec90480087ea17acf64
https://doi.org/10.1016/s0379-7112(00)00061-8
https://doi.org/10.1016/s0379-7112(00)00061-8
Autor:
Gunnar Heskestad
Publikováno v:
Combustion and Flame. 118:51-60
Literature data on flame heights of turbulent jet diffusion flames are examined in ratios to flame heights of purely buoyant turbulent diffusion flames. The flame height ratio is found to be a function of the gas release momentum in ratio to the mome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c421ac94ef32bb95466df30f59bb1bc4
https://doi.org/10.1016/s0010-2180(98)00161-8
https://doi.org/10.1016/s0010-2180(98)00161-8
Autor:
Gunnar Heskestad
Publikováno v:
Fire Safety Journal. 42:240-242
Scaling relations for the initial convective environment generated by power-law fires in geometrically similar spaces are derived, comprising functional relations for nondimensional temperature rise and gas velocity as functions of nondimensional tim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a30c3cb7aa55287f2e3df0aec6d2c0c5
https://doi.org/10.1016/j.firesaf.2006.12.004
https://doi.org/10.1016/j.firesaf.2006.12.004
Autor:
Gunnar Heskestad, Torgrim Log
Publikováno v:
Fire Safety Journal. 31:101-115
A study has been made of the restricted plume flow above horizontal, fine mesh screens which intercept a small-scale, turbulent fire plume. Measurements were made of centerline temperatures in both restricted and free plumes, together with screen fri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f95db4dc8903a9d5bb8a12a17a8c406
https://doi.org/10.1016/s0379-7112(97)00068-4
https://doi.org/10.1016/s0379-7112(97)00068-4
Autor:
Gunnar Heskestad
Publikováno v:
Fire Safety Journal. 30:215-227
A dimensionless scaling parameter originally derived by Zukoski from analysis of non-reacting turbulent plumes, Q∗, has been applied extensively and successfully in the literature to correlate heights of turbulent diffusion flames. However, from ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0342c1d86053a29f188a04bff404568a
https://doi.org/10.1016/s0379-7112(97)00035-0
https://doi.org/10.1016/s0379-7112(97)00035-0