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篇目详细内容 |
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【篇名】 |
Cost of non-renewable energy in production of wood pellets in China |
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【刊名】 |
Frontiers of Earth Science |
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【刊名缩写】 |
Front. Earth Sci |
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【ISSN】 |
2095-0195 |
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【EISSN】 |
2095-0209 |
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【DOI】 |
10.1007/s11707-013-0358-y |
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【出版社】 |
Higher Education Press and Springer-Verlag Berlin
Heidelberg |
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【出版年】 |
2013 |
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【卷期】 |
7
卷2期 |
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【页码】 |
199-205
页,共
7
页 |
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【作者】 |
Changbo WANG;
Lixiao ZHANG;
Jie LIU;
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【关键词】 |
wood pellet; non-renewable energy (NE); hybrid life cycle analysis (LCA); bio-fuel |
【摘要】 |
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Assessing the extent to which all bio-fuels that are claimed to be renewable are in fact renewable is essential because producing such renewable fuels itself requires some amount of non-renewable energy (NE) and materials. Using hybrid life cycle analysis (LCA)—from raw material collection to delivery of pellets to end users—the energy cost of wood pellet production in China was estimated at 1.35？J/J, of which only 0.09？J was derived from NE, indicating that only 0.09？J of NE is required to deliver 1？J of renewable energy into society and showing that the process is truly renewable. Most of the NE was consumed during the conversion process (46.21%) and delivery of pellets to end users (40.69%), during which electricity and diesel are the two major forms of NE used, respectively. Sensitivity analysis showed that the distance over which the pellets are transported affects the cost of NE significantly. Therefore the location of the terminal market and the site where wood resources are available are crucial to saving diesel. |
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