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From the data in Table 20.4: evaluate the trade-off between GHG emissions and NPV, with and without including the agroecosystem

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From the data in Table 20.4: evaluate the trade-off between GHG emissions and NPV, with and without including the agroecosystem service of carbon sequestration. Discuss the feasibility of producing ethanol from corn versus switchgrass. Note that the ethanol plant processes corn or switchgrass from 10,000 acres of cultivated land. 

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Table 20.4 Data for growing biomass and converting it into transportation fuels [15]. Energy (gasoline gallon eq/unit) Activity Unit Corn with conventional till. Acre Corn without tillage Switchgrass without N fert. Switchgrass with N fert. Wind turbine Solar panel Corn ethanol Switchgrass ethanol GHG emission (kg CO₂eq/unit) 6.83E+04 7.30E+04 5.67E+04 6.07E+04 Acre Acre Acre Unit 0 Unit 0 Plant 4.30E+07 Plant 5.00E+06 GHG uptake (kg CO₂ eq/unit) 2.54E+03 2.48E+03 3.24E+03 3.23E+03 0 0 0 0 0 0 0 0 4.27E+06 7.9E+01 8.02E+07 8.11E+08 Net present value ($/unit) 6.67E+02 5.87E+02 -4.88E+02 -5.31E+02 -3.01E+05 -7.23E+02 -6.88E+06 -9.17E+06

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Trade off between GHG emissions and NPV Table 20 4 shows the following trade offs between GHG emissions and NPV With carbon sequestration Corn ethanol …View the full answer


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Sustainable Engineering Principles And Practice

Sustainable Engineering Principles And Practice

ISBN: 9781108420457

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Question Details
Chapter # 20- Ecosystem in Engineering
Section: Problems
Problem: 8
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Question Posted: September 16, 2023 07:35:47
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