Publicou 4 edições por ano
ISSN Imprimir: 1065-3090
ISSN On-line: 1940-4336
Indexed in
ANALYSIS OF LIQUID-VAPOR INTERFACE DURING FILM CONDENSATION ON A HORIZONTAL TUBE WITH LOW RADIAL FINS
RESUMO
An optical method based on laser-induced fluorescence has been used for the measurement of liquid film geometric configuration during film condensation on a horizontal tube with low radial fins. Sodium fluorescein was used as a dye tracer in the condensate film. A test tube was fitted with thermocouples for the heat-transfer coefficient estimation. Condensate flow rate was evaluated using an analytical model. Tests were performed with quiescent steam vapor at atomospheric pressure. Digital image processing was performed for defining the meniscus shape of the condensate film flowing between the fins. Experimental results are compared with analytical profiles. The prospect of this method is also discussed.
-
Desevaux P, Homescu D, Panday P.K, Prenel J.P, Interface measurement technique for liquid film flowing inside small grooves by laser induced fluorescence, Applied Thermal Engineering, 22, 5, 2002. Crossref
-
Homescu D., Desevaux P., Laser photochromic dye activation technique for the measurement of liquid free surface velocity on curved surfaces, Optics and Lasers in Engineering, 41, 6, 2004. Crossref
-
Speck Ph., Gbamele Y. M., Desevaux Ph., Panday P. K., Prenel J. P., Visualization of air flow separation past dry and wet tubes, The European Physical Journal Applied Physics, 18, 1, 2002. Crossref