نتایج جستجو برای: hydropower plant
تعداد نتایج: 398271 فیلتر نتایج به سال:
s Research Symposium January 2008 Graduate Student Association Department of Natural Resources Cornell University Mark Bain Hydro Peaking and Green Energy: St. Marys River, Ontario and Michigan Hydropower is a clean, flexible, and renewable energy source but its global benefits can come with significant local impacts and environmental losses. The use of hydropower facilities to track variations...
We present a cost-benefit framework to analyze the interaction between hydropower and salmon in a dynamic context. The framework is used to derive cost-benefit rules for projects that affect wild salmon survival. Our approach is illustrated with data from an ongoing project regarding a potential salmon passage-hydropower conflict in the northern Swedish river Umeälven and its largest salmon pro...
Representing peak and off-peak energy prices is often difficult in hydropower modeling because the time scale of price variability (hours or less) is much shorter than that needed for many operations planning models (days to months). This work extends and examines the reliability of an existing approximate method to incorporate hourly energy price information into revenue functions used in hydr...
Information hidden in the characteristics and relationship data of a cascade hydropower stations can be extracted by data-mining approaches to be operation rules and optimization support information. In this paper, with Three-gorge and Gezhouba cascade hydropower stations as an example, two operation rules are proposed due to different operation efficiency of water turbines and tight water volu...
This paper proposes a coexistence model for two independent companies both operating hydropower plants in the same river flow, based on a case study of the Cetina river basin in Croatia. Companies are participants of the day-ahead electricity market. The incumbent company owns the existing hydropower plants and holds concessions for the water. The new company decides to build a pump storage hyd...
The paper describes and analyses a hydropower system based on siphons in which the pressure of low-head water is converted into air pressure. The analysis suggests that, with careful design of the ow passages to minimize losses, air-pumping ef ciencies of 70 per cent or more should be achievable; the overall ef ciency of the hydropower system should be better than 60 per cent. Although such...
Power production in Korea can be classified into nuclear, thermal, and hydropower generation. The nuclear power plant occupies the largest portion of power generation, whilst hydropower only accounts for 2%. Nevertheless, many people are interested in hydropower generation, because its power generation time is shorter than that of nuclear and thermal power. In addition, it is considered as clea...
This Case Study focuses on a cooperation mechanism developed in Costa Rica between La Esperanza Hydropower Project (downstream water user) and the Monteverde Conservation League, a conservation NGO that owns most of the hydropower plant's upper catchment. The objective of the mechanism is to ensure the conservation of forest cover where it already exists, since forests are perceived to provide ...
In order to solve effectively the issue of remote online detection and fault diagnosis of hydroelectric generating units in FengMan hydropower plant, a kind integrated project of combining embedded network fusion with multi-sensor consistency information fusion algorithm and fuzzy comprehensive assessment algorithm is proposed based on distributed and embedded architecture. Multi-sensor consist...
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