lec10 - Energy resources Fossil fuels Coal Oil Gas ...

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Unformatted text preview: Energy resources Fossil fuels ¡ Coal ¡ Oil ¡ Gas ¡ Nuclear energy Petroleum 39% Gas 24% Coal 22% Nuclear 7% Image by MIT OCW. Energy resources Renewable energies ¡ Wind Coal 22% Nuclear 7% Renewables 8% Petroleum 39% Gas 24% Image by MIT OCW. Energy resources Renewable energies ¡ Wind ¡ Solar thermal Coal 22% Nuclear 7% Renewables 8% Petroleum 39% Gas 24% LATITUDE L A T I T U D E LATITUDE + 15 o-15 o 1 2 3 Image by MIT OCW. Image by MIT OCW. Energy resources Renewable energies ¡ Wind ¡ Solar thermal ¡ Photovoltaic Coal 22% Nuclear 7% Renewables 8% Petroleum 39% Gas 24% Image by MIT OCW. Energy resources Renewable energies Æ storage issue ¡ Wind ¡ Solar thermal ¡ Photovoltaic ¡ Hydroelectric (& Tidal) Coal 22% Nuclear 7% Renewables 8% Petroleum 39% Gas 24% Image by MIT OCW. Energy resources Energy conversion Æ Electricity ¡ Electric heating only half as efficient as direct fuel combustion Cool water in Warm water out Waterway Condensate Pump Fuel Generator Steam Turbine Boiler Electrical Energy Condensor Conversion Device Efficiency, η 0.30 0.60 0.70 0.70 0.75 0.05-0.20 0.18-0.40 0.20-0.28 0.32-0.38 0.30-0.35 0.97 0.92 0.98 0.75 0.99 Open fireplace...
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lec10 - Energy resources Fossil fuels Coal Oil Gas ...

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