Full Content is available to subscribers

Subscribe/Learn More  >

Numerical Study of Natural Convective Diffusion of VOCs With Soret and Dufour Effects in Ternary-Component System

[+] Author Affiliations
Baoming Chen, Fang Liu

Shandong Jianzhu University, Jinan, China

Wenguang Geng, Maocheng Tian

Shandong University, Jinan, China

Paper No. IMECE2008-68679, pp. 701-709; 9 pages
  • ASME 2008 International Mechanical Engineering Congress and Exposition
  • Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C
  • Boston, Massachusetts, USA, October 31–November 6, 2008
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4871-5 | eISBN: 978-0-7918-3840-2
  • Copyright © 2008 by ASME


The effect of cross diffusion namely Soret effect and Dufour effect on the convective diffusion of volatile organic compounds (VOCs) indoor environment is investigated in this paper. Based on the principle of thermodynamics of irreversible processes, a mathematical model is developed for the ternary component system (VOCs, dry air and water vapor) with compensating thermal and solute gradients, and this mathematical model is solved numerically by commercial CFD (Fluent) code. Profiles of the dimensionless velocity, temperature and concentration are shown graphically with Soret and Dufour coefficients. Furthermore, the cross diffusion effects on the mass transfer induced by two different solute (VOCs and water vapor) concentration gradients is numerical studied. Finally, numerical values of physical quantities, such as the average Nusselt number and Sherwood number are presented. The numerical results show that the temperature gradient and the water vapor concentration gradient have an effect on the convective diffusion of VOCs indoor environment, and the cross diffusion effects would be taken into consideration for the problem of simultaneous heat and mass transfer especially in the presence of large temperature and concentration gradients.

Copyright © 2008 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In