miércoles, 20 de enero de 2016

Centrals in Gran Canaria #2


The combined cycle plant consists of two gas turbines and one steam interconnected. It is ready to operate in open cycle , ie exclusively using gas turbines . Uses seawater for cooling open and meets all environmental requirements , both in the European and Spanish legislation circuit. In 1998 , the plant received the certificate of AENOR ISO 14001 environmental management . In 2002 , the plant obtained EMAS environmental certification , which is based on the EMAS Regulation of the European Union.

Barranco de Tirajana power station has two groups of fuel oil , two gas turbine and combined cycle two groups in the town of San Bartolome de Tirajana , in the southeast of the island of Gran Canaria.Currently it has an output of 80 MW. The Steam Room 2 group , also 80 MW , became operational in 1996. Both use fuel oil of low sulfur content fuel.

Centrals in Gran Canaria


Jinámar's power plant is a power plant with five sets of fuel oil , where three of which are used to purify sea water. In turn, it has three gas turbines and diesel five groups . It is situated in the municipality of Las Palmas .The first gas turbine group ( diesel used as fuel ) was connected to the network in 1981. Its power is 23.45 MW. In 1989 , they joined the generation park central two other groups of 37.5 MW. The first three groups diesel joined the central between 1973 and 1974. Each of them has a power of 12 MW. In 1990 went into production two diesel groups of 24 MW each 1.3 In 2005 , the center received from the hand of AENOR environmental management certificate ISO 14001 , certifying that its activities are conducted in a way that respects the environment.



Enviroment impact

 All energy sources have some impact on our environment. Fossil fuels — coal, oil, and natural gas  do substantially more harm than renewable energy sources by most measures, including air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions.


Wind Power



Harnessing power from the wind is one of the cleanest and most sustainable ways to generate electricity as it produces no toxic pollution or global warming emissions. Wind is also abundant, inexhaustible, and affordable, which makes it a viable and large-scale alternative to fossil fuels.

Despite its vast potential, there are a variety of environmental impacts associated with wind power generation that should be recognized and mitigated


Solar Power

Like wind power, the sun provides a tremendous resource for generating clean and sustainable electricity.

The environmental impacts associated with solar power can include land use and habitat loss, water use, and the use of hazardous materials in manufacturing, though the types of impacts vary greatly depending on the scale of the system and the technology used — photovoltaic (PV) solar cells or concentrating solar thermal plants (CSP).



Biomass for Electricity

Biomass power plants share some similarities with fossil fuel power plants: both involve the combustion of a feedstock to generate electricity. Thus, biomass plants raise similar, but not identical, concerns about air emissions and water use as fossil fuel plants. However, the feedstock of biomass plants can be sustainable produced, while fossil fuels are non-renewable.

Sources of biomass resources for producing electricity are diverse; including energy crops (like switchgrass), agricultural waste, manure, forest products and waste, and urban waste. Both the type of feedstock and the manner in which it is developed and harvested significantly affect land use and life-cycle global warming emissions impacts of producing power from biomass.


Hydroelectric Power


Hydroelectric power includes both massive hydroelectric dams and small run-of-the-river plants. Large-scale hydroelectric dams continue to be built in many parts of the world (including China and Brazil), but it is unlikely that new facilities will be added to the existing U.S. fleet in the future.
Instead, the future of hydroelectric power in the United States will likely involve increased capacity at current dams and new run-of-the-river projects. There are environmental impacts at both types of plants.

Electrical power plants non-conventional

The environmental problems caused by conventional power plants have led to the creation and development of non-conventional or alternative.

Wind farms use the kinetic energy of the wind to move the blades of a rotor at the top of a tower.

Solar power plants use the Sun's energy. There are two types: Photo-thermal are thermal power plants in which steam is produced by solar radiation. While photovoltaic power plants transform solar radiation directly into a electricity using panels.

Biomass: Consists of all organic comòunds that are produced trhought natural process.

Geothermal power plants: Use the heat found at deep layers in the Earth, whle ocean power plants use he energy from the oceans and seas; waves or thermal gradient

                             

Electrical power plants Conventional

Thermal power plants: Water is heated in a boiler by the heat generated from the combustion of a fossil fuel ( natural gas, coal or petroleum)

Combined cycle power plants: Obtain electricity as the result of two combined cycles; a cycle that uses air and gas and a conventional thermal cycle.

Nuclear power plants: Use a nuclear fission reactor that produces hat to generate the pressurised steam needed to mobe the turbine rotor.

Hydroelectric power plants: Use it by the height of the water stored in a dam, converting it into kinetic energy.This energy moves the blades of the turbine. There are two types: gravity and pump

lunes, 18 de enero de 2016

Electric Power Plants

A power plant or a power generating station, is basically an industrial location that is utilized for the generation and distribution of electric power in mass scale, usually in the order of several 1000 Watts. These are generally located at the sub-urban regions or several kilometers away from the cities or the load centers, because of its requisites like huge land and water demand, along with several operating constraints like the waste disposal etc. For this reason, a power generating station has to not only take care of efficient generation but also the fact that the power is transmitted efficiently over the entire distance. And that’s why, the transformer switch yard to regulate transmission voltage also becomes an integral part of the power plant.At the center of it, however, nearly all power generating stations has an A.C. generator or an alternator, which is basically a rotating machine that is equipped to convert energy from the mechanical domain (rotating turbine) into electrical domain by creating relative motion between a magnetic field and the conductors. The energy source harnessed to turn the generator shaft varies widely, and is chiefly dependent on the type of fuel used.



Electrical Energy Transmission

The process of getting electricity to consumer or to our homes, offices and industries is actually by Generation, Transmission and Distribution of Electricity. Electricity generation, which is the first process in the delivery of electricity to consumer is the process of generating electric power from other sources of primary energy. This primary energy can be water, gas, sun, steam, wind, fossil, waste etc. Electricity is most often generated at a power station by electromechanical generators, primarily driven by heat engines fueled by chemical combustion or nuclear fission but also by other means such as the kinetic energy of flowing water and wind.