Conclusions
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1.
Measurement of the average temperature of combustion products by photorecording of the propagation of spherical flames in rubber membranes shows that the combustion of carbon-containing mixtures may be accompanied by losses by radiation of up to half the entire heat of the reaction. For these mixtures the losses decrease with increasing thermodynamic temperature of combustion (Tb). These losses do not depend on the initial size of the membrane.
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2.
For mixtures of H2+O2+Ar, heat losses are negligible; at Tb ~2100° they reach a maximum, which is 2–2.5 times lower than for carbon-containing systems.
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3.
Calculation of the intensity of the thermal radiation of the flame gives a value 10 times lower than the experimental value. The observable losses are explained by the influence of chemiluminescence.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1011–1017, May, 1972.
The chromatographic determination of the composition of the fuel was performed by V. V. Pomazanov, to whom the authors would like to express their gratitude.
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Rozlovskii, A.I., Khasanov, V.G. & Gimatdinov, R.K. The thermal system of a spherical flame. Russ Chem Bull 21, 968–973 (1972). https://doi.org/10.1007/BF00853749
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DOI: https://doi.org/10.1007/BF00853749