The mathematic representation of the tailrace elevation as function of the water release can be modified, for example, by the geomorphologic impact of large floods. The level-release polynomial from a hydroelectric plant is important information to computational models used for optimization and simulation of the power generation systems operation. They depend on data quality to provide reliable...

The generation of reliable information for improving the understanding of hydroelectric reservoir dynamics is fundamental for guiding decision-makers to implement best management practices. In this way, we assessed the performance of different interpolation algorithms to map the bathymetry of the Tucuruí hydroelectric reservoir, located in the Brazilian Amazon, as an aid to manage and operate A...

Studies on helminthfauna of marsh deer Blastocerus dichotomus Illiger, 1815 are rare, although helminthic diseases are an important cause of mortality in these animals. Fifteen male and female adult marsh deer from Sergio Motta's hydroelectric power station flooding area at Paraná River which died during the capture and quarantine procedures, between 1998 and 1999, were necropsied. Three tremat...

The global demand for renewable energy in recent decades has continued to increase, despite adverse economic conditions such as world economic recessions, trade disputes, and falls in gas and oil prices. During this period, the United States and Europe have led the development of renewable energy technologies, but now emerging countries such as China, Brazil, India, and the Republic of Korea ar...

Electricity production is a challenging issue when it comes to mitigating greenhouse gases (GHG) emissions without risking development goals. Non-renewable energy sources, as fossil fuel burning, account for most of the global energy production (68% in 2007) and are responsible for most of the anthropogenic GHG emissions to the atmosphere (40%, International Panel on Climate Change IPCC, 2007)....

With the increase of power generation from renewable energy sources and due to their intermittent nature, the power grid is facing the great challenge in maintaining the power network stability and reliability. To address the challenge, one of the options is to detach the power generation from consumption via energy storage. The intention of this paper is to give an overview of the current tech...

Many developed nations depend on oil for the production of gasoline, diesel, and natural gas. Meanwhile, oil shortages progress and bottlenecks in oil productions continue to materialize. These and other factors result in an energy crisis, which cause detrimental social and economic effects. Because of the impending energy crisis, various potential energy sources have developed including solar,...

Hydroelectric power plants’ operational decisions are associated with several factors, such as generation planning, water availability and dam safety. One major challenge is to control the spillage from reservoir. Although this action represents a loss of energy production, it powerful strategy regulate reservoir level, ensuring dam’s The decision use must be made in advance based on level dema...

The rapid increase in the world population along with rising trend of global economic growth triggers serious problems related to energy consumption. In this regard, a comprehensive analysis current and potential situation light demographic trends, main indicators, technical conditions, social environmental concerns has become significant issue for developing well-planned regional strategies. s...

Such methods as droop method, curve shifting method and master-slave were primarily developed for voltage frequency regulation in isolated power systems with synchronous generators. In modern induction generators, regulated dump loads, energy storage devices AC/DC AC/DC/AC converters, etc. are used addition to The investigation of new configurations is closely tied further development control l...