Abstract
This paper examines coupled heat and mass transfer in porous media where natural convection is caused by temperature and concentration differences. Two alternative non-dimensional models are developed and used to correlate the experimentally measured heat transfer across a porous medium. It is shown that a parametric model correlates the data well with a general form. Nu∝(Ra Da N)0.295 Ja-0.45. The other model, based on the analogy between heat and mass transfer, is less accurate in predicting heat transfer but the results are good enough to suggest that such analogy models could be used in a wide range of heat and mass transfer processes. The effect of bed geometry on the two models is also discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 2131-2143 |
| Number of pages | 13 |
| Journal | International Journal of Heat and Mass Transfer |
| Volume | 35 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 1 Jan 1992 |
Cite this
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An experimental study of natural convection with coupled heat and mass transfer in porous media. / Sheridan, J.; Williams, A.; Close, D. J.
In: International Journal of Heat and Mass Transfer, Vol. 35, No. 9, 01.01.1992, p. 2131-2143.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - An experimental study of natural convection with coupled heat and mass transfer in porous media
AU - Sheridan, J.
AU - Williams, A.
AU - Close, D. J.
PY - 1992/1/1
Y1 - 1992/1/1
N2 - This paper examines coupled heat and mass transfer in porous media where natural convection is caused by temperature and concentration differences. Two alternative non-dimensional models are developed and used to correlate the experimentally measured heat transfer across a porous medium. It is shown that a parametric model correlates the data well with a general form. Nu∝(Ra Da N)0.295 Ja-0.45. The other model, based on the analogy between heat and mass transfer, is less accurate in predicting heat transfer but the results are good enough to suggest that such analogy models could be used in a wide range of heat and mass transfer processes. The effect of bed geometry on the two models is also discussed.
AB - This paper examines coupled heat and mass transfer in porous media where natural convection is caused by temperature and concentration differences. Two alternative non-dimensional models are developed and used to correlate the experimentally measured heat transfer across a porous medium. It is shown that a parametric model correlates the data well with a general form. Nu∝(Ra Da N)0.295 Ja-0.45. The other model, based on the analogy between heat and mass transfer, is less accurate in predicting heat transfer but the results are good enough to suggest that such analogy models could be used in a wide range of heat and mass transfer processes. The effect of bed geometry on the two models is also discussed.
UR - http://www.scopus.com/inward/record.url?scp=0026912349&partnerID=8YFLogxK
U2 - 10.1016/0017-9310(92)90058-Z
DO - 10.1016/0017-9310(92)90058-Z
M3 - Article
AN - SCOPUS:0026912349
VL - 35
SP - 2131
EP - 2143
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
SN - 0017-9310
IS - 9
ER -