Abstract
We studied experimentally the influence of the degree of water emulsification ofM-40 mazut heated to the water boiling point on the self-ignition time with its pulsed high-pressure injection into heated air. It is shown that water addition does not change the chemistry of the reaction and heating the water-fuel emulsion leads to the disappearance of differences in the ignition character of the emulsion and the moisture-free fuel. It is confirmed that the features of selfignition are determined mostly by conditions of mixture formation. Indirect evidence is obtained that the dynamic tensile strength of the fluid strongly influences the primary dispersion of the jet during its outflow from the sprayer nozzle.
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References
O. N. Lebedev, V. A. Somov, and V. D. Sisin,Water-Fuel Emulsions in Ship Diesel Engines [in Russian], Sudostroenie, Leningrad (1988).
O. A. Gladkov, E. V. Bernshtein, and D. P. Vinogradov, “Character of the effect of water-fuel emulsion on fuel combustion processes in diesels,”Dvigatelestroenie,33, No. 10, 10–12 (1989).
L. V. Tuzov, V. P. Viktorov, Yu. A. Gorbachev, and A. A. Ivanchenko, “Efficiency of main ship engines with a lowered rotation frequency, operating on water-fuel emulsions,”Dvigatelestroenie, No. 11, 41–42 (1989).
A. A. Shkol'nyi and B. N. Semyonov, “Use of water-fuel emulsions in diesels,” in: Abstracts of Papers of the All-Union Scientific Conf. “Topical Problems of Development of Internal-Combustion Engines and Diesel Plants,” Leningrad (1990).
T. A. Gerasimov and Yu. V. Travkin, “Use of water-fuel emulsions for decreasing the toxicity of diesel plants,”Izv. Vuzov, Lesn. Zh., No. 2, 62–67 (1992).
R. V. Malov and V. V. Pekshev, “Emulsification of fuel and ecological characteristics of a diesel,”Avtomob. Prom., No. 8, 15–18 (1992).
O. N. Lebedev and V. N. Marchenko, “Study of evaporation and combustion of emulsified motor fuel drops,”Dvigatelestroenie, No. 11, 26–27 (1979).
Yu. I. Vorzhev, “Use of water-fuel emulsions in ship diesels,”Dvigatelestroenie,35, No. 12, 30–33 (1986).
V. G. Egorov, V. V. Zagorovskii, and V. D. Sisin, “On peculiarities of combustion of water-fuel emulsions in marine diesels,” in:Enhancing the Effectiveness of Marine Power Plants [in Russian], Novosib. Inst. Water Transp. Eng., Novosibirsk, 68–73 (1991).
I. N. Petrichenko, “Study of combustion of mazut-water emulsion in a constant volume bomb,”Power Plants and River Vessels, Novosib. Inst. Water Transp. Eng., Novosibirsk, 68–73 (1991).
O. N. Lebedev, “Some peculiarities of combustion of droplets of water-fuel emulsions in diesels,”Fiz. Goreniya Vzryva,14, No. 2, 142–145 (1978).
A. M. Prikhod'ko, “Phenomenology of microexplosion of an emulsified fuel droplet,”Izv. Vuzov, Mashinostroenie, No. 4, 74–76 (1980).
A. Ya. Isakov, “Some characteristics of a microexplosion of water-fuel emulsion drops,”Fiz. Goreniya Vzryva,21, No. 12, 125–126 (1985).
L. V. Sergeev, “Study of operation of diesels on water-fuel emulsions,”Izv. Vuzov, Mashinostroenie, No. 12, 57–61 (1965).
A. A. Buzukov and B. P. Timoshenko, “Auto-ignition and burning of water-oil emulsion with its injection into heated air. II. Ignition lag of diesel fuel Dl,”Fiz. Goreniya Vzryva,30, No. 4, 3–10 (1994).
A. A. Buzukov and B. P. Timoshenko, “Dispersion of a high-pressure water-fuel emulsion jet,”Prikl. Mekh. Tekhn. Fiz.,36, No. 2, 106–111 (1995).
R. V. Malov, “On the mechanism of intradroplet dispersion of emulsions,”Dvigatelestroenie, No. 4, 12–13 (1995).
V. K. Baev, A. N. Bazhaikin, I. V. Boldyrev, et al., “Ignition delay of gasoline with injection into a model diesel combustion chamber,”Fiz. Goreniya Vzryva,17, No. 2, 28–35 (1981).
T. P. Gavrilenko and M. E. Topchiyan, “Study of dynamic tensile strength of a water jet,”Prinkl. Mekh. Tekhn. Fiz.,7, No. 4, 172–174 (1966).
V. E. Vinogradov, G. V. Kuskov, E. N. Sinitsin, “Crush of a gas-saturated water jet,”Teplofiz. Vys. Temp.,32, No. 1, 72–78 (1994).
V. P. Petrov, “Use of water-fuel emulsions in diesels and certain problems of economics,” in:Diesel and Electric Ship Plants [in Russian], Leningr. Korablestroit. Inst., No. 61 (1967), pp. 111–117.
A. A. Buzukov, “Development of a water-fuel emulsion jet in a heated gas medium,”Teplofiz. Aerodin.,2, No. 1 (1995).
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Institute of Theoretical and Applied Mechanics, Novosibirsk 630090. Translated from Fizika Goreniya i Vzryva, Vol. 31, No. 4, pp. 20–25, July–August, 1995.
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Buzukov, A.A., Timoshenko, B.P. Self-ignition and combustion of a water-fuel emulsion during its injection into heated air. II. Ignition delay time of M-40 fuel oil. Combust Explos Shock Waves 31, 419–424 (1995). https://doi.org/10.1007/BF00789360
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DOI: https://doi.org/10.1007/BF00789360