Section_20180329.pptx - ENVR E-103(24429 Section Shaojie Song April 1 2018(a 500 MW = 500 x 106 W One week = 7 days = 7 x 24 hours 500 x 106 W x 7 x 24

Section_20180329.pptx - ENVR E-103(24429 Section Shaojie...

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ENVR E-103 (24429) Section Shaojie Song March 29, 2018 April 1, 2018
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(a) 500 MW = 500 x 10 6 W One week = 7 days = 7 x 24 hours 500 x 10 6 W x 7 x 24 hours = ? kWh (b) ? kWh / 2460 kWh = ? tons (c) ? kWh / (8.76x10 9 kWh/ton) = ? ton 1 metric ton = 10 3 kg
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2.5 MW x 30% = ? MW Read from graph
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Energy need: 100 kWh/building per day * 155 buildings = ? kWh per day 30% of energy need: ? kWh per day x (0.3) = ? kWh per day Area of south-facing roofs: 75 buildings * 50 m 2 per building = ? m 2 Energy output from roofs: ? m 2 * (1 kWh per day/1 m 2 ) = ? kWh per day Compare energy outputs and needs
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Isotope Relative abundanc e Half-life (yr) 234 U 0.0055% 245,500 235 U 0.72% 7.038×10 8 238 U 99.275% 4.468×10 9 Nuclear Fission
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Boiling Water Nuclear Reactor - fusion/applications-nuclear-fission.php
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( wer.com/faq.htm) The power extracted from the wind by the wind turbine: (W. E. Leithead, 2007) Maximum C
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