2011 2(7)

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   Short abstract

 

Pages:

215 - 219

Language:

RU

Ref.:

16


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2011_2(7)_39.pdf

 

 

THE EFFECT OF SURFACTANT ON THE WATER DROPS EVAPORATION

Terekhov V.I.1, Shishkin N.E.1, Li K.-.2

1 Institute of Thermophysics SB RAS, Novosibirsk, Russia
2 State Key Laboratory of Multiphase Flow in Power Engineering of Xi'an University, Xian, China


Citation:

Terekhov, V.I., Shishkin, N.E. and Li, K.-., (2011) The effect of surfactant on the water drops evaporation, Modern Science: Researches, Ideas, Results, Technologies, Iss. #2(7), PP. 215 - 219.


Keywords:

heat- and mass-transfer; evaporation; drops; surfactant


Abstracts:

The experimental investigation of the water drops evaporation containing surfactant is carried out. The initialmass contents of the surfactant made ~ 0,15 %. Drops of pure water and with surfactant evaporated in a stream of dry air in a range of temperatures To = ~ (20 ÷ 90)0C and velocities Vo ~ 2 ÷ 5 m/s. Initial diameter of drops was equal do~ 2 mm, thus Reynolds number made Re = 500 ÷ 2000. The experimental research of a flow rate evaporation of a drop and the temperatures of its surface which has been carried out with the help of an infra-red microscope, have shown, that addition of superficially active substance in base the liquid (water) renders essential influence as on character of change of temperature of a surface of evaporating drops on time, and for laws is heat and mass transfer.


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