Global ETD Search
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Showing 1 to 6 of 6 for “"screw pump"”.
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Albert Baldwin Wood, the Screw Pump, and the Modernization of New Orleans
Albert Baldwin Wood and his screw pumps modernized New Orleans by bringing flood-free streets and cleaner water to the city while providing the potential for growth by pumping swamp lands dry. While Wood was never part of the local Progressive movement, his work with the pumps fit with Progressive …
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Design and Construction of a High Pressure System for Evaluating Multiphase Twin-Screw Pumps
Twin-screw pumps are currently sold by manufacturers without adequate data predicting the pump behavior when pumping multiphase mixtures. In light of the fact that pump behavior is known to change significantly under these conditions, a new closed-loop test facility has been designed and …
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Parametrization of Triple Screw Pumps for Aerospace Applications
<p>Triple Screw Pumps, a form of positive displacement pump, offer steady, high-pressure flow. In very small launch vehicles or upper stages turbopumps are not practical. This paper examines the performance of triple screw pumps to determine if they may serve as an alternative to turbopumps for use …
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Analysing the performance of the Archimedes screw turbine within tidal range technologies
… Out of the designs examined the Archimedes Screw proved the most promising for further research, due to the reduced cost, simplistic design and environmentally friendly nature. Through the use of computational fluid dynamics (CFD), a variety of screw turbine designs were evaluated, each …
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Harvesting natural algal blooms for concurrent biofuel production and hypoxia mitigation
… plankton net trawling, traveling screen, and screw pump filtration, were compared in terms of energy consumption and harvesting efficiency. Among the various conditions modeled, the most favorable harvesting condition was produced by a 750 kW fishing boat with a plankton trawling net for …
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Estudio técnico-económico de la digestión anaerobia conjunta de la fracción orgánica de los residuos sólidos urbanos y lodos de depuradora para la obtención de biogás
… of 100 liters with a piston flow aided by a screw pump. In all three digesters yield of TS, VTS and COD are obtained ensuring a seamless stabilization of sludge. The biogas productions were major in monoetapa in the digester receiving the highest ratio. With regard to the potential of the …