- Additional Authors
- Description
- i, 99 p. : ill.
- Summary
- "The influence of pressure on the autoignition characteristics of homogeneous mixtures of hydrocarbon fuels in air is examined. Autoignition delay times are measured for propane, ethylene, methane, and acetylene in a continuous flow apparatus featuring a multi-point fuel injector. Results are presented for mixture temperatures from 670K to 1020K, pressures from 1 to 10 atmospheres, equivalence ratios from 0.2 to 0.7, and velocities from 5 to 30 m/s. Delay time is related to pressure, temperature, and fuel concentration by global reaction theory. The results show variations in global activation energy from 25 to 38 kcal/kg-mol, pressure exponents from 0.66 to 1.21, and fuel concentration exponents from 0.19 to 0.75 for the fuels studied. These results are generally in good agreement with previous studies carried out under similar conditions.--NTIS abstract.
- Series Statement
- NASA contractor report ; 175064
- Uniform Title
- NASA contractor report ; NASA CR-175064.
- Subject
- Note
- Bibliography (note)
- Includes bibliographical references (p. 96-99).
- Type of Report (note)
- Additional Formats (note)
- Distributed to depository libraries in microfiche; also available via the Internet.
- Reproduction (note)
- Funding (note)
- Prepared for Lewis Research Center under grant
- Call Number
- GPO Microfiche NAS 1.26:175064
- OCLC
- marcive237004696
- Author
Lefebvre, Arthur H. (Arthur Henry), 1923-2003.
- Title
Spontaneous ignition delay characteristics of hydrocarbon fuel-air mixtures [microform] / Arthur Lefebvre, W. Freeman, and L. Cowell ; [performing organization: Purdue University, School of Mechanical Engineering ; sponsoring agency: National Aeronautics and Space Administration].
- Imprint
West Lafayette, Ind. : Purdue University, School of Mechanical Engineering ; [Cleveland, Ohio] : National Aeronautics and Space Administration, Lewis Research Center, [1986]
- Series
NASA contractor report ; 175064
NASA contractor report ; NASA CR-175064.
- Additional Formats
Distributed to depository libraries in microfiche; also available via the Internet.
- Bibliography
Includes bibliographical references (p. 96-99).
- Type Of Report
Final report.
- Funding
Prepared for Lewis Research Center under grant NAG 3-226 505-31-42
- Reproduction
Microfiche. [Washington, D.C. : National Aeronautics and Space Administration], 1986. 2 microfiches : negative.
- Indexed Term
Hydrocarbon fuels - Firing (Igniting) - Ignition - Spontaneous combustion - Pressure dependence - Air - Acetylene - Ethylene - Methane - Propane
- Added Author
Freeman, William G.
Cowell, Luke H.
Purdue University. School of Mechanical Engineering.
Lewis Research Center.
- Other Form:
Print version: Lefebvre, Arthur. Spontaneous ignition delay characteristics of hydrocarbon fuel-air mixtures. (OCoLC)702192957
Online version: Lefebvre, Arthur H. (Arthur Henry), 1923-2003. Spontaneous ignition delay characteristics of hydrocarbon fuel-air mixtures. (OCoLC)795587031
- Gpo Item No.
0830-H-14 (MF)
- Sudoc No.
NAS 1.26:175064