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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"Vertical tube"”.
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Post critical heat transfer to flowing liquid in a vertical tube.
Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Thesis. 1974. Sc.D.
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Thermal non-equilibrium in dispersed flow film boiling in a vertical tube.
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1967.
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Post critical heat flux heat transfer to water in a vertical tube.
Thesis. 1977. M.S.--Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
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Heat transfer and pressure drop for evaporation of water in a vertical tube
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1953.
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Post critical heat flux heat transfer in a vertical tube including spacer grid effects
Thesis. 1978. M.S.--Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
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Prediction of film condensation and aerosol formation in a gas-vapor mixture flow through a vertical tube
… 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 gas-vapor mixtures. The ability to predict the possibility of aerosol formation without expensive experimental …
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Heat transfer in upward flowing two-phase gas-liquid mixtures. An experimental study of heat transfer in two-phase gas-liquid mixtures flowing upwards in a vertical tube with liquid phase being driven by a pump or air injection.
… gas-liquid mixture was investigated in a perspex tube of identical dimensions to the heat exchanger tube.
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Adiabatic Air-Water Two Phase Flow Experimental Facilities Design, Construction and Operation
… of air-water two-phase flows in a vertical tube (poly-dispersed) and also annulus (mono-dispersed) have been subjected to be studied in detail. The hydrodynamics modeling and simulations need a detailed comparison and verification with experimental results. Obviously, a …
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Performance evaluation of a mechanical vapour compression desalination system
… vapor compression (MVC) desalination system with vertical tube evaporators. To evaluate the performance of the existing setup, four operating variables were considered, which include the top brine temperature (TBT), brine recirculation rate, compressor speed and brine concentration. The setup …
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Oil Retention and Pressure Drop in Horizontal and Vertical Suction Lines with R410A / POE ISO 32
… drop and mass of oil retained in horizontal and vertical suction lines. The bulk vapor velocity and overall void fraction are determined from direct mass and temperature measurements. The oil retention, pressure drop, and flow regimes near the minimum ASHRAE recommended mass flux condition are …
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A study of interfacial waves and heat transfer for turbulent condensation in vertical tubes
… for the downward flow of steam condensing in a vertical tube. The mass velocity of the steam was such that the flow occurred in the annular-mist regime. The interfacial wave velocities, frequencies, and amplitudes were experimentally determined using needle contact probes. From these data on …
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Effect of longitudinal micro fin tube enhancement in evaporation of R410A
… for smooth and coaxial micro-finned aluminum tubes with an internal diameter of 6.3 mm. The study used R410A at a saturation temperature of 10 °C running at mass fluxes from 100 to 250 kg/m2-s, heat fluxes from 4 to 14 kW/m2, and qualities from 0.1 to 0.8. The testing facility had a 15 cm long …
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MEAN TURBULENCE STRUCTURE IN STRONGLY HEATED AIR FLOWS.
… and wall parameters for air flowing in a smooth, vertical tube at low entry Reynolds numbers are presented for heating with constant wall heat flux along the heated length. Two entry Reynolds numbers of approximately 6000 and 4000 were employed with three heating rates, q('+) = q('w'')/ (Gc(,p,i) …
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The dissolution of lime in iron silicate melts.
… an inert atmosphere of argon at 1300°C in a vertical tube furnace. A small cylindrical pellet of lime was preheated to the melt temperature before being immersed in the melt contained in an iron crucible. After a preselected period, ranging from 10 seconds to 9 minutes, the pellet and …
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Characterisation and simulation of bidirectional multiphase flow in tubes
… annular flow with a falling liquid film inside a vertical tube with internal diameter of 0.054 m, height of 10.5m length, and length of 40m horizontal section, was researched experimentally. Despite the significance of this problem, there is lack of reports in the literature of a generally …
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Numerical Investigations of the Fluid Flow and Heat Transfer and Construction of Control System for the Canadian Supercritical Water-Cooled Reactor Power Plant
… heat transfer of the supercritical water in the vertical tube and the rod bundle is numerically investigated to evaluate whether the existing turbulent models could successfully caption the wall temperature variations at supercritical conditions by comparing the numerical results with the …
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Investigation of oil retention and pressure drop in suction lines using R134a with AB ISO 32
… pressure drop were evaluated in horizontal and vertical suction lines with an internal diameter of 10.2 mm and length approximately 2 m. The system operating conditions were kept fixed at a saturation temperature of 13˚C and a superheat of 15˚C. The mass flux was varied from 30 kg/m2-s – 140 …
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Oxidation kinetics of molten copper sulphide
… with Ar-02 gas mixtures in the hotzone of a vertical tube furnace. During the oxidation reaction, gravimetric measurements of the copper sulphide baths were also conducted to further support the results of the gas analysis measurements. A series of laboratory tests, involving reaction gas …
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The Removal of Pharmaceuticals from Wastewater by Wet-Air Oxidation
<p>The ubiquitous occurrence of pharmaceuticals and personal care products (PPCPs) in aquatic environments has raised concerns about potential adverse effects on aquatic ecology and human health. Certain pharmaceuticals have recently become a major focus of research to better understand the routes …
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Flash gas bypass - a way to improve distribution of adiabatic two-phase refrigerant flow in headers of microchannel evaporators
… to study vapor-liquid refrigerant separation in vertical impact T-junctions using R134a and R410A as working fluids. Inlet flow rate and quality are varied in the range of 10 - 35 g/s and 10 - 25% with an intention for application in A/C systems with cooling capacities about 1.5 to 6 kW. Flow …
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