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首页> 美国政府科技报告 >COMPARISON OF GEOTHERMAL ENERGY WITH COAL, OIL, AND NATURAL GTS FOR SELECTED USES
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COMPARISON OF GEOTHERMAL ENERGY WITH COAL, OIL, AND NATURAL GTS FOR SELECTED USES

机译：地热能与煤，油和天然GTs的比较用途

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Environmental effects and energy efficiencies for Geothermal energy, Western strip mined coal, and Eastern underground mined coal applied to space heating, process heat, and electric drive have been compared. The measure of an environmental effect is the amount of residual material re-leased to the environment, and the measure of energy efficiency is the "second law efficiency" of the process involved. The results indicate that geothermal energy efficiencies (second law) are higher than those for coal for all three end uses. The environmental effects for geothermal supply systems are smaller than those for coal in the cases of space heat and process heat and are comparable in the case of electric drive. The optimum allocation of a finite geothermal resource and a finite coal resource between space heat and electric drive has been evaluated from the viewpoint of maximum end use service. The results indicate that, to the extent that locational factors permit, geothermal energy should be used for space heat and coal for electric drive.

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