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Showing 1 to 15 of 15 for “"Film Condensation"”.
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Film condensation on the underside of a horizontal surface
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1964.
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Heat transfer during film condensation of a liquid metal vapor
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1964.
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Heat transfer during film condensation of potassium vapor y Detlev Gustav Kroger.
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1967.
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Heat transfer measurements in film condensation of steam on small diameter horizontal tubes
Heat transfer coefficients were measured during film condensation of steam on horizontal tubes of 0.122, 0.182, 0.250, 0.375 inches in diameter. Scale effects were eliminated by repeated cleaning of the tubes. Filmwise, dropwise, mixed, and streaky condensation patterns of steam on the horizontal …
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Scalable Micro/Nanostructured Surfaces for Thin-Film Condensation Heat Transfer Enhancement in Steam Power Plants
… vapor condenses by forming a continuous liquid film with low thermal conductivity (filmwise condensation), hindering heat transfer from the vapor side to the condenser surface. Hydrophobic surfaces achieved by either chemical methods (e.g., coating treatment) or physical methods (e.g. structures …
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FUNDAMENTAL STUDIES ON THE EFFECT OF ELECTRIC FIELD ON INTERFACE INSTABILITY, FILM BOILING, AND FILM CONDENSATION
… OF ELECTRIC FIELD ON INTERFACE INSTABILITY, FILM BOILING, AND FILM CONDENSATION MAJOR PROFESSOR: Dr. A. Esmaeeli This research focuses on investigation of uniform electric field on three inter-related interfacial phenomena including interface under electric field, film boiling under applied …
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Prediction of film condensation and aerosol formation in a gas-vapor mixture flow through a vertical tube
A numerical analysis of laminar film condensation and the prediction of aerosol formation is presented for a gas-vapor mixture undergoing forced flow through a vertical tube. This analysis is useful for estimating the sizes and operating conditions of condensers used for removing vapors from …
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Heat transfer via dropwise condensation on hydrophobic microstructured surfaces
Dropwise condensation has the potential to greatly increase heat transfer rates. Heat transfer coefficients by dropwise condensation and film condensation on microstructured silicon chips were compared. Heat transfer coefficients are found to be seventy percent higher in the hydrophobic, dropwise …
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Efecto de la disipacion viscosa en la condensacion de vapor sobrecalentado
Studies viscous dissipation effects in the condensation heat transfer. Laminar film condensation of a superheated vapour, in the presence of a non-condensable gas, for forced flow over an horizontal, isothermal flat plate ata constant temperature, is analyzed. Condensation of pure vapour is treated …
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Natural and engineered surfaces for enhanced phase change heat transfer
… develop, and demonstrate a novel concepts of condensation heat transfer capable of enhancing performance of state-of-the-art sytems by leveraging thin film condensation and jumping-droplet induced localized hot spot cooling.
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Stability of a condensate film flowing down a vertical plane
… and temperature in a two dimensional condensate film are formulated. The linearized stability problem is derived under the parallel flow assumption. A second—order perturbation solution of the stability problem is presented using the Nusselt solution as base flow. The boundary layer equations of …
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Thermal design of humidification dehumidification systems for affordable and small-scale desalination
… to existing dehumidifiers operating in the film condensation regime was developed to validate the physical models. Overall cost of water production in HDH can be further reduced by treating pressure as a variable parameter. Systems operating under varied pressure consume half the energy as …
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Visualization and measurement of filmwise and dropwise air gap membrane distillation at varied module inclination angle and gap spacer Orientation
… of the module so as to rotate the membrane and condensation plate off the vertical, provides a method to alter the behavior of the film condensation layer and its associated thermal resistance. In this study, we confirm the previous work of Warsinger et al. (2014) through the added enhancement …
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Design and performance characterization of high power density air-cooled compact condenser heat exchangers
… air flow in circular microchannels and two-phase condensation flow of refrigerant in rectangular minichannels to achieve high heat transfer performance in a compact design. These advancements are enabled by recent developments in micro-electric discharge machining to produce very high surface area …