Refrigerant forced-convection condensation inside horizontal tubes
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Other Contributors
Massachusetts Institute of Technology. Division of Sponsored Research.
Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
Massachusetts Institute of Technology. Heat Transfer Laboratory.
Metadata
Show full item recordAbstract
High vapor velocity condensation inside a tube was studied theoretically. The heat transfer coefficients were calculated by the momentum and heat transfer analogy. The Von Karman universal velocity distribution was applied to the condensate flow. Pressure drop was calculated by the Lockhart-Martinelli method and the Zivi void fraction equation. Experimental data was obtained for the mass velocities from 150,000 to 555,000 lbm/ft2 hr for R-12 and R-22 condensing in a 0.493" I.D. 18 ft. long test section. The measured heat transfer coefficients agreed with the prediction within 10% except a few points in the very low quality region.
Date issued
1970Publisher
Cambridge, Mass. : M.I.T. Heat Transfer Laboratory, [1970]
Other identifiers
14083454
Series/Report no.
Technical report (Massachusetts Institute of Technology, Heat Transfer Laboratory) ; no. 71.
Keywords
Tubes -- Fluid dynamics., Heat -- Transmission., Condensation., Refrigerants.