نتایج جستجو برای: penstock
تعداد نتایج: 110 فیلتر نتایج به سال:
Optimizing the Layout of Run-of-River Powerplants Using Cubic Hermite Splines and Genetic Algorithms
Despite the clear advantages of mini hydropower technology to provide energy access in remote areas developing countries, lack resources and technical training these contexts usually lead suboptimal installations that do not exploit full potential environment. To address this drawback, present work proposes a novel method optimize design mini-hydropower plants with robust efficient formulation....
Abstract The stability of the electricity grid will be disrupted by massive integration new renewable energies. Hydropower plants have a major role to play in this transformation market increasing their operational flexibility and ability provide ancillary services. However, may lead an accelerated degradation mechanical components. By changing turbine operating point far from best efficiency o...
Micro hydropower helps the rural areas to supply power with off grid electrification. This study deals design of micro scheme in Gobecho kebele, Genale Dawa river basin, Ethiopia. The site for construction diversion weir is located upstream Ganga kebele. were implemented based on available hydrological data collected from 1991 2020 discharge at different stations by selecting one, which near ca...
The design flow rate, the dimensions of transmission structure and penstock size have a large impact on cost run-of-river type hydroelectric power plants. Equipment costs constitute part total budget plant. Optimum sizing, which maximizes use hydraulic potential, does not fit together with optimum is necessary to obtain economic benefit from its investment. main parameters can be selected help ...
Climate warming can alter the thermal conditions of reservoirs. However, some hydraulic interventions be explored to mitigate this impact. This study investigates long-term effects climate on temperature and structure a monomictic reservoir that has had varying operations from 1959 2016. Reservoir progressively operated through three distinct periods, namely, (A) deep penstock withdrawal (DPW; ...
This paper investigates governor design by reduced-order sliding mode for a hydropower plant with an upstream surge tank. The governing system is made up of a tunnel, a surge tank, a penstock, a wicket gate and servomechanism, a governor, a hydro-turbine and a grid. Concerning the components of the governing system, their mathematic models are established. Then, these models are interconnected ...
A six-dimensional nonlinear hydropower system controlled by a nonlinear predictive control method is presented in this paper. In terms of the nonlinear predictive control method; the performance index with terminal penalty function is selected. A simple method to find an appropriate terminal penalty function is introduced and its effectiveness is proved. The input-to-state-stability of the cont...
The hybrid wind–hydro power generation appears to be an attractive solution for isolated, autonomous electric grids in order to increase the wind energy penetration and cost-effectiveness. This work presents a numerical methodology for optimum sizing of the various components of a reversible hydraulic system designed to recover the electric energy that is rejected from wind farms due to imposed...
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