Sökning: "Small Hydropower"
Visar resultat 1 - 5 av 33 avhandlingar innehållade orden Small Hydropower.
1. Time-accurate Turbulence Modeling of Swirling Flow for Hydropower Application
Sammanfattning : Hydraulic turbomachines have played a prominent role in the procurement of renewableenergy for more than a century. Embedded in the context of general technological progress,their design for efficiency and reliability has reached an outstanding level of quality. LÄS MER
2. Internal Design of a Class of Self-Excited Synchronous Generators
Sammanfattning : INTERNAL DESIGN OF A CLASS OF SELF-EXCITEDABSTRACTWith the increasing trend of distributed generation and the need for alternative and renewable energy sources, self-excited induction and synchronous reluctance generators have attracted more attention for wind, tidal and hydropower applications. This thesis is concerned with the development of a class of self-excited synchronous reluctance generators (SRG). LÄS MER
3. Taming exotic beauties : Swedish hydropower constructions in Tanzania in the era of development assistance, 1960s-1990s
Sammanfattning : This study analyses the history of a large hydroelectric scheme – the Great Ruaha power project in Tanzania. The objective is to establish why and how this specific scheme came about, and as part of this to identify the key actors involved in the decision-making process, including the ideological contexts within which they acted. LÄS MER
4. Environmental-flow assessments for current and future run-off in a large river system regulated for hydropower production
Sammanfattning : In 2019, Sweden implemented legislative changes to renegotiate hydropower permits to both consider environmental rehabilitation and to ensure national supply of hydropower. This means that efforts for environmental rehabilitation of the 2,000 hydropower plants in Sweden need to be considered. LÄS MER
5. Hydropower plants and power systems : Dynamic processes and control for stable and efficient operation
Sammanfattning : As the largest global renewable source, hydropower shoulders a large portion of the regulation duty in many power systems. New challenges are emerging from variable renewable energy (VRE) sources, the increasing scale and complexity of hydropower plants (HPPs) and power grid. LÄS MER