NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 30 of 6351
Premixed flame propagation in combustible particle cloud mixtures
Author and Affiliation:
Seshadri, K.(NASA Lewis Research Center, Cleveland, OH, United States)
Yang, B.(California Univ., La Jolla, United States)
Abstract: The structures of premixed flames propagating in combustible systems, containing uniformly distributed volatile fuel particles, in an oxidizing gas mixtures is analyzed. The experimental results show that steady flame propagation occurs even if the initial equivalence ratio of the combustible mixture based on the gaseous fuel available in the particles, phi(u) is substantially larger than unity. A model is developed to explain these experimental observations. In the model it is presumed that the fuel particles vaporize first to yield a gaseous fuel of known chemical composition which then reacts with oxygen in a one-step overall process. It is shown that the interplay of vaporization kinetics and oxidation process, can result in steady flame propagation in combustible mixtures where the value of phi(u) is substantially larger than unity. This prediction is in agreement with experimental observations.
Publication Date: Jan 01, 1993
Document ID:
19930040811
(Acquired Dec 28, 1995)
Accession Number: 93A24808
Subject Category: INORGANIC AND PHYSICAL CHEMISTRY
Report/Patent Number: AIAA PAPER 93-0713
Document Type: Preprint
Publication Information: 8 p.
Publisher Information: United States
Meeting Information: AIAA, Aerospace Sciences Meeting and Exhibit; 31st; Jan. 11-14, 1993; Reno, NV; United States
Meeting Sponsor: AIAA
Contract/Grant/Task Num: NAG3-1297
Financial Sponsor: NASA; United States
Organization Source: NASA Lewis Research Center; Cleveland, OH, United States
Description: 8p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: COMBUSTION CHEMISTRY; FLAME PROPAGATION; FUEL COMBUSTION; GAS MIXTURES; GASEOUS FUELS; PREMIXED FLAMES; FLAMES; LAMINAR FLOW; MATHEMATICAL MODELS; REACTION KINETICS
Imprint And Other Notes: AIAA, Aerospace Sciences Meeting and Exhibit, 31st, Reno, NV, Jan. 11-14, 1993
Availability Source: Other Sources
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: August 19, 2011
Contact Us