Fuel-lean flammability limits and burning velocities in a closed vessel were measured for methane-air mixtures burning at earth gravity (one-g) and zero-gravity (zero-g) at initial pressures of 50-1500 Tore The zero-g flammability limit was found to be between the one-g upward and one-g downward fla
Prediction of flammability limit of an unconfined premixed gas in the absence of gravity
โ Scribed by Merwin Sibulkin; Abdelkader Frendi
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 756 KB
- Volume
- 82
- Category
- Article
- ISSN
- 0010-2180
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โฆ Synopsis
rad radiation ~b varied as r n where r is the nondimensional c~ ambient value temperature and that the nondimensional heat loss rate varied as r m downstream of the flame. After "Superscripts making additional mathematical approximations, Spalding concluded that for n > m there were two possible steady burning velocities for values of a per unit time nondimensional heat loss parameter K less than a "' per unit volume critical value Kc, but no possible burning velocity for K > Kc. He concluded that Kc was a flamma-
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The performance of a variety of procedures in calculating gas-phase proton affinities has been assessed. Methods examined include density functional theory with the B-LYP and Becke3-LYP non-local functionals, second-order (MP2) and fourth-order (MP4) Moller-Plesset and fourth-order Feenberg (F4) the