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Task 2

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Task 2

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  1. Task 2 Students: Sutu Oana Rusu Ioana Madalina Andrei Elena Bianca

  2. I. 2000 MW/2MW= 1000 wind power plants II. In present, in Romania are installed wind power plants with a capacity of almost 2.000 MW, bigger than the power of the nuclear power plant from Cernavodă.

  3. The map of wind power plants in function:

  4. Areas with wind power plants: • Dobrogea: Most wind turbines are located in Dobrogea, over 500. In Romania are installed in this moment over one thousand which produce 3% of total energy. The Dobrogea region, which consists of Constanța and Tulceacounties, has the second-highest wind potential in Europe. The Fântânele-Cogealac Wind Farm is the largest onshore wind farm in Romania, with installed nameplate capacity of 600 MW from 240 General Electric 2.5xl wind turbines. The wind farm has been built for the ČEZ Group. The wind farm occupies 1,100 hectares (2,700 acres) of open field, 600 hectares (1,500 acres) in Fântânele and 500 hectares (1,200 acres) in Cogealaccommunes. The wind farm is being constructed in the north part of Constanța, 17 kilometres (11 mi) west from the shore of theBlack Sea. Gebelesis plant, situated in the north part of Dobrogea, consists of five turbines of 3 MW each other and other six turbines of 2 MW each other, with a total installed capacity of 27 MW. • Bistrița-Năsăud: Capacity of 250 KW; the field has a surface of 800hectares; • Buzău - Surface of 80 hectares; • Baia - Surface of 80 hectares; • Mehedinți - Surface of 250 hectares; • Tulcea - Surface of 180 hectares of field.

  5. The Fântânele-Cogealac Wind Farm

  6. III. • Cernavodă NuclearPower In Romania the onlynuclear plant, isat Cernavodă, Constanța – the seaport of Romania. Currentlyworksunits I and II, whichtogetherproduce a quantity of electricenergy of 11,747 milionsMWh, aproximately 18% from of the country'selectricityconsumption.The unit itwasdone in 1996, has an installed power of 706 MW and produces about 5 TWh annually. • The geothermalenergy The thermal level of geothermal waters in the western part of the country isreduced: 30 – 900 C.In the Bihor county, the Oradea city provides hot water for 800 apartments, are heated12 apartments, bathrooms,vegetalgreenhouses, pools, hotels.The exploitation of geothermal sources from the country to produceelectricityis impossible, because ageothermalgenerator assumes a huge initial pressure at temperature of the fluid of work of over 1500C.

  7. The principal hydroelectric plants: But the mostrivers are manysmallhydroelectric plants. For example, in our county, the Bistrita river is the big hydroelectric plant Stejaru and 10 smaller.

  8. Biomass Romania has a high potential of renewable energy, especially hydro,eolian and biomass. The biomass, comes especially from agricultural waste (60%), and forest (20%). The biggest plant of cogeneration based on biomass from Romania is at Rădăuți, with a capacity of 22 MW, of which 17 MW thermal energy and 5 MW electric power. There are some initiatives to use modern technologies based on saw dust in order to produce warmth, and the principle gasification the wood for cogeneration. The waste of energy can be avoided if: • Replace traditional bulbs with economics; • Use Motion sensor lights; • Removeelectronicsfromoutlet; • Reduce the screenbrightness; • Buyelectronicsfrom Class A (or A + or A + +); • Keep the fridgedoor open only if necessary; • In case of a trip of a few days, unplug all handsets and adjust boiler / central heatingat the lowesttemperature.

  9. A megawatt (MW) is a decimal multiple of the derived unit of power in the International System of Units (SI) watt, which is defined as one joule per second. Power measures the rate of energy conversion or the rate at which work is done. One watt is the rate at which work is done when an object’s velocity is held constant at one meter per second against constant opposing force of one newton. In electromagnetism, one watt is defined as the rate at which work is done when one ampere of current flows across a potential difference of one volt. Example: A typical wind turbine can produce one or several megawatts of electrical power. • 1 megawatt = 0.001 gigajoule/second • 1 megawatt-hour = 3.6 gigajoule