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THE ENERGY BALANCE OF CORN ETHANOL REVISITED
Abstract
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 identifiesthe factors causing this wide variation and develops a more consistent estimate. We conclude that the NEV of corn ethanolhas 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 and 1.53 under a bestcasescenario.
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Cited by
Ethanol Can Contribute to Energy and Environmental Goals
Farrell, A. E., Plevin, R. J., Turner, B. T., Jones, A. D., O'Hare, M., & Kammen, D. M. (2006) · Science · doi:10.1126/science.1121416 · Cited by 2,823
Trends in biotechnological production of fuel ethanol from different feedstocks
Sánchez, Ó. J., & Cardona, C. A. (2008) · Bioresource Technology · doi:10.1016/j.biortech.2007.11.013 · Cited by 1,826
LIFE-CYCLE ASSESSMENT OF NET GREENHOUSE-GAS FLUX FOR BIOENERGY CROPPING SYSTEMS
Adler, P. R., Grosso, S. J. D., & Parton, W. J. (2007) · Ecological Applications · doi:10.1890/05-2018 · Cited by 652
Modeling the process and costs of fuel ethanol production by the corn dry-grind process
Kwiatkowski, J. R., McAloon, A. J., Taylor, F., & Johnston, D. B. (2006) · Industrial Crops and Products · doi:10.1016/j.indcrop.2005.08.004 · Cited by 474
Effects of ethanol (E85) versus gasoline vehicles on cancer and mortality in the United States
Jacobson, M. Z. (2007) · Environmental Science & Technology · doi:10.1021/es062085v · Cited by 325
Metadata
- Authors
- Shapouri, H., Duffield, J. A., & Wang, M.
- Venue
- Transactions of the ASAE
- Published
- 2003
- Volume
- 46
- Issue
- 4
- ISSN
- 0001-2351 (ISSN-L)
- 2151-0059
- OpenAlex
- W2013668287
- Cited by
- 162
- References
- 0
- FWCI
- 3.07
- Type
- journal article
- Language
- en
- Open access
- closed
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- Shapouri, H., Duffield, J. A., & Wang, M. (2003). THE ENERGY BALANCE OF CORN ETHANOL REVISITED. Transactions of the ASAE. https://doi.org/10.13031/2013.13951
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