Spray Quenching in a Ventilated Duct Fire

[+] Author and Article Information
I. S. Habib

The University of Michigan—Dearborn, Dearborn, Mich. 48128

J. Heat Transfer 102(1), 110-114 (Feb 01, 1980) (5 pages) doi:10.1115/1.3244220 History: Online October 20, 2009


Analysis of the interaction between cold liquid sprays, a flowing hot gas, and an ignited duct wall is presented. This situation simulates what could be the result of a fire spread in an underground ventilated wood lined corridor or a coal mine entry. Spread of an ignition front is defined as the rate of propagation of a specific ignition temperature along the solid wall. Radial wall conduction, heat and mass transfer associated with the liquid sprays, convection at the wall, and surface, luminous, and nonluminous radiative interchange are accounted for. The zone method of solution is chosen as it can accommodate real gas effects in the analysis, and the adaptability of this approach to include luminous flames proved to be successful. Wall friction is included through the use of a friction coefficient. The results presented show in the direction of flow the variation in the temperature of the duct, the gas, and the liquid droplets. Also presented is the quenching distance along the duct at which wall ignition ceases as a function of spray distribution, air flow rate, and other pertinent parameters. The results give qualitative and quantitative assessment of the parameters which control a fire spread identified by the model presented.

Copyright © 1980 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In