Search for dissertations about: "how work hydropower"
Showing result 1 - 5 of 18 swedish dissertations containing the words how work hydropower.
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1. Tribology of self-lubricating polymer composites for hydropower applications
Abstract : The ongoing global climate crisis and its impacts calls for urgent actions, such as significant reduction of CO2 emissions by introducing more renewable energy. This has led to a rapid integration of variable power sources, such as wind and solar power, into the electricity systems. READ MORE
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2. Lubrication of sliding bearings for hydropower applications
Abstract : The term "sliding bearing" refers to types of bearing where two conformal surfaces (usually the stationary bearing and a moving shaft) slide relative to one another with load distributed directly across the interface. A suitable lubricant may be employed to reduce the friction between these two surfaces. READ MORE
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3. Rotor dynamical modelling and analysis of hydropower units
Abstract : In almost all production of electricity the rotating machines serves as an important part of the energy transformation system. In hydropower units, a hydraulic turbine connected to a generator converts the potential energy stored in the water reservoir into electrical energy in the generator. READ MORE
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4. Contributions to the electromechanics of unbalanced magnetic pull in a synchronous hydropower generator
Abstract : Misalignment between the rotor geometrical axis and the geometrical stator axis in a hydropower generator is usually present at standstill and when the machine is under operation. Now, rotor-stator eccentricity in a rotating electrical machine is a harbinger to abnormal operating conditions of the machine. READ MORE
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5. Rock mass behavior under hydropower embankment dams with focus on fracture erosion and rock mass stability
Abstract : In Sweden there are about 190 large hydropower dams of varying age. According to the definition by the International Commission of Large Dams (ICOLD), if the height of the dam exceeds 15 m it is referred as large. Majority of these dams are of embankment type. READ MORE