14-IE-27Feb-08

14-IE-27Feb-08 - Solar Radiation Material Flows in the...

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Industrial Ecology – Winter 2008– Session 14 – February 27 Ecosphere Ecosphere Anthroposphere Anthroposphere Materials Sink for: Wastes & Emissions Needs & Wants Solar Radiation (T eff ~ 6000K mainly UV, optical and IR) Earth’s Radiation (T eff ~ 300K mainly IR) Services Products Production • All materials that enter the economic system will eventually leave it • Large amounts of low-entropy energy are needed to drive the economic system • All economic activity is essentially dissipative of both energy and materials Low-entropy Energy Material Flows in the Economy Material Flows in the Economy high-entropy Energy
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Industrial Ecology – Winter 2008– Session 14 – February 27 Ecosphere Ecosphere Anthroposphere Anthroposphere Materials Sink for: Wastes & Emissions Needs & Wants Solar Radiation (T eff ~ 6000K mainly UV, optical and IR) Earth’s Radiation (T eff ~ 300K mainly IR) Services Products Production • Closing material loops • Dematerialization • Avoiding hazardous and toxic substances • Thermodynamically efficient use of energy Low-entropy Energy Towards Industrial Ecosystems Towards Industrial Ecosystems high-entropy Energy
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Industrial Ecology – Winter 2008– Session 14 – February 27 Natural Environment Raw Materials Final Products
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This note was uploaded on 08/06/2008 for the course ESM 282 taught by Professor Geyer during the Spring '08 term at UCSB.

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14-IE-27Feb-08 - Solar Radiation Material Flows in the...

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