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Dynamic Life Cycle Assessment Modeli...

Morrison, Brandon Craig.

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Dynamic Life Cycle Assessment Modeling Approaches for Transboundary Energy Feedstocks.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Dynamic Life Cycle Assessment Modeling Approaches for Transboundary Energy Feedstocks./
作者:	Morrison, Brandon Craig.
面頁冊數:	175 p.
附註:	Source: Dissertation Abstracts International, Volume: 77-09(E), Section: B.
Contained By:	Dissertation Abstracts International77-09B(E).
標題:	Energy. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10103803
ISBN:	9781339673479

Dynamic Life Cycle Assessment Modeling Approaches for Transboundary Energy Feedstocks.
Morrison, Brandon Craig.

Dynamic Life Cycle Assessment Modeling Approaches for Transboundary Energy Feedstocks. - 175 p.

Source: Dissertation Abstracts International, Volume: 77-09(E), Section: B.

Thesis (Ph.D.)--Duke University, 2016.

The rise of the twenty-first century has seen the further increase in the industrialization of Earth's resources, as society aims to meet the needs of a growing population while still protecting our environmental and natural resources. The advent of the industrial bioeconomy---which encompasses the production of renewable biological resources and their conversion into food, feed, and bio-based products---is seen as an important step in transition towards sustainable development and away from fossil fuels. One sector of the industrial bioeconomy which is rapidly being expanded is the use of biobased feedstocks in electricity production as an alternative to coal, especially in the European Union.

ISBN: 9781339673479Subjects--Topical Terms:

876794
Energy.

Dynamic Life Cycle Assessment Modeling Approaches for Transboundary Energy Feedstocks.
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245 1 0 $a Dynamic Life Cycle Assessment Modeling Approaches for Transboundary Energy Feedstocks.
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500 $a Source: Dissertation Abstracts International, Volume: 77-09(E), Section: B.
500 $a Advisers: Jay S. Golden; Lincoln Pratson.
502 $a Thesis (Ph.D.)--Duke University, 2016.
520 $a The rise of the twenty-first century has seen the further increase in the industrialization of Earth's resources, as society aims to meet the needs of a growing population while still protecting our environmental and natural resources. The advent of the industrial bioeconomy---which encompasses the production of renewable biological resources and their conversion into food, feed, and bio-based products---is seen as an important step in transition towards sustainable development and away from fossil fuels. One sector of the industrial bioeconomy which is rapidly being expanded is the use of biobased feedstocks in electricity production as an alternative to coal, especially in the European Union.
520 $a As bioeconomy policies and objectives increasingly appear on political agendas, there is a growing need to quantify the impacts of transitioning from fossil fuel-based feedstocks to renewable biological feedstocks. Specifically, there is a growing need to conduct a systems analysis and potential risks of increasing the industrial bioeconomy, given that the flows within it are inextricably linked. Furthermore, greater analysis is needed into the consequences of shifting from fossil fuels to renewable feedstocks, in part through the use of life cycle assessment modeling to analyze impacts along the entire value chain.
520 $a To assess the emerging nature of the industrial bioeconomy, three objectives are addressed: (1) quantify the global industrial bioeconomy, linking the use of primary resources with the ultimate end product; (2) quantify the impacts of the expanding wood pellet energy export market of the Southeastern United States; (3) conduct a comparative life cycle assessment, incorporating the use of dynamic life cycle assessment, of replacing coal-fired electricity generation in the United Kingdom with wood pellets that are produced in the Southeastern United States.
520 $a To quantify the emergent industrial bioeconomy, an empirical analysis was undertaken. Existing databases from multiple domestic and international agencies was aggregated and analyzed in Microsoft Excel to produce a harmonized dataset of the bioeconomy. First-person interviews, existing academic literature, and industry reports were then utilized to delineate the various intermediate and end use flows within the bioeconomy. The results indicate that within a decade, the industrial use of agriculture has risen ten percent, given increases in the production of bioenergy and bioproducts. The underlying resources supporting the emergent bioeconomy (i.e., land, water, and fertilizer use) were also quantified and included in the database.
520 $a Following the quantification of the existing bioeconomy, an in-depth analysis of the bioenergy sector was conducted. Specifically, the focus was on quantifying the impacts of the emergent wood pellet export sector that has rapidly developed in recent years in the Southeastern United States. A cradle-to-gate life cycle assessment was conducted in order to quantify supply chain impacts from two wood pellet production scenarios: roundwood and sawmill residues. For reach of the nine impact categories assessed, wood pellet production from sawmill residues resulted in higher values, ranging from 10--31% higher.
520 $a The analysis of the wood pellet sector was then expanded to include the full life cycle (i.e., cradle-to-grave). In doing to, the combustion of biogenic carbon and the subsequent timing of emissions were assessed by incorporating dynamic life cycle assessment modeling. Assuming immediate carbon neutrality of the biomass, the results indicated an 86% reduction in global warming potential when utilizing wood pellets as compared to coal for electricity production in the United Kingdom. When incorporating the timing of emissions, wood pellets equated to a 75% or 96% reduction in carbon dioxide emissions, depending upon whether the forestry feedstock was considered to be harvested or planted in year one, respectively.
520 $a Finally, a policy analysis of renewable energy in the United States was conducted. Existing coal-fired power plants in the Southeastern United States were assessed in terms of incorporating the co-firing of wood pellets. Co-firing wood pellets with coal in existing Southeastern United States power stations would result in a nine percent reduction in global warming potential.
590 $a School code: 0066.
650 4 $a Energy. $3 876794
650 4 $a Sustainability. $3 1029978
650 4 $a Environmental management. $3 535182
650 4 $a Alternative Energy. $3 1035473
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690 $a 0640
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710 2 $a Duke University. $b Earth and Ocean Sciences. $3 3194646
773 0 $t Dissertation Abstracts International $g 77-09B(E).
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