SWS 2007 Lecture Notes - Lecture 4: Parabolic Trough, Rift Valley
26 Jan 2017
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6% of total consumption freshwater withdrawal in the u. s. Photovoltaic panel-sun electricity (cid:862)no(cid:374)-co(cid:374)su(cid:373)pti(cid:448)e(cid:863) 2. 5% of water lost due to evaporation. Concentrated solar- solar parabolic trough which temperature raises up to 400 degrees celsius. This makes the water boil, produces steam, turns turbine, and then produces energy. Methane combustion: the overall reaction produces energy: heat. About twice the energy output of an equivalent amount of coal. Natural gas is a fossil fuel like oil and coal formed from the remains of plants and animals that lived million years ago. (organic matter which contains carbon and hydrogen) Natural gas can be often found 1-2 miles below the surface where it can be trapped in rock formations. Some might migrate upwards towards the surface through the fractures of the rocks. Gas rises near the surface and gets trapped below rock and materials. Deep natural gas- depths can exceed 15,000 ft (3 miles)
