Refrigerant forced-convection condensation inside horizontal tubes
Name
HTL_TR_1968_059.pdf
Size
4.06 MB
Format
Adobe PDF
Checksum (MD5)
4e2cd19aa6e477bfa2f7c476779b29ea
Author(s)
Bae, Soonhoon
Maulbetsch, John S.
Rohsenow, Warren M.
Date Issued
1968
Publisher
Cambridge, Mass. : M.I.T. Heat Transfer Laboratory, [1968]
Series/Report no.
Technical report (Massachusetts Institute of Technology, Heat Transfer Laboratory) ; no. 59.
Abstract
Condensing heat transfer rates inside a horizontal tube were investigated -for large quality changes across the tube. The proposed correlation is a modification of the work of Rohsenow, Webber and Ling [29]. The result of the investigation is modified through new variables which include the effect of the true axial pressure gradient in a tube. Experimental data are presented for a range of flow conditions. A 0.493 in. ID, 19.75 ft. long nickel tube was used for condensing Refrigerant-12. The saturation temperature was varied from 84.6*F to 118*F and flow rates of vapor-liquid mixture ranged from 151,000 lbm/ft 2hr to 555,000 lbm/ft 2hr. The inlet quality was essentially 100% at saturation and exit qualities ranged from 50% to zero and subcooled liquid. The test results for average heat transfer coefficient ware correlated by the analysis within 15%.
Subjects
Tubes -- Fluid dynamics.
Heat -- Transmission.
Refrigerants.
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