caa a22 4500 606188886 CHVBK 20210128100847.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s10891-015-1245-z doi (NATIONALLICENCE)springer-10.1007/s10891-015-1245-z Thermal Nature of Concentration Limits of Combustion [Elektronische Daten] [K. Sabdenov, T. Baitasov] An explanation is proposed for the concentration limits of slow combustion of gas mixtures due to the diffusional-thermal instability of a flame and the leading role of the thermal effect of mixture combustion. Basic to this explanation are the following experimental facts obtained for a wide class of mixtures: the concentration limits of slow combustion of a mixture and of its detonation are closely coinciding and depend strongly on the stoichiometric composition of mixture; there is an approximate symmetry relation between the upper and lower combustion limits. It is shown that the flame temperature of gas mixtures depends on their stoichiometric composition and that as their stoichiometric relation deviates from unity, the state of mixture combustion approaches the stability threshold beyond which a stationary flame cannot exist. Springer Science+Business Media New York, 2015 combustion nationallicence flame nationallicence concentration limit nationallicence thermal effect nationallicence stoichiometric relation nationallicence diffusional-thermal instability nationallicence Sabdenov K. L. N. Gumilev Eurasian National University, 5 Munaitpasov Str., 010003, Astana, Republic of Kazakhstan aut Baitasov T. L. N. Gumilev Eurasian National University, 5 Munaitpasov Str., 010003, Astana, Republic of Kazakhstan aut Journal of Engineering Physics and Thermophysics Springer US; http://www.springer-ny.com 88/3(2015-05-01), 743-748 1062-0125 88:3<743 2015 88 10891 https://doi.org/10.1007/s10891-015-1245-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10891-015-1245-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sabdenov K. L. N. Gumilev Eurasian National University, 5 Munaitpasov Str., 010003, Astana, Republic of Kazakhstan aut NATIONALLICENCE 700 1- Baitasov T. L. N. Gumilev Eurasian National University, 5 Munaitpasov Str., 010003, Astana, Republic of Kazakhstan aut NATIONALLICENCE 773 0- Journal of Engineering Physics and Thermophysics Springer US; http://www.springer-ny.com 88/3(2015-05-01), 743-748 1062-0125 88:3<743 2015 88 10891