Effect of wind on smoldering combustion limits of moist pine needle beds (Record no. 189691)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02404nab a2200205 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s2014 xxu ing |
| 041 ## - IDIOMA | |
| Idioma | Inglés |
| 245 00 - TITULO | |
| Título | Effect of wind on smoldering combustion limits of moist pine needle beds |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Lugar de publicación, distribución, etc. | |
| Nombre de publicador, distribuidor, etc. | |
| Fecha de publicación, distribución, etc. | nov. 2014 |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 06/12/2016 ; 27/07/2016 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 16 p. ; 1589-1605 |
| 520 ## - RESUMEN, ETC | |
| Resumen | Transcripción del resúmen realizada por el autor: We studied moist pine needle beds burning under the effect of wind, in order to determine the upper moisture limit for which there is fire propagation for different wind velocities. For this purpose we built a wind tunnel that allowed us to burn a 600 mm by 150 mm by 40 mm bed under wind velocities between 0.5 m/s and 5.0 m/s and controlled air temperature. Results show an increase in moisture limit from 54% to approximately 140%, for the velocity range indicated. Combustion at limiting conditions proceeds mainly by smoldering with some periods of flaming combustion. It was observed that, for conditions close to extinction, the smoldering front is not quenched at the surface. Additionally, it was also observed that a strong flow of hot gases exit from the fuel bed at the free surface. These two observations lead to the conclusion that the main heat sink is moisture evaporation and that heat losses to the surroundings is reduced by the blowing effect of the hot gases coming off the bed. A dimensional analysis suggests a correlation between moisture limit and wind velocity of the form M = A - B/ vv w 2 , where M is moisture limit for fire propagation, A and B are constants, and vv w is wind speed. Two dimensionless numbers helped to plot the smoldering temperature and fire propagation velocity in a more meaningful way. They are 1=Tsmlcp,g/v2w 1=Tsmlcp,g/Tsmlcp,gvw2vw2 and 2=Mhfg/v2w 2=Mhfg/Mhfgvw2vw2 , where T sml is smoldering temperature, c p,g is the gas specific heat, M is fuel moisture content and h fg is the latent heat of water evaporation. A relatively high moisture limit at 5 m/s wind velocity is possible due to the relatively high air flow into the smoldering front and the efficient heat feedback produced in forward smoldering. |
| 581 ## - ESTADO DE COLECCIÓN | |
| Estado de colección | 6 |
| 773 0# - CORRECCIÓN | |
| Título | Fire Technology |
| Partes relacionadas | 50 |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Artículo de Revista |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Valdivieso, Juan Pablo |
| 9 (RLIN) | 55572 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Dios Rivera, Juan de |
| 9 (RLIN) | 55573 |
| Biblioteca propietaria | Biblioteca actual | Fecha de adquisición | Inventario | Total de préstamos | Inventario | Fecha de carga | Tipo de item KOHA |
|---|---|---|---|---|---|---|---|
| Biblioteca Alejandro Angel Bulgheroni | Biblioteca Alejandro Angel Bulgheroni | 06/03/2026 | 200061931 | 200061931 | 06/03/2026 | Artículo de Revista |
