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Modeling And Optimization Of Biomass Supply Chains

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Modeling and Optimization of Biomass Supply Chains

Modeling and Optimization of Biomass Supply Chains Book
Author : Calliope Panoutsou
Publisher : Academic Press
Release : 2017-08-01
ISBN : 9780128123034
Language : En, Es, Fr & De

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Book Description :

Modeling and Optimization of Biomass Supply Chains: Top Down and Bottom up Assessment for Agricultural, Forest and Waste Feedstock provides scientific evidence for assessing biomass supply and logistics, placing emphasis on methods, modeling capacities, large data collection, processing and storage. The information presented builds on recent relevant research work from the Biomass Futures, Biomass Policies and S2Biom projects. In addition to technical issues, the book covers the economic, social and environmental aspects with direct implications on biomass availability. Its chapters offer an overview of methodologies for assessing and modeling supply, biomass quality and requirements for different conversion processes, logistics and demand for biobased sectors. Case studies from the projects that inspire the book present practical examples of the implementation of these methodologies. The authors also compare methodologies for different regions, including Europe and the U.S. Biomass feedstock-specific chapters address the relevant elements for forest, agriculture, biowastes, post-consumer wood and non-food crops. Engineers in the bioenergy sector, as well as researchers and graduate students will find this book to be a very useful resource when working on optimization and modeling of biomass supply chains. For energy policymakers, analysts and consultants, the book provides consistent and technically sound projections for policy and market development decisions. Provides consistent ratios and indicators for assessing biomass supply and its logistical component Explores assumptions behind the assessment of different types of biomass, including key technical and non-technical factors Presents the existing modeling platforms, their input requirements and possible output projections

Modeling and Optimization of Biomass Supply Chain for Energy Chemicals and Materials Productions

Modeling and Optimization of Biomass Supply Chain for Energy  Chemicals and Materials Productions Book
Author : Abdul Halim Abdul Razik
Publisher : Unknown
Release : 2016
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

In the growing concerns towards global environmental qualities and sustainable feedstocks supplies, scientific and technological efforts were intensified to utilize alternative renewable resources. In this regard, biomass appeared to be one of the potential feedstocks because it is generally carbon neutral and essentially renewable. Furthermore, biomass is virtually found in every part of the world in abundance and could provide socio-economic benefits. However, if it is not managed properly, biomass will be less competitive due to several issues that are associated with its supply chain. Typical biomass supply chain has a series of activities such as growing, harvesting, transporting, aggregating, and conversion which systematic and efficient flows of materials from the fields to the users are highly important. Biomass has competing uses, different kinds and origins which are potentially exploitable, poor geographic distributions for retrieving and transporting, and variations in physical and chemical properties. It is difficult to make informed decision for any biomass utilization project without having an optimal supply chain. This research intended to solve those issues by modeling and optimizing biomass supply chains for manufacturing energy, chemicals, and materials based on their respective processing routes. The aim was not only to focus on energy production from biomass but also to include chemicals and materials because of several factors such as an emerging cost competitive energy resource such as shale gas, highly volatile energy prices, and customer's preparedness and acceptances. Furthermore, it also could leverage biomass plantations on the producers' sides. The biomass supply chain model has considered annual profitability of producing products as the performance indicator. It was derived from revenues of selling the products subtracted all the associated costs such as biomass cost, transportation cost, production cost, and emission treatment costs from transportation and production activities. It summed up simultaneously all the profitable processing options that have existed in the superstructure to yield the optimal value, while a single ownership was assumed for the whole supply chain's facilities. Three optimization models have been developed and implemented in GAMS (General Algebraic Modeling System).

Biomass to Biofuel Supply Chain Design and Planning under Uncertainty

Biomass to Biofuel Supply Chain Design and Planning under Uncertainty Book
Author : Mir Saman Pishvaee,Shayan Mohseni,Samira Bairamzadeh
Publisher : Academic Press
Release : 2020-12-01
ISBN : 0128209003
Language : En, Es, Fr & De

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Book Description :

Biomass to Biofuel Supply Chain Design and Planning under Uncertainty: Concepts and Quantitative Methods explores the design and optimization of biomass-to-biofuel supply chains for commercial-scale implementation of biofuel projects by considering the problems and challenges encountered in real supply chains. By offering a fresh approach and discussing a wide range of quantitative methods, the book enables researchers and practitioners to develop hybrid methods that integrate the advantages and features of two or more methods in one decision-making framework for the efficient optimization of biofuel supply chains, especially for complex supply chain models. Combining supply chain management and modeling techniques in a single volume, the book is beneficial for graduate students who no longer need to consult subject-specific books alongside mathematical modeling textbooks. The book consists of two main parts. The first part describes the key components of biofuel supply chains, including biomass production, harvesting, collection, storage, preprocessing, conversion, transportation, and distribution. It also provides a comprehensive review of the concepts, problems, and opportunities associated with biofuel supply chains, such as types and properties of the feedstocks and fuel products, decision-making levels, sustainability concepts, uncertainty analysis and risk management, as well as integration of biomass supply chain with other supply chains. The second part focuses on modeling and optimization of biomass-to-biofuel supply chains under uncertainty, using different quantitative methods to determine optimal design. Proposes a general multi-level framework for the optimal design and operation of biomass-to-biofuel supply chains through quantitative analysis and modeling, including different biomass and waste biomass feedstock, production pathways, technology options, transportation modes, and final products Explores how modeling and optimization tools can be utilized to address sustainability issues in biofuel supply chains by simultaneously assessing and identifying sustainable solutions Presents several case studies with different regional constraints to evaluate the practical applicability of different optimization methods and compares their performance in real-world situations Includes General Algebraic Modeling System (GAMS) codes for solving biomass supply chain optimization problems discussed in different chapters

Modeling and Optimization of Biomass Supply Chains

Modeling and Optimization of Biomass Supply Chains Book
Author : Calliope Panoutsou
Publisher : Academic Press
Release : 2017-08-11
ISBN : 0128123044
Language : En, Es, Fr & De

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Book Description :

Modeling and Optimization of Biomass Supply Chains: Top Down and Bottom Up Assessment for Agricultural, Forest and Waste Feedstock provides scientific evidence for assessing biomass supply and logistics, placing emphasis on methods, modeling capacities, large data collection, processing and storage. The information presented builds on recent relevant research work from the Biomass Futures, Biomass Policies and S2Biom projects. In addition to technical issues, the book covers the economic, social and environmental aspects with direct implications on biomass availability. Its chapters offer an overview of methodologies for assessing and modeling supply, biomass quality and requirements for different conversion processes, logistics and demand for biobased sectors. Case studies from the projects that inspire the book present practical examples of the implementation of these methodologies. The authors also compare methodologies for different regions, including Europe and the U.S. Biomass feedstock-specific chapters address the relevant elements for forest, agriculture, biowastes, post-consumer wood and non-food crops. Engineers in the bioenergy sector, as well as researchers and graduate students will find this book to be a very useful resource when working on optimization and modeling of biomass supply chains. For energy policymakers, analysts and consultants, the book provides consistent and technically sound projections for policy and market development decisions. Provides consistent ratios and indicators for assessing biomass supply and its logistical component Explores assumptions behind the assessment of different types of biomass, including key technical and non-technical factors Presents the existing modeling platforms, their input requirements and possible output projections

Energy Chains Optimization for Selection of Sustainable Energy Supply

Energy Chains Optimization for Selection of Sustainable Energy Supply Book
Author : Srđan Vasković
Publisher : Unknown
Release : 2016
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

The notion of energy chain concept has been defined as the trajectory of energy transformations from the fuel source or energy sources to useful energy form to end users. Production of fuels, heat and electricity from different sources is defined by the appropriate energy supply chain. Every single energy supply chain can be uniquely defined by several sustainability criteria. These criteria are: total energy efficiency of production, total exergy efficiency of overall chain, the coefficient of exergy quality for different products at energy chains, economy of production, investment and environmental criteria. Optimal energy supply chain can be chosen by using multicriteria optimization which fulfils the above-mentioned sustainability criteria. This selected energy chain is close to ideal solution. The ideal energy supply chain is formed from the set of energy production ways which are defined from the perspective of sustainability criteria and which have connection with the current status of technologies, economic, environmental parameters, et cetera The concept of optimization in practice is usually based on economics until recently, often neglecting all the other consequences of such a decision. Therefore, multicriteria decision making (MCDM) improves the opportunities in assessing the optimal variant of energy chain for defined ranking criteria. Before the optimization process, it is necessary to create a mathematical model for calculation of optimization criteria. Also, for each specific case of energy production, it is necessary to develop appropriate mathematical formulas to describe the energy chain. Numerical verification, all mathematical calculations and modelling have been applied and confirmed on wood biomass supply chain for energy production in this case. The reason for this is complexity of supply chains in the bioenergy and representation of renewable energy sources. For total ranking of energy chain for production of fuel or energy and selection of optimum variant, the multicriteria optimization and VIKOR method were applied. The significance of energy production from renewable energy sources is particularly expressed nowadays. Basically, the most significant part in the process of energy production from energy sources is the supply chain, final conversion of energy in useful form at the energy plant and the distribution process to end users. Due to the fact that there are various opportunities for the composition of energy chains of fuel supply and different ways of energy production, it is necessary to try to make a unique mathematical approach for this problem. With the proposed sustainability criteria and developed mathematical model, it is possible to unify the overall problem of energy supply chains' optimization. The proposed developed method can be used for the optimization of any kind of energy supply chains (electricity, heat, fuels or their mix). All of these are enabled by proper selection criteria for the description of overall energy transformations in energy chains and quality evaluation of the energy produced. The developed approach and mathematical model have a very practical application in the selection of optimal variant of energy production and of course in designing new energy chains.

Biomass Supply Chains for Bioenergy and Biorefining

Biomass Supply Chains for Bioenergy and Biorefining Book
Author : Jens Holm-Nielsen,Ehiaze Augustine Ehimen
Publisher : Woodhead Publishing
Release : 2016-02-23
ISBN : 1782423877
Language : En, Es, Fr & De

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Book Description :

Biomass Supply Chains for Bioenergy and Biorefining highlights the emergence of energy generation through the use of biomass and the ways it is becoming more widely used. The supply chains that produce the feedstocks, harvest, transport, store, and prepare them for combustion or refinement into other forms of fuel are long and complex, often differing from feedstock to feedstock. Biomass Supply Chains for Bioenergy and Biorefining considers every aspect of these supply chains, including their design, management, socioeconomic, and environmental impacts. The first part of the book introduces supply chains, biomass feedstocks, and their analysis, while the second part looks at the harvesting, handling, storage, and transportation of biomass. The third part studies the modeling of supply chains and their management, with the final section discussing, in minute detail, the supply chains involved in the production and usage of individual feedstocks, such as wood and sugar starches, oil crops, industrial biomass wastes, and municipal sewage stocks. Focuses on the complex supply chains of the various potential feedstocks for biomass energy generation Studies a wide range of biomass feedstocks, including woody energy crops, sugar and starch crops, lignocellulosic crops, oil crops, grass crops, algae, and biomass waste Reviews the modeling and optimization, standards, quality control and traceability, socioeconomic, and environmental impacts of supply chains

Handbook of Bioenergy

Handbook of Bioenergy Book
Author : Sandra D. Eksioglu,Steffen Rebennack,Panos M. Pardalos
Publisher : Springer
Release : 2015-08-11
ISBN : 3319200925
Language : En, Es, Fr & De

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Book Description :

This handbook brings together recent advances in the areas of supply chain optimization, supply chain management, and life-cycle cost analysis of bioenergy. These topics are important for the development and long-term sustainability of the bioenergy industry. The increasing interest in bioenergy has been motivated by its potential to become a key future energy source. The opportunities and challenges that this industry has been facing have been the motivation for a number of optimization-related works on bioenergy. Practitioners and academicians agree that the two major barriers of further investments in this industry are biomass supply uncertainty and costs. The goal of this handbook is to present several cutting-edge developments and tools to help the industry overcome these supply chain and economic challenges. Case studies highlighting the problems faced by investors in the US and Europe illustrate the impact of certain tools in making bioenergy an economically viable energy option.

Mathematical Modeling Approaches to Designing Cultivation Systems for Algae Biomass Production and Biodiesel Supply Chain Optimization

Mathematical Modeling Approaches to Designing Cultivation Systems for Algae Biomass Production and Biodiesel Supply Chain Optimization Book
Author : Soumya Yadala
Publisher : Unknown
Release : 2015
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Mathematical Modeling Approaches to Designing Cultivation Systems for Algae Biomass Production and Biodiesel Supply Chain Optimization book written by Soumya Yadala, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Biomass combustion science technology and engineering

Biomass combustion science  technology and engineering Book
Author : A.A. Rentizelas
Publisher : Elsevier Inc. Chapters
Release : 2013-04-04
ISBN : 0128087544
Language : En, Es, Fr & De

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Book Description :

The chapter discusses the biomass supply chain, which is responsible for supplying an energy conversion plant with the correct quantity and quality of biomass at the correct time. The chapter first categorizes the biomass and waste streams and presents analytically the biomass supply chain, discussing its structure and characteristics. It then reviews the latest advances in biomass supply chains. The issue of integrating biomass energy conversion into waste management systems is tackled and the advantages and limitations of using biomass, in supply chain terms, are presented. The chapter concludes with future trends in biomass supply chains and logistics, and proposes sources of further information.

Lignocellulosic Biomass to biofuel Supply Chain Optimization with Mobile Densification and Farmers Choices

Lignocellulosic Biomass to biofuel Supply Chain Optimization with Mobile Densification and Farmers  Choices Book
Author : Nibal Tawfiq Albashabsheh
Publisher : Unknown
Release : 2018
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

This dissertation focuses on logistics challenges arising in the biofuels industry. Studies have found that logistics costs in the biomass-to-biofuel supply chain (BBSC) account for 35%-65% of total biofuel production cost. This is mainly due to the low density of biomass that results in high costs associated with biomass transportation, storage, and handling in the biomass-to-biofuel supply chain. Densification provides an as-yet-unexplored opportunity to reduce logistic costs associated with biomass-to-biofuel supply chains. This research advances understanding about biomass-to-biofuel supply chain management through new optimization models. As a first step, the author presents an extensive overview of densification techniques and BBSC optimization models that account for biomass densification. This literature review helps the author to recognize the gaps and future research areas in BBSC studies. These gaps direct the author toward the remaining components of the dissertation. In particular, the literature review highlights two research gaps. First, the review indicates that mobile pelleting holds promise for improved BBSC management, but that there is no mathematical optimization model that addresses this opportunity. Second, currently, there does not exist a model that explicitly accounts for farmers' objectives and their probability to sell biomass to the bioenergy plant in BBSC optimization. To fill the first gap, the author focuses on managing the BBSC considering mobile densification units to account for chances to minimize logistics costs. A mixed integer linear programming model is proposed to manage the BBSC with different types and forms of biomass feedstock and mobile densification units. Sensitivity analysis and scenario analysis are presented to quantify conditions that make mobile densification an attractive choice. The author conducts a case study to demonstrate model applicability and type of analysis that can be drawn from this type of models. The result indicates that mobile pelleting is not an attractive choice under the current economic status. However, modest changes in pelleting cost, satellite storage location fixed cost, and/or travel distances are enough to make mobile pelleting an attractive choice. To fill the second gap, the author introduces a model that explicitly accounts for mobile densification and farmers' probability to supply a bioenergy plant with biomass feedstock. Farmers' probability to provide biomass to the bioenergy plant depends on contract attributes, including expected net return and services provided by the bioenergy plant. The proposed model helps the bioenergy plant to meet biofuel demand while considering farmers' choices that satisfy their own objectives and preferences. The model makes it possible to determine most important factors that influence type of contract offered to each supplier and optimal BBSC design. A case study based on the state of Kansas is conducted to demonstrate how bioenergy plant can benefit from this type of model.

Dynamic Optimization Model for a Lignocellulosic Biorefinery Supply Chain

Dynamic Optimization Model for a Lignocellulosic Biorefinery Supply Chain Book
Author : Joshua Troy Pack
Publisher : Unknown
Release : 2007
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

This original contribution shows that biorefinery supply chains modeled to incorporate the interactions between multiple farms, biorefineries, and demand locations can provide insights that would not be possible with single system studies or "supply side only" models. It is shown that mathematical programming offers useful tools for biorefinery supply chain studies. Topics for further research are discussed.

Spatial and Temporal Optimization of Advanced Biofuel Supply Chains in the United States

Spatial and Temporal Optimization of Advanced Biofuel Supply Chains in the United States Book
Author : Mohamed Laila
Publisher : Unknown
Release : 2017
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

"Biofuels are one of the promising energy alternatives to reduce fossil fuel consumption and combat climate change. Growing civilian and military interest in acquiring cost competitive biofuels have inspired research to develop models that optimize their supply chains. Such models are constrained by several factors, namely the time-consuming data collection and processing, the complexity of formulating a mathematical optimization model, the need to use proprietary solvers, and the requirement for computational resources. To overcome these hurdles, researchers proposed the development of integrated platforms that streamline these activities and increase accessibility to the required algorithms and hardware. Hence, the objectives of this thesis were to 1) formulate deterministic and stochastic mathematical optimization models to optimize biofuel supply chains in a spatially and temporally explicit manner, and test their resilience under uncertainty, 2) design a web-based platform that integrates the proposed model with Application Program Interfaces and publicly available databases to construct user-defined case studies and solve optimization problems on third-party cloud servers, and 3) demonstrate the suitability of the integrated platform to generate military biofuel supply chains in several case studies from the Pacific region of the United States. The integrated platform is called the Biofuel supply chain Geospatial and Temporal Optimizer (BioGeSTO). The first version of BioGeSTO included a deterministic, spatial and temporal explicit, Mixed-Integer Linear Programming (MILP) model that accounts for improvements in conversion yields due to technology learning and account for future oil prices. The model was applied to a case study in California between 2020 and 2040 to determine whether direct financial incentives, provided to conversion facilities, expedited the development of the military biofuel supply chain for three oil price scenarios. It was concluded that direct financial incentives will have little or no effect on the development of the supply chain. The second version of BioGeSTO expanded the platform to include a stochastic MILP that was used to evaluate the impact of uncertainty pertaining to the availability and cost of biomass, and oil prices on the same supply chain. The supply chain had approximately 65% chance of emerging under these scenarios. I found that a Hydrotreatment of Esters and Fatty Acids (HEFA) facility dedicated to processing camelina oil (obtained from agricultural land in central California, where it is grown in rotation with wheat) could be introduced between 2020 and 2027 as a reliable and financially feasible option for military biofuels supply in the state. The final version of BioGeSTO, which included an interactive web interface, was used to determine how carbon pricing affected the military biofuel supply chain in the Pacific states of California, Oregon, and Washington. Introducing a carbon price improved the net present value and total cumulative production of the military biofuel supply chain under several oil price scenarios. Overall, BioGeSTO, an integrated platform for modelling and optimizing biofuel supply chain, is a suitable tool for researchers and decision makers to evaluate their case studies. It can be used to test the impact of introducing new policy schemes, technologies, or uncertainties on the design and performance of civilian and military biofuel supply chains. In future research projects, BioGeSTO can be expanded to include tactical and operational decisions (shorter time scales), while user defined heuristics may be added to accelerate the solution times of optimization problems." --

Decision Making for Biomass Based Production Chains

Decision Making for Biomass Based Production Chains Book
Author : Sebnem Yilmaz Balaman
Publisher : Academic Press
Release : 2018-10-02
ISBN : 0128142790
Language : En, Es, Fr & De

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Book Description :

Decision-Making for Biomass-Based Production Chains: The Basic Concepts and Medothologies presents a comprehensive study of key-issues surrounding the integration of strategic, tactical and operational decision levels for supply chains in the biomass, biofuels and biorefining sectors. Comprehensive sections cover biomass resources, harvesting, collection, storage and distribution systems, along with the necessary technical and technological background of production systems. In addition, the basics of decision-making, problems and decision levels encountered in design, management and operation phases are covered. Case studies are supplied in each chapter, along with a discussion and comparative analysis of topics. The book presents a clear vision of advances in the field. Graduate students and those starting in this line of research will also find the necessary information on how to model this kind of complex system. Finally, this comprehensive resource can be used as a guide for non-expert industry decision-makers and government policymakers who need a thorough overview on the industry. Examines analytic methodologies for complex decision-making when designing, deploying and managing biomass and bio-based products supply chains Includes real-life examples of main sustainability indicators, standards and certification schemes from the European Union, United States and worldwide Explores the progress of decision-making procedures to provide a detailed perspective for effective selection of the most reliable solutions for each kind of problem Provides detailed, in-depth analyses of various models and frameworks for their implementation, challenges and solutions Presents multi-criteria and multi-objective decision-making and modeling approaches, including mathematical modeling, simulation-based modeling, and artificial intelligence-based modeling

Biomass Supply Chains

Biomass Supply Chains Book
Author : Sebnem Yilmaz Balaman
Publisher : Academic Press
Release : 2021-05-15
ISBN : 9780128213179
Language : En, Es, Fr & De

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Book Description :

Biomass Supply Chains provides a comprehensive study on the key issues in sustainability and sustainable design of biomass-based fuel and energy systems and supply chains, as well as circular systems for biomass-based production. Economic, environmental, social and technical issues are examined individually at both system/technology and supply chain level, including details on standards and certification schemes. It goes on to explore the methods and tools for sustainability assessment and sustainable design and management, describing each sustainability-related decision level encountered in design, management and operation phases. It also discusses the circular economy concept and explains different analytical tools, industrial engineering and operations research methods to design and manage circular systems. To this aim, the main strategies, methods and tools to create circular systems and to convert traditional linear systems into circular systems are introduced, as well as key waste management and resource use strategies. All issues discussed are illustrated through real-life cases. At the end of each chapter, a discussion and a comparative analysis of their topics is provided. By integrating all these problematics and challenges in sustainability and circular design, this book allows researchers in academia and industry working on developing biomass-based solutions to clearly identify the methodologies and tools that satisfy their specific sustainability and circularity requirements based on the recent advances and prospects in the field. Graduate students and practitioners can also use this reference as systematic guide to available sustainability assessment methodologies that they can apply to biomass and bioenergy technologies. Discusses the economic, environmental, social, and technical aspects of sustainability and their application to the whole bioeconomy value chain Presents the fundamentals and practice of the methods and tools for sustainability assessment, sustainable design, and management of biomass-based systems Explores circular economy concepts and strategies for designing circular systems that include biomass-based production Includes global real-life examples that illustrate each topic covered in the book

Modeling and Optimization of Quality Variability for Decision Support Systems in Biofuel Production

Modeling and Optimization of Quality Variability for Decision Support Systems in Biofuel Production Book
Author : Mario Aboytes-Ojeda
Publisher : Unknown
Release : 2018
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Biofuels are a promising alternative to fossil fuel depletion, due to their sustainable production from living or recently living organic matter (id est, biomass). Biofuel production offers benefits that are not present in non-sustainable resources, like the reduction of air pollution. According to government agencies, biofuel production is expected to increase in the U.S. within the next few years because of government initiatives. In order to become a feasible alternative to satisfy market demand, biofuels require strategic improvements in areas such as supply chain management to deal with the variability within the biomass. Advanced analysis tools might be utilized to integrate biomass physical and chemical properties into the decision processes. This chapter introduces a principal component analysis (PCA) to determine significant factors that affect the operations within the supply chain and, later on, incorporates those factors in an optimization model for the decision analysis. The results show that incorporating quality-related properties has a significant impact in the solution of the optimization program.

Optimization Models for Cost Efficient and Environmentally Friendly Supply Chain Management

Optimization Models for Cost Efficient and Environmentally Friendly Supply Chain Management Book
Author : Gökçe Palak
Publisher : Unknown
Release : 2013
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

This dissertation aims to provide models which will help companies make sustainable logistics management and transportation decisions. These models are extensions of the economic lot sizing model with the availability of multiple replenishment modes. The objective of the models is to minimize total replenishment costs and emissions. The study provides applications of these models on contemporary supply chain problems. Initially,the impact of carbon regulatory mechanisms on the replenishment decisions are analyzed for a biomass supply chain under fixed charge replenishment costs. Then, models are extended to consider multiple-setups replenishment costs for age dependent perishable products. For a cost minimization objective, solution algorithms are proposed to solve cases where one, two or multiple replenishment modes are available. Finally, using a bi-objective model, tradeoffs in costs and emissions are analyzed in a perishable product supply chain.

Rural Development Abstracts

Rural Development Abstracts Book
Author : Anonim
Publisher : Unknown
Release : 2011
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Rural Development Abstracts book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Techno Economic Optimization and Environmental Impact Analysis for a Mixed Mode Upstream and Midstream Forest Biomass to Bio Products Supply Chain

Techno Economic Optimization and Environmental Impact Analysis for a Mixed Mode Upstream and Midstream Forest Biomass to Bio Products Supply Chain Book
Author : Amin Mirkouei
Publisher : Unknown
Release : 2016
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Growing awareness and concern within society over the use of and reliance on fossil fuels has stimulated research efforts in identifying, developing, and selecting alternative energy sources and energy technologies. Bioenergy represents a promising replacement for conventional energy, due to reduced environmental impacts and broad applicability. Sustainable energy challenges, however, require innovative manufacturing technologies and practices to mitigate energy and material consumption. This research aims to facilitate sustainable production of bioenergy from forest biomass and to promote deployment of novel processing equipment such as transportable biorefineries. The study integrates knowledge from the renewable energy production and supply chain management disciplines to evaluate economic and environmental targets of bioenergy production with the use of the multi-criteria decision making approach. The presented approach herein includes qualitative and quantitative methods to address the existing challenges and gaps in the bioenergy manufacturing system. The qualitative method employs decision tree analysis to classify the potential biomass harvesting sites, considering biomass quality and availability. The quantitative method proposes mathematical models to optimize the upstream and midstream biomass-tobioenergy supply chain cost, using mixed bio-refinery modes (transportable and fixed) and transportation pathways (traditional and new). The supply chain environmental impacts are assessed by considering the carbon footprint of the harvesting, collection, size reduction, transportation activities, and bio-refinery processing. While transportable bio-refineries are shown to reduce biomass-to-bioenergy supply chain costs, production and deployment of transportable bio-refineries are limited due to operational challenges associated with undeveloped mixed-mode bioenergy supply chains, as well as supply uncertainty. A case study for northwest Oregon, USA is undertaken using actual data to verify the proposed approach.

WOODY BIOMASS TRANSPORTATION AND LOGISTICS MODELING STUDIES FOR THE GREAT LAKES REGION

WOODY BIOMASS TRANSPORTATION AND LOGISTICS   MODELING STUDIES FOR THE GREAT LAKES REGION Book
Author : Anonim
Publisher : Unknown
Release : 2018
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Abstract : Bioenergy has received increasing attention as potential replacement for fossil fuels in energy production. This is to a great extend due to the expected environmental benefits from such replacement. However, the share of the US energy generated by biomass has remained stagnant over the past decade, as the implementation of bioenergy can increase only if it can be justified from economic, environmental and social perspective. One of the critical aspects required for increase is cost-effective transportation. Transportation is critical to bioenergy production, as the intrinsic characteristics of biomass cause transportation to account for a high proportion of costs in the overall biomass supply chain. This also makes transportation one of the most important criteria in terms of optimized supply chain. This dissertation concentrates on investigation of multimodal alternatives for woody biomass transportation and logistics. More specifically, the research developed and three MILP transportation optimization models that use region specific data in the Great Lakes States to evaluate alternative logistics systems for dedicated and co-firing bioenergy plants. The research first reviewed peer-reviewed articles focusing on the biomass transportation and logistics to enhance the understanding of the current state of research on this topic (Chapter 1). Based on the knowledge obtained from past literature and the acquisition of region specific data set, analytical models were developed and tested in case studies. In addition, sensitivity analysis was used to investigate the importance of individual parameters on the modeling outcomes. The first analytical model was developed to investigate the relationship between sustainable transportation cost and location of a dedicated bioenergy plant. This sustainability is incorporated in the analysis by combining all three main sustainability components: economic, environmental, and social factors (Chapter 2). The next two models concentrated on transportation logistics as part of decision-making for biomass co-firing on existing coal power plants. To take advantage of co-firing, a plant must pay attention to the sourcing and blending strategy of feedstocks and combine them as efficiently as possible. An analytical model was developed to determine the preferred logistics system for biomass co-firing that compares the conventional woody biomass logistics system with the option for advanced woody biomass logistics system that includes torrefaction process to upgrade the feedstock (Chapter 3). Finally, an analytical model was developed to determine optimal co-firing ratio that minimized total logistics costs. The approach also integrated the advanced logistics system and the optimized co-firing ratio to investigate the impact of potential government tax credits on the strategy (Chapter 4). To test the models in Chapters 3 and 4, they were both applied to case studies of 26 actual coal power plants in the Great Lakes States. The studies covered in this dissertation revealed that 1) multimodal transportation is essential when establishing larger biomass plants or increasing the scale of co-firing. On the other hand, the larger plants help to reduce the transportation and logistics costs, and as such support the increase in the use of biomass. 2) Local conditions have great impact on biomass transportation logistics, as the performance of woody biomass logistics system highly depends on accessibility of local transportation network, such as loading/unloading sites along rail lines. 3) When investigating logistics cost differences, plant capacity, biomass availability nearby, and average distance from biomass collecting sites are parameters with consistently high impact on the preferred solution, although the impact of a certain parameter may be opposite on a specific model or case study. 4) There would be potential benefits from woody biomass in the Great Lakes States, but inclusion of transportation and logistics system analysis that consider various types of supply networks and torrefaction process are essential to select the most suitable system.