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Uncertainty information is essential for the proper use of life cycle assessment and environmental assessments in decision making. To investigate the uncertainties of biodiesel and determine the level of confidence in the assertion that biodiesel is more environmentally friendly than diesel, an explicit analytical approach based on the Taylor series expansion for lognormal distribution was applied in the present study. A biodiesel case study demonstrates the probability that biodiesel has a lower global warming and non-renewable energy score than diesel, that is 92.3% and 93.1%, respectively. The results indicate the level of confidence in the assertion that biodiesel is more environmentally friendly than diesel based on the global warming and non-renewable energy scores. Copyright © 2011 Elsevier Ltd. All rights reserved.

Citation

Jinglan Hong. Uncertainty propagation in life cycle assessment of biodiesel versus diesel: global warming and non-renewable energy. Bioresource technology. 2012 Jun;113:3-7

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PMID: 22178489

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