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 TVT, 2006, Volume 44, Issue 2, Pages 268–284 (Mi tvt1315)

Heat and Mass Transfer and Physical Gasdynamics

Results of experimental investigation of heat transfer with emulsions with low-boiling disperse phase

N. V. Bulanova, B. M. Gasanovb, E. A. Turchaninovab

a Urals State University of Railway Transport, Yekaterinburg
b Institute of Thermal Physics, Ural Branch, Russian Academy of Sciences, Ekaterinburg

Abstract: The results are given of a theoretical investigation of heat transfer from thin wires to emulsions in which the disperse phase is low-boiling compared to the dispersion medium. A special feature of heat transfer to such emulsions is observed in the mode of nucleate boiling, when only the droplets of the disperse phase of emulsion are boiling. The transition from the convective mode of heat transfer to nucleate boiling requires high values of temperature gradient $\Delta T=T_W-T_0$ at which the temperature of the heat-transfer surface $T_W$ is higher than the temperature $T_S$ of saturated vapors of the disperse phase by $100^\circ$C and more. Here, $T_0$ is the temperature of the heat-transfer agent away from the heat-transfer surface. Note that, for pure liquids and solutions, the value of delay of the beginning of boiling $\Delta T_i=T_W-T_S$ as a rule does not exceed $1$$5^\circ$C. Another feature of heat transfer to the emulsions being treated is a wide temperature range of the mode of nucleate boiling (over $100^\circ$C); the upper limit of this temperature range is defined by the temperature of transition to film boiling of the dispersion medium of the emulsion being investigated that has already boiled by this instant of time. The value of delay of the beginning of boiling is affected significantly by additions of surfactants and adsorbents.

Full text: PDF file (2584 kB)

English version:
High Temperature, 2006, 44:2, 267–282

UDC: 536.24/423
PACS: 44.35+c,47.55.dp

Citation: N. V. Bulanov, B. M. Gasanov, E. A. Turchaninova, “Results of experimental investigation of heat transfer with emulsions with low-boiling disperse phase”, TVT, 44:2 (2006), 268–284; High Temperature, 44:2 (2006), 267–282

Citation in format AMSBIB
\Bibitem{BulGasTur06} \by N.~V.~Bulanov, B.~M.~Gasanov, E.~A.~Turchaninova \paper Results of experimental investigation of heat transfer with emulsions with low-boiling disperse phase \jour TVT \yr 2006 \vol 44 \issue 2 \pages 268--284 \mathnet{http://mi.mathnet.ru/tvt1315} \elib{http://elibrary.ru/item.asp?id=9187081} \transl \jour High Temperature \yr 2006 \vol 44 \issue 2 \pages 267--282 \crossref{https://doi.org/10.1007/s10740-006-0033-z} \elib{http://elibrary.ru/item.asp?id=13513364} \scopus{http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-33646741208} 

• http://mi.mathnet.ru/eng/tvt1315
• http://mi.mathnet.ru/eng/tvt/v44/i2/p268

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Citing articles on Google Scholar: Russian citations, English citations
Related articles on Google Scholar: Russian articles, English articles

This publication is cited in the following articles:
1. A. K. Rozentsvaig, Ch. S. Strashinskiy, “Hydrodynamic Aspects of Boiling Up of a Disperse Phase in a Homogeneous Turbulent Flow of an Emulsion”, High Temperature, 49:1 (2011), 143–146
2. N. V. Bulanov, B. M. Gasanov, “Dependence of the Beginning of Chain Activation of Boiling Sites on Superheating of Droplets in the Dispersed Phase of the Emulsion”, High Temperature, 49:2 (2011), 213–216
3. B. M. Gasanov, N. V. Bulanov, “Effect of the concentration and size of droplets of the dispersed phase of an emulsion on the character of heat exchange in a boiling emulsion”, High Temperature, 52:1 (2014), 86–92
4. Roesle M.L. Lunde D.L. Kulacki F.A., “Boiling of Dilute Emulsions on a Heated Strip”, Proceedings of the Asme Summer Heat Transfer Conference - 2013, Vol 2, Amer Soc Mechanical Engineers, 2014, V002T07A043
5. Gasanov B.M., Bulanov N.V., “Effect of the Droplet Size of An Emulsion Dispersion Phase in Nucleate Boiling and Emulsion Boiling Crisis”, Int. J. Heat Mass Transf., 88 (2015), 256–260
6. Roesle M.L. Lunde D.L. Kulacki F.A., “Boiling Heat Transfer To Dilute Emulsions From a Vertical Heated Strip”, J. Heat Transf.-Trans. ASME, 137:4 (2015), 041503
7. Gasanov B.M., “Boiling of Emulsions With a Low-Boiling Disperse Phase. High-Speed Filming”, Int. J. Heat Mass Transf., 94 (2016), 66–74
8. Janssen D., Kulacki F.A., “Flow Boiling of Dilute Emulsions”, Int. J. Heat Mass Transf., 115:A (2017), 1000–1007
9. Trinh Vu, Tran T.N., Xu J., “Single-Phase Flow and Heat Transfer Characteristics of Ethanol/Polyalphaolefin Nanoemulsion Fluids in Circular Minichannels”, Int. J. Heat Mass Transf., 113 (2017), 324–331
10. Vu Trinh, Xu J., “An Experimental Study on Flow and Heat Transfer Characteristics of Ethanol/Polyalphaolefin Nanoemulsion Flowing Through Circular Minichannels”, Nanoscale Res. Lett., 12 (2017), 216
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14. Rozentsvaig A., Strashinskii Ch., “Boiling in Volume of Low Temperature Droplets of Dispersed Phase of Liquid Emulsions”, Therm. Sci., 21:6, B (2017), 2981–2992
15. Galiakbarov R.T. Rozentsvaig A.K. Strashinskii Ch.S., “Effect of Phase Changes on the Effectiveness of Cooling By Emulsions”, AMAZON. INVESTIG., 7:17 (2018), 378–386
16. Gasanov B.M., “Flow Boiling of Water and Emulsions With a Low-Boiling Disperse Phase in Minichannels”, Int. J. Heat Mass Transf., 126:B (2018), 9–14
17. Rozentsvaig A.K., Strashinskii Ch.S., “Droplets Behavior of Subcooled Dispersed Phase Under Nucleate Boiling of Continuous Phase of Liquid Emulsion”, Int. J. Heat Mass Transf., 125 (2018), 1274–1283