Abstract
Experimental results on heat transfer during film condensation of stationary pure vapor refrigerants R-11 and R-12 on a smooth tube and on four tubes with transverse ribs of constant curvature are reported. The tubes were manufactured in such a way that the fins and valleys had circumferences of the same radius. All tubes were made of brass. The effect of surface curvature on heat transfer was studied. The heat transfer coefficient on the finned tubes (based upon the smooth tube surface area having the diameter of the fin root) increased in all cases. The maximum enhancement being obtained with the tube having the smallest fin radius. Experimental data have been compared with the theoretical models of condensation on the curvilinear surfaces They have also been processed in dimensionless form.
| Original language | English |
|---|---|
| Pages (from-to) | 43-53 |
| Number of pages | 11 |
| Journal | Journal of Enhanced Heat Transfer |
| Volume | 3 |
| Issue number | 1 |
| Publication status | Published - 1996 |
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Keywords
- Condensation
- Enhanced heat transfer
- Finned surfaces
- Refrigerants
- Surface tension effect
ASJC Scopus subject areas
- Fluid Flow and Transfer Processes
- Physical and Theoretical Chemistry
- Mechanical Engineering
Cite this
An experimental study of R-11 and R-12 film condensation on horizontal integral-fin tubes. / Gogonin, I. I.; Kabov, O. A.
In: Journal of Enhanced Heat Transfer, Vol. 3, No. 1, 1996, p. 43-53.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - An experimental study of R-11 and R-12 film condensation on horizontal integral-fin tubes
AU - Gogonin, I. I.
AU - Kabov, O. A.
PY - 1996
Y1 - 1996
N2 - Experimental results on heat transfer during film condensation of stationary pure vapor refrigerants R-11 and R-12 on a smooth tube and on four tubes with transverse ribs of constant curvature are reported. The tubes were manufactured in such a way that the fins and valleys had circumferences of the same radius. All tubes were made of brass. The effect of surface curvature on heat transfer was studied. The heat transfer coefficient on the finned tubes (based upon the smooth tube surface area having the diameter of the fin root) increased in all cases. The maximum enhancement being obtained with the tube having the smallest fin radius. Experimental data have been compared with the theoretical models of condensation on the curvilinear surfaces They have also been processed in dimensionless form.
AB - Experimental results on heat transfer during film condensation of stationary pure vapor refrigerants R-11 and R-12 on a smooth tube and on four tubes with transverse ribs of constant curvature are reported. The tubes were manufactured in such a way that the fins and valleys had circumferences of the same radius. All tubes were made of brass. The effect of surface curvature on heat transfer was studied. The heat transfer coefficient on the finned tubes (based upon the smooth tube surface area having the diameter of the fin root) increased in all cases. The maximum enhancement being obtained with the tube having the smallest fin radius. Experimental data have been compared with the theoretical models of condensation on the curvilinear surfaces They have also been processed in dimensionless form.
KW - Condensation
KW - Enhanced heat transfer
KW - Finned surfaces
KW - Refrigerants
KW - Surface tension effect
UR - http://www.scopus.com/inward/record.url?scp=0029736080&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029736080&partnerID=8YFLogxK
M3 - Article
VL - 3
SP - 43
EP - 53
JO - Journal of Enhanced Heat Transfer
JF - Journal of Enhanced Heat Transfer
SN - 1065-5131
IS - 1
ER -