Global ETD Search
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 518 for “"pressure drop"”.
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Pressure drop in headers of microchannel heat exchangers
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01
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Pressure drop and loading velocities in packed towers
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1939.
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Pressure drop with surface boiling in small-diameter tubes
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1964.
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Hydraulic gradient and pressure drop on a perforated plate
Thesis (M.S.) Massachusetts Institute of Technology. Dept. of Chemical Engineering, 1951.
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Positive pressure drop-on-demand printhead for Three-Dimensional Printing
In drop-on-demand printing, wetting out of the binder fluid onto the orifice face typically has been prevented by some combination of the following: coatings on the orifice face, high surface energy fluids, and negative pressure. This non-wetting approach is not practical for low surface energy …
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Flow and pressure drop on the shellside of cylindrical heat exchangers
This work presents pressure distributions and fluid flow patterns on the shellside of a cylindrical shell-and-tube heat exchanger. The apparatus used was constructed from glass enabling direct observation of the flow using a dye release technique and had ten traversable pressure instrumented tubes …
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Flow, Heat Transfer, and Pressure Drop Interactions in Louvered-Fin Arrays
… the flow and its influence on heat transfer and pressure drop behavior for both louvered and convex-louvered fins. Specifically, this research explores the end effects of heat exchanger walls; the effect of vortex shedding on heat transfer and pressure drop; and the effect of using convex louvers …
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A leak detecting technique utilizing an abrupt and large pressure drop
… that would be forced outward by the rapid pressure drop formed in proximity to the leak. In order to determine the characteristic behavior of the system, several simulations, with a circular hole as the leak, were ran that showed that the significant pressure gradient existed only within …
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Investigation and characterization of pressure drop in evenly spaced twisted tapes
… transfer and CHF, but also introduce a smaller pressure drop than a full-length twisted tape insert. This thesis project investigated the effects of short-length twisted tape inserts on the pressure drop in round tubes. The objectives of the project were two-fold. The first objective was to …
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A CFD analysis of the pressure drop through misaligned Stirling engine regenerators
… the effect of wire mesh misalignment on the pressure drop for ow through a regenerator. A friction factor correlation equation was developed and it was found that a perfectly aligned regenerator could result in a 38% to 45% decrease in pressure losses. The model was also used to determine the …
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Pressure drop and phase fraction in oil-water-air vertical pipe flow
Thesis. 1976. M.S.--Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
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An assessment of two-phase pressure drop correlations for steam-water systems.
Thesis (Nav. Arch.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering; and, (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1975.
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Pressure drop in fully developed, turbulent, liquid-vapor duct flows at zero gravity
Reliable prediction methods for the frictional pressure drop in liquid-vapor flows at zero gravity are essential to the design of two-phase thermal control and fluid transfer systems aboard spacecrafts. The present investigation is concerned with the prediction of the frictional pressure drop in …
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The influence of gravity on pressure drop and heat transfer in flow boiling
… has been fabricated in which heat transfer, pressure drop, and vapor volume fraction in flow boiling of R11 can be studied in vertical upflow, vertical downflow, and horizontal flow configurations.
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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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Low flow pressure drop flow rate instabilities in a compressible air-water system
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1979.
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An investigation of pressure drop in a two-phase two-component flow in bends
Thesis (B.S.) Massachusetts Institute of Technology. Dept. of Mechanical Engineering, 1957.
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An Experimental Study on the Impact of Pressure Drop in the Ranque-Hilsch Vortex Tube
… is (at least partially) dependent on the pressure ratio between the inlet and the cold outlet.
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Effect of inclination on pressure drop and flow regimes in large flattened-tube steam condensers
… experimental study of the inclination effect on pressure drop and flow regime during condensation of steam in a large flattened tube used in air-cooled condensers (ACC) for power plants. Steam with mass flux of about 7 kg m-2 s-1 was condensed inside a 10.7 m long, flattened test tube with …
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