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Volcano Power

Volcano Power. Kevin Kwong and Tyler Szwarc. http://www.volcano.si.edu/world/find_regions.cfm. Rising Ash Plume. Volcano Power. Cooling of Erupted Material. Total energy = movement of volcanic material + energy lost due to cooling of ejected material. Crust.

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Volcano Power

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  1. Volcano Power Kevin Kwong and Tyler Szwarc http://www.volcano.si.edu/world/find_regions.cfm

  2. Rising Ash Plume Volcano Power Cooling of Erupted Material Total energy = movement of volcanic material + energy lost due to cooling of ejected material Crust Movement of Molten Material Mantle

  3. Movement of Volcanic Material • Change in potential energy of lava and ash • Elava = m g h • m = 1.16x1013 kg/yr • g = 9.8 m/s2 • h = 35 km for continental, 10 km for oceanic • 3 oceanic eruptions per continental • Plava= 3.15*1010W Ash Lava Crust Mantle

  4. Movement of Volcanic Material • Change in potential energy of lava and ash • Eash = m g h • m = 6.5*1010kg/yr • g = 9.8 m/s2 • h = 45 km • Pash= 9.1 *108 W • Ptotalmaterial = 3.25 *1010W Ash Lava Crust Mantle

  5. Heat released and total energy • m= (Volume of Lava= 4x109 m3/yr)*(Density of Lava=2.9x103 kg/m3) = 1.16x1013 kg/yr • c= 1700 J/ kg °C • T= 1200°C - 100°C = 1100°C • L= 560 J/g • P= 7.07 x 1011 Watts • P= Plava + Pash+ PQ =7.40 x 1011 Watts Ash Lava Crust Mantle

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