Registro completo |
Provedor de dados: |
AgEcon
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País: |
United States
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Título: |
The Energy Balance of Corn Ethanol: An Update
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Autores: |
Shapouri, Hosein
Duffield, James A.
Wang, Michael Q.
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Data: |
2005-11-09
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Ano: |
2002
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Palavras-chave: |
Ethanol
Net energy balance
Corn production
Energy
Crop Production/Industries
Resource /Energy Economics and Policy
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Resumo: |
Studies conducted since the late 1970s have estimated the net energy value (NEV) of corn ethanol. However, variations in data and assumptions used among the studies have resulted in a wide range of estimates. This study identifies the factors causing this wide variation and develops a more consistent estimate. We conclude that the NEV of corn ethanol has been rising over time due to technological advances in ethanol conversion and increased efficiency in farm production. We show that corn ethanol is energy efficient as indicated by an energy output:input ratio of 1.34.
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Tipo: |
Report
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Idioma: |
Inglês
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Identificador: |
18952
http://purl.umn.edu/34075
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Editor: |
AgEcon Search
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Relação: |
United States Department of Agriculture>Economic Research Service>Agricultural Economics Reports
Agricultural Economic Report No. 814
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Formato: |
19
application/pdf
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