Effect of fin efficiency on a model for condensation heat transfer on a horizontal, integral-fin tube

Enhanced Condensation Heat Transfer

“…Enhancement ratios found in the literature for different geometries reach up to around 3 for steam and around 9 for low surface tension refrigerants. The Rose approach has been extended by Briggs and Rose (1994) (5) to take account of fin efficiency; this led to closer agreement with data for lower conductivity tubes.…”

“…The solution of Briggs and Rose (1994) (5) was used to anchor the correlation at zero vapour velocity. The resulting agreement with the data used to determine constants in the correlation is illustrated in Fig.…”

Condensation Heat Transfer on Geometrically Enhanced Horizontal Tube: A Review

“…Researchers have successfully identified the optimum geometries, fin shapes, dimensions and materials for integral-fin tubes for a wide range of condensing fluids. A number of theoretical models, for instance Briggs and Rose [1], Ali and Briggs [2], have successfully combined the effect of surface tension and gravity to explain condensation heat transfer on integral-fin and pin-fin tubes. However, relatively fewer investigations have been carried out for condensation on three-dimensionally enhanced tubes.…”

“…Briggs and Rose [1] incorporated 'fin efficiency' effects into the model of Rose [16] in an approximate way. This was done by dividing the tube into flooded and unflooded parts.…”

Analysis of the condensation process and air maldistribution in finned tube and minichannel condensers

“…In general, the estimation of such parameters leads to the use of some empirical correlation. Focusing the attention on the main phenomena occurring during condensation inside a tube, Cavallini and Zecchin (1974) and Briggs and Rose (1994) early identified the heat transfer coefficient (HTC) and the frictional pressure drop (PD), on both the refrigerant and air sides, as the most relevant parameters to be determined experimentally in order to improve the accuracy of the results of simulation software. About the experimental and numerical evaluation of such parameters, many publications, books and manuscripts have been written during last years.…”