Skip to main content
SpringerLink
Log in

Results of a study concerning the heat and mass transfer when helium is purged of nitrogen impurity by the condensation method

  • Published:
Journal of engineering physics Aims and scope

Abstract

Results are shown of an experimental study concerning the heat and mass transfer inside a vertical tube between the mainstream and the interphase boundary.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Abbreviations

Nu=αd/λ:

Nusselt number for heat

NuD=β cd/Dc :

Nusselt number for diffusion

π g=ΔPV/PM :

effect of density in the transverse current on mass transfer

π ω =gVd/μg:

effect of the transverse current on heat transfer

ε G=PG/PM :

effect of Stefan current on mass transfer

RV/RG :

ratio of vapor gas constant to inert-gas gas constant

CV/C:

ratio of vapor heat capacity to mixture heat capacity

α :

coefficient of heat transfer from the vapor-gas stream to the condensate film

β c :

mass transfer coefficient referred to the concentration gradient

Dc, Dp :

diffusivity referred to concentration and to mixture pressure respectively

ν, μ :

kinematic and dynamic viscosity respectively

ΔPV :

difference between partial pressure of vapor in the mainstream and at the interphase boundary

PG :

partial pressure of the inert component in the mainstream

PM :

mixture pressure

Pcr :

critical pressure of active component

x=ρ v/ρ G :

ratio of active component density to gas density

λ:

thermal conductivity

a :

thermal diffusivity

Literature cited

  1. I. A. Davydov and S. S. Budnevich, Izv. VUZov Energetika, No. 12 (1970).

  2. I. A. Davydov, Trans. Sci. Confer. LTIKhP, in: Reports by the Refrigeration Section and the Heat-and Mass Transfer [in Russian] (1970), pp. 217–226.

  3. L. D. Berman, Teploénergetika, No. 8 (1955).

  4. L. D. Berman and S. N. Fuks, Teploénergetika, No. 8 (1958).

  5. N. B. Vargaftik, Thermophysical Properties of Gases and Liquids (Handbook) [in Russian], Fizmatgiz, Moscow (1963).

    Google Scholar 

  6. V. M. Ramm, Adsorption of Gases [in Russian], Moscow (1966).

Download references

Author information

Authors and Affiliations

  1. Engineering Institute of the Refrigeration Industry, Leningrad

    S. S. Budnevich & I. A. Davydov

Authors
  1. S. S. Budnevich
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. I. A. Davydov
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 22, No. 6, pp. 1006–1011, June, 1972.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Budnevich, S.S., Davydov, I.A. Results of a study concerning the heat and mass transfer when helium is purged of nitrogen impurity by the condensation method. Journal of Engineering Physics 22, 694–698 (1972). https://doi.org/10.1007/BF00822973

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00822973

Keywords

Search

Navigation