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 7 of 7 for “"Pump Operation"”.
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Water Hammer: An Analysis of Plumbing Systems, Intrusion, and Pump Operation
… key factor in controlling water hammer. Abnormal pump operation is clearly explained including a description of the four quadrants and eight zones of operation as well as the mathematics and a numerical scheme for computation. Low pressures caused by transients can lead to intrusion and …
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Mathematical modelling of the plunger pump operation with numerical methods for simulating the flow across the valve
Plunger pumps are needed for heavy duty sludge pumping at wastewater treatment facilities. America's leading pump manufacturer Wastecorp Inc. brought their plunger pump problem to us in late 2009. It was found that when the ow rate reaches a critical value, the plunger pump starts to generate a …
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A novel framework for acoustic diagnostic of artificial lift system for oil-production
… on many reservoirs requires the use of rod pump systems to pump the fluid to the surface. A longstanding challenging issue in the operation of rod-pump system is the ability to determine the downhole pump conditions based on the knowledge of a finite set of measurables at the top. A novel …
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Enhanced Pump Schedule Optimization For Large Water Distribution Networks To Maximize Environmental And Economic Benefits
… and tools to reduce electricity consumption of pump stations of water distribution systems. Based on this ongoing research trend, about a decade ago, some commercial pump operation optimization software introduced to the market. Using metaheuristic and evolutionary techniques (e.g. Genetic …
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Software for fault detection in HVAC systems in commercial buildings
… rules that adapt to HVAC equipment scale and operation and methods for sorting fault signals according to user-defined interests such as annual cost of energy inefficiencies. These contributions are particularly unique in their treatment of model and the careful consideration of user interests …
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The Hidden Roots of Neoliberal Success in Agrarian Transformation: State Engagement, Farmer Professionalization, and Technological Interdependence in the Senegal River Valley
… the SRV. By imparting practical skills, such as pump operation, contract negotiation, and bookkeeping, state action helped farmers professionalize. A durable effect is a “we’re in this together” state-farmer mentality. When this relationship is tested, well-respected intermediaries, often …
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Lightweight, affordable, low power solar groundwater piston pump for rural remote regions.
Solar photovoltaic powered groundwater pumping systems (SPWPS) are popular way of fetching water from boreholes in semi-arid areas in rural remote regions of most developing countries, where commercial water and electricity supply is out of reach. As the climate changes and the water table drops in …