DSpace About DSpace Software

DSpace Biblioteca Universidad de Talca (v1.5.2) >
Dirección de Investigación >
Artículos en publicaciones ISI - Universidad de Talca >

Please use this identifier to cite or link to this item: http://dspace.utalca.cl/handle/1950/9463

Title: Greenhouse gas emissions and energy balance of sunflower biodiesel: Identification of its key factors in the supply chain
Authors: Iriarte, A.
Villalobos, P.
Keywords: Biodiesel
Life cycle assessment
Energy demand
Land use change
Issue Date: Apr-2013
Citation: RESOURCES CONSERVATION AND RECYCLING Volume: 73 Pages: 46-52 DOI: 10.1016/j.resconrec.2013.01.014
Abstract: The production of first generation biofuels, such as sunflower-based biodiesel, is potentially an option for diversifying the energy matrix in several South American countries. However, biofuels present environmental challenges, especially concerning the reduction of greenhouse gas (GHG) emissions. This study, using a life-cycle approach, evaluates the GHG emissions and energy balance of the future nationwide production of sunflower-based biodiesel in Chile. Direct land use change is included in the analysis. The overall findings indicate that sunflower biodiesel, under the most likely production conditions, will have better environmental performance than fossil diesel in terms of both indicators. The agricultural stage is associated to key factors such as land use change, and nitrogen fertilizers. These factors contribute significantly to GHG emissions or energy demand in the biodiesel life cycle. The sensitivity analysis shows that no GHG emission saving could occur if nitrogen fertilizers rate exceeds 330 kg N/ha. In order to reduce the environmental impacts of this biofuel, improvement measures are suggested. (C) 2013 Elsevier B.V. All rights reserved.
Description: [ 1 ] Univ Talca, Fac Engn, Dept Ind Management & Modeling, Talca, Chile [ 2 ] CEAP, Chilean Food Proc Res Ctr, Talca, Chile [ 3 ] Univ Talca, Fac Agr Sci, Dept Agr Econ, Talca, Chile
URI: http://dspace.utalca.cl/handle/1950/9463
ISSN: 0921-3449
Appears in Collections:Artículos en publicaciones ISI - Universidad de Talca

Files in This Item:

There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Valid XHTML 1.0! DSpace Software Copyright © 2002-2009  The DSpace Foundation - Feedback