sas, Little Rock-PHYS 1321-Fall17-BLANTON Activities and Due Dates > HW: Work an
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sas, Little Rock-PHYS 1321-Fall17-BLANTON Activities and Due Dates > HW: Work and Energy 10/24/2017 06:00 PM 24.3/100 10/22/2017 07:57 PM Gra PrintCalculatorPeriodic able uestion 17 of 30 Sapling Learning Map A challenge gaining prominence throughout the planet is the increased need for "green" or sustainable energy. In certain parts of the country, wind farms are a viable alternative to conventional energy sources. An average wind turbine (the device which converts rotational motion to electricity) has a maxomum of 2.00 MW. However, realistically the wind turbine never runs at full power. If a wind turbine runs at 26.6% capacity for 1.00 year, how much energy does the wind turbine generate? Number kWh An average American household consumes 9.0x 10 kWh in 1.00 year. How many houses can the one wind turbine power? O 4.2 x10 O 0.0019 O 100 O 520 Number of houses O Previous Gvo Up & View Scation Check Answer Next -8E1Explanation / Answer
given
capacity C = 2 MW = 2000KW
it runs at 26.6%
so C = 2000 x .266 = 532 KW
we know that The production of power over time is measured in megawatt-hours (MWh) or kilowatt-hours (kWh) of energy.
so the generated energy will be equals to the division of generation capacity over the time for how much we have to calculate the energy
so geberated energy in one year will be
E = C / hours in one year
E =532 / 8760 (KWh)
E = 0.06073059(KWh) Ans
given
the consuption of energy by a consumer for a year is = 9 x 103 (KWh) or 9(MWh)
so the no of houses will be = (consuption of energy in a year by consumers) / (energy generated in a year)
No, of houses = 9 x 103 / E
No. = 9 x 103 / 0.06073059
NO. = 148.1955 x 103 Ans
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