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Advanced Technologies for Gas Turbines - Aeronautics And Space Engineering Board - Bog - National Academies Press - Plusbog.dk

Advanced Technologies for Gas Turbines - Aeronautics And Space Engineering Board - Bog - National Academies Press - Plusbog.dk

Leadership in gas turbine technologies is of continuing importance as the value of gas turbine production is projected to grow substantially by 2030 and beyond. Power generation, aviation, and the oil and gas industries rely on advanced technologies for gas turbines. Market trends including world demographics, energy security and resilience, decarbonization, and customer profiles are rapidly changing and influencing the future of these industries and gas turbine technologies. Technology trends that define the technological environment in which gas turbine research and development will take place are also changing - including inexpensive, large scale computational capabilities, highly autonomous systems, additive manufacturing, and cybersecurity. It is important to evaluate how these changes influence the gas turbine industry and how to manage these changes moving forward. Advanced Technologies for Gas Turbines identifies high-priority opportunities for improving and creating advanced technologies that can be introduced into the design and manufacture of gas turbines to enhance their performance. The goals of this report are to assess the 2030 gas turbine global landscape via analysis of global leadership, market trends, and technology trends that impact gas turbine applications, develop a prioritization process, define high-priority research goals, identify high-priority research areas and topics to achieve the specified goals, and direct future research. Findings and recommendations from this report are important in guiding research within the gas turbine industry and advancing electrical power generation, commercial and military aviation, and oil and gas production. Table of ContentsFront MatterSummary1 Background2 Aggressive Goals for Gas Turbine Development3 High-Priority Research Areas and Topics4 Additional ConsiderationsAppendixesAppendix A: Statement of TaskAppendix B: Compendium of High-Priority Goals, Research Areas, Research Topics, and Their Summary StatementsAppendix C: Committee Member Biographical InformationAppendix D: Acronyms

DKK 448.00
1

Verifying Greenhouse Gas Emissions - Committee On Methods For Estimating Greenhouse Gas Emissions - Bog - National Academies Press - Plusbog.dk

Verifying Greenhouse Gas Emissions - Committee On Methods For Estimating Greenhouse Gas Emissions - Bog - National Academies Press - Plusbog.dk

The world's nations are moving toward agreements that will bind us together in an effort to limit future greenhouse gas emissions. With such agreements will come the need for all nations to make accurate estimates of greenhouse gas emissions and to monitor changes over time. In this context, the present book focuses on the greenhouse gases that result from human activities, have long lifetimes in the atmosphere and thus will change global climate for decades to millennia or more, and are currently included in international agreements. The book devotes considerably more space to CO2 than to the other gases because CO2 is the largest single contributor to global climate change and is thus the focus of many mitigation efforts. Only data in the public domain were considered because public access and transparency are necessary to build trust in a climate treaty. The book concludes that each country could estimate fossil-fuel CO2 emissions accurately enough to support monitoring of a climate treaty. However, current methods are not sufficiently accurate to check these self-reported estimates against independent data or to estimate other greenhouse gas emissions. Strategic investments would, within 5 years, improve reporting of emissions by countries and yield a useful capability for independent verification of greenhouse gas emissions reported by countries. Table of ContentsFront MatterSummary1 Introduction2 National Inventories of Greenhouse Gas Emissions3 Measuring Fluxes from Land-Use Sources and Sinks4 Emissions Estimated from Atmospheric and Oceanic MeasurementsReferencesAppendixesAppendix A: UNFCCC Inventories of Industrial Processes and WasteAppendix B: Estimates of Signals Created in the Atmosphere by EmissionsAppendix C: Current Sources of Atmospheric and Oceanic Greenhouse Gas DataAppendix D: Technologies for Measuring Emissions by Large Local SourcesAppendix E: Biographical Sketches of Committee MembersAppendix F: Acronyms and Abbreviations

DKK 412.00
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Risks and Risk Governance in Shale Gas Development - National Research Council - Bog - National Academies Press - Plusbog.dk

Risks and Risk Governance in Shale Gas Development - National Research Council - Bog - National Academies Press - Plusbog.dk

Natural gas in deep shale formations, which can be developed by hydraulic fracturing and associated technologies (often collectively referred to as "fracking") is dramatically increasing production of natural gas in the United States, where significant gas deposits exist in formations that underlie many states. Major deposits of shale gas exist in many other countries as well. Proponents of shale gas development point to several kinds of benefits, for instance, to local economies and to national "energy independence". Shale gas development has also brought increasing expression of concerns about risks, including to human health, environmental quality, non-energy economic activities in shale regions, and community cohesion. Some of these potential risks are beginning to receive careful evaluation; others are not. Although the risks have not yet been fully characterized or all of them carefully analyzed, governments at all levels are making policy decisions, some of them hard to reverse, about shale gas development and/or how to manage the risks. Risks and Risk Governance in Shale Gas Development is the summary of two workshops convened in May and August 2013 by the National Research Council's Board on Environmental Change and Society to consider and assess claims about the levels and types of risk posed by shale gas development and about the adequacy of existing governance procedures. Participants from engineering, natural, and social scientific communities examined the range of risks and of social and decision-making issues in risk characterization and governance related to gas shale development. Central themes included risk governance in the context of (a) risks that emerge as shale gas development expands, and (b) incomplete or declining regulatory capacity in an era of budgetary stringency. This report summarizes the presentations on risk issues raised in the first workshop, the risk management and governance concepts presented at the second workshop, and the discussions at both workshops. Table of ContentsFront MatterIntroductionWorkshop 1: Risks of Unconventional Shale Gas DevelopmentWorkshop 2: Governance of Risks of Shale Gas DevelopmentReferences

DKK 266.00
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Land Use Planning and Oil and Gas Leasing on Onshore Federal Lands - National Research Council - Bog - National Academies Press - Plusbog.dk

Greenhouse Gas Emissions Information for Decision Making - Committee On Development Of A Framework For Evaluating Global Greenhouse Gas Emissions

Greenhouse Gas Emissions Information for Decision Making - Committee On Development Of A Framework For Evaluating Global Greenhouse Gas Emissions

Climate change, driven by increases in human-produced greenhouse gases and particles (collectively referred to as GHGs), is the most serious environmental issue facing society. The need to reduce GHGs has become urgent as heat waves, heavy rain events, and other impacts of climate change have become more frequent and severe. Since the Paris Agreement was adopted in 2015, more than 136 countries, accounting for about 80% of total global GHG emissions, have committed to achieving net-zero emissions by 2050. A growing number of cities, regional governments, and industries have also made pledges to reduce emissions. Providing decision makers with useful, accurate, and trusted GHG emissions information is a crucial part of this effort. This report examines existing and emerging approaches used to generate and evaluate GHG emissions information at global to local scales. The report develops a framework for evaluating GHG emissions information to support and guide policy makers about its use in decision making. The framework identifies six criteria or pillars that can be used to evaluate and improve GHG emissions information: usability and timeliness, information transparency, evaluation and validation, completeness, inclusivity, and communication. The report recommends creating a coordinated repository or clearinghouse to operationalize the six pillars, for example, by providing timely, transparent, traceable information; standardized data formats; and governance mechanisms that are coordinated, trusted, and inclusive of the global community. Table of ContentsFront MatterSummary1 Introduction2 Current Approaches for Quantifying Anthropogenic Greenhouse Gas Emissions3 Structural and Technical Limitations of the Current Greenhouse Gas Emissions Information Landscape4 Framework for Evaluating Greenhouse Gas Emissions Information5 RecommendationsReferencesAppendix A: Acronyms, Initialisms, and GlossaryAppendix B: Atmospheric Observations: Methods and ExamplesAppendix C: Contributors of Input to the StudyAppendix D: Biographical Sketches of Committee MembersAppendix E: Disclosure of Unavoidable Conflicts of Interest

DKK 247.00
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Bolting Reliability for Offshore Oil and Natural Gas Operations - National Materials And Manufacturing Board - Bog - National Academies Press -

Best Available and Safest Technologies for Offshore Oil and Gas Operations - National Research Council - Bog - National Academies Press - Plusbog.dk

Best Available and Safest Technologies for Offshore Oil and Gas Operations - National Research Council - Bog - National Academies Press - Plusbog.dk

Best Available and Safest Technologies for Offshore Oil and Gas Operations: Options for Implementation explores a range of options for improving the implementation of the U.S. Department of the Interior's congressional mandate to require the use of best available and safety technologies in offshore oil and gas operations. In the Outer Continental Shelf Lands Act, Congress directs the Secretary of the Interior to regulate oil and gas operations in federal waters. The act mandates that the Secretary "shall require, on all new drilling and production operations and, wherever practicable, on existing operations, the use of the best available and safest technologies which the Secretary determines to be economically feasible, wherever failure of equipment would have a significant effect on safety, health, or the environment, except where the Secretary determines that the incremental benefits are clearly insufficient to justify the incremental costs of utilizing such technologies."This report, which was requested by Department of the Interior's Bureau of Safety and Environmental Enforcement (BSEE), also reviews options and issues that BSEE is already considering to improve implementation of the best available and safest technologies requirement. Table of ContentsFront MatterBEST AVAILABLE AND SAFEST TECHNOLOGIES FOR OFFSHORE OIL AND GAS OPERATIONS: OPTIONS FOR IMPLEMENTATIONSummary1 Introduction2 Processes for Identifying Technologies3 Processes for Evaluating and Developing Technologies4 Implementation MechanismsReferencesAppendix A: Statement of TaskAppendix B: Lessons from Other Organizations for Best Available and Safest Technologies ImplementationStudy Committee Biographical Information

DKK 214.00
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Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles - Board On Energy And Environmental Systems - Bog -

Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles - Board On Energy And Environmental Systems - Bog -

Medium- and heavy-duty trucks, motor coaches, and transit buses - collectively, "medium- and heavy-duty vehicles", or MHDVs - are used in every sector of the economy. The fuel consumption and greenhouse gas emissions of MHDVs have become a focus of legislative and regulatory action in the past few years. Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two is a follow-on to the National Research Council's 2010 report, Technologies and Approaches to Reducing the Fuel Consumption of Medium-and Heavy-Duty Vehicles. That report provided a series of findings and recommendations on the development of regulations for reducing fuel consumption of MHDVs. This report comprises the first periodic, five-year follow-on to the 2010 report. Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two reviews NHTSA fuel consumption regulations and considers the technological, market and regulatory factors that may be of relevance to a revised and updated regulatory regime taking effect for model years 2019-2022. The report analyzes and provides options for improvements to the certification and compliance procedures for medium- and heavy-duty vehicles; reviews an updated analysis of the makeup and characterization of the medium- and heavy-duty truck fleet; examines the barriers to and the potential applications of natural gas in class 2b through class 8 vehicles; and addresses uncertainties and performs sensitivity analyses for the fuel consumption and cost/benefit estimates.

DKK 292.00
1

Advancing Understanding of Offshore Oil and Gas Systemic Risk in the U.S. Gulf of Mexico - Gulf Research Program - Bog - National Academies Press -

Reducing Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two - Board On Energy And Environmental Systems - Bog

Reducing Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two - Board On Energy And Environmental Systems - Bog

Medium- and heavy-duty trucks, motor coaches, and transit buses - collectively, "medium- and heavy-duty vehicles", or MHDVs - are used in every sector of the economy. The fuel consumption and greenhouse gas emissions of MHDVs have become a focus of legislative and regulatory action in the past few years. This study is a follow-on to the National Research Council's 2010 report, Technologies and Approaches to Reducing the Fuel Consumption of Medium-and Heavy-Duty Vehicles. That report provided a series of findings and recommendations on the development of regulations for reducing fuel consumption of MHDVs. On September 15, 2011, NHTSA and EPA finalized joint Phase I rules to establish a comprehensive Heavy-Duty National Program to reduce greenhouse gas emissions and fuel consumption for on-road medium- and heavy-duty vehicles. As NHTSA and EPA began working on a second round of standards, the National Academies issued another report, Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two: First Report, providing recommendations for the Phase II standards. This third and final report focuses on a possible third phase of regulations to be promulgated by these agencies in the next decade. Table of ContentsFront MatterSummary1 Introduction2 Setting the Stage: Regulatory Horizons, Challenges, and Influences3 Certification, Compliance, and Enforcement4 Powertrain Technologies5 Technologies for Reducing the Power Demand of MHDVs6 Projected Benefits of Technologies on Fuel Consumption7 Hybrid and Electric Powertrain Technologies8 Battery Technology for Medium- and Heavy-Duty Hybrid and Electric Vehicles9 Freight Operational Efficiency10 Intelligent Transportation Systems and Automation11 Manufacturing Considerations12 Costs and Benefits13 Alternative and Complementary Regulatory ApproachesAppendix A: Committee BiographiesAppendix B: Disclosure of Conflicts of InterestAppendix C: Committee ActivitiesAppendix D: Summary of Analysis of Engine and Vehicle CombinationsAppendix E: Description of Drive Cycles Used for ComplianceAppendix F: Summary of Committee's First Report: Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two: First ReportAppendix G: Acronyms and Abbreviations

DKK 708.00
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Greenhouse Gas Emissions from Wildland Fires - Polar Research Board - Bog - National Academies Press - Plusbog.dk

Greenhouse Gas Emissions from Wildland Fires - Polar Research Board - Bog - National Academies Press - Plusbog.dk

Climate change is fundamentally changing ecosystems and their fire conditions, and the 2023 fire season highlighted the urgency of developing and implementing solutions to address wildland fires. Wildland fires transfer carbon between the land and the atmosphere through emissions of greenhouse gases (GHGs), along with other gasses and particles. Though fires can be a natural part of healthy, evolving ecosystems, large, uncontrolled wildland fires can have devastating consequences to human health, communities, and biodiversity. Human-driven changes in wildland fire regimes have the potential to increase GHG emissions at a scale that could inhibit global efforts to achieve net-zero GHG emissions in the coming decades. The National Academies of Sciences, Engineering, and Medicine convened a workshop on September 13-15, 2023, to identify opportunities to improve measurements and model projections of GHG emissions from wildland fires and discuss management practices that could be incorporated into current and future action plans. Participants emphasized the importance of learning from historic and current Indigenous fire management practices and centering Indigenous voices and leadership across all stages of fire management. Different global ecosystems - particularly temperate, boreal, and tropical biomes - have been impacted by climate and land use changes where historical fire regimes and the carbon balance have been disrupted. However, discussions highlighted the diverse set of available regionally differentiated and ecosystem-appropriate mitigation strategies. With improved understanding of fires and their GHG emissions, better information for mitigation and management, and incorporation of wildfire GHG emissions into national accounting mechanisms, practitioners, communities, and decision makers will be better equipped to prepare, adapt, and respond to future wildland fires. Table of ContentsFront MatterOverviewIntroductionBiomes Vulnerable to Wildland Fires and Implications for Greenhouse Gas EmissionsObserving and Modeling Wildland Fires and Their Greenhouse Gas Emissions: Opportunities and ChallengesFuture Management to Support Net-Zero TargetsClosing ThoughtsReferencesAppendix A: Statement of TaskAppendix B: Biographical Sketches of Committee MembersAppendix C: Workshop Agenda

DKK 169.00
1

High-Performance Bolting Technology for Offshore Oil and Natural Gas Operations - National Materials And Manufacturing Board - Bog - National

High-Performance Bolting Technology for Offshore Oil and Natural Gas Operations - National Materials And Manufacturing Board - Bog - National

Commercially significant amounts of crude oil and natural gas lie under the continental shelf of the United States. Advances in locating deposits, and improvements in drilling and recovery technology, have made it technically and economically feasible to extract these resources under harsh conditions. But extracting these offshore petroleum resources involves the possibility, however remote, of oil spills, with resulting damage to the ocean and the coastline ecosystems and risks to life and limb of those performing the extraction. The environmental consequences of an oil spill can be more severe underwater than on land because sea currents can quickly disperse the oil over a large area and, thus, cleanup can be problematic. Bolted connections are an integral feature of deep-water well operations. High-Performance Bolting Technology for Offshore Oil and Natural Gas Operations summarizes strategies for improving the reliability of fasteners used in offshore oil exploration equipment, as well as best practices from other industrial sectors. It focuses on critical bolting—bolts, studs, nuts, and fasteners used on critical connections. Table of ContentsFront MatterSummary1 The Challenges of Subsea Fastener Reliability Improvement2 Assessment of Critical Subsea Bolting System Design Elements3 Options for Improving Bolting Reliability4 Safety Culture and Human Systems Integration5 Innovation Opportunities6 Summary of RecommendationsAppendixesAppendix A: Statement of TaskAppendix B: Mapping of Statement of Task to Report ChaptersAppendix C: AcronymsAppendix D: Brief History of Subsea Oil ExplorationAppendix E: Selected Subsea Bolt FailuresAppendix F: Recent Industry and Regulator Response to Critical Subsea Bolt FailuresAppendix G: Subsea Environmental Factors for Fastener DesignAppendix H: Bolting Regulations and StandardsAppendix I: Drilling Riser DesignAppendix J: Bolting PreloadAppendix K: Threaded Fastener Failure ModesAppendix L: Committee BiographiesAppendix M: Disclosure of Conflict of Interest

DKK 396.00
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The Changing Landscape of Hydrocarbon Feedstocks for Chemical Production - Board On Chemical Sciences And Technology - Bog - National Academies Press

The Changing Landscape of Hydrocarbon Feedstocks for Chemical Production - Board On Chemical Sciences And Technology - Bog - National Academies Press

A decade ago, the U.S. chemical industry was in decline. Of the more than 40 chemical manufacturing plants being built worldwide in the mid-2000s with more than $1 billion in capitalization, none were under construction in the United States. Today, as a result of abundant domestic supplies of affordable natural gas and natural gas liquids resulting from the dramatic rise in shale gas production, the U.S. chemical industry has gone from the world's highest-cost producer in 2005 to among the lowest-cost producers today. The low cost and increased supply of natural gas and natural gas liquids provides an opportunity to discover and develop new catalysts and processes to enable the direct conversion of natural gas and natural gas liquids into value-added chemicals with a lower carbon footprint. The economic implications of developing advanced technologies to utilize and process natural gas and natural gas liquids for chemical production could be significant, as commodity, intermediate, and fine chemicals represent a higher-economic-value use of shale gas compared with its use as a fuel. To better understand the opportunities for catalysis research in an era of shifting feedstocks for chemical production and to identify the gaps in the current research portfolio, the National Academies of Sciences, Engineering, and Medicine conducted an interactive, multidisciplinary workshop in March 2016. The goal of this workshop was to identify advances in catalysis that can enable the United States to fully realize the potential of the shale gas revolution for the U.S. chemical industry and, as a result, to help target the efforts of U.S. researchers and funding agencies on those areas of science and technology development that are most critical to achieving these advances. This publication summarizes the presentations and discussions from the workshop. Table of ContentsFront Matter1 Introduction and Overview2 The Shale Gas Boom and Its Impact on the American Chemical Industry3 Catalytic Conversion of Methane4 Catalytic Conversion of Light Alkanes5 Environmental Impacts6 Summary of Key PointsReferencesAppendix A: Workshop AgendaAppendix B: Biographic Sketches of Workshop Speakers and Organizing Committee MembersAppendix C: Participant List

DKK 318.00
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Assessing Economic Impacts of Greenhouse Gas Mitigation - Board On Energy And Environmental Systems - Bog - National Academies Press - Plusbog.dk

Assessing Economic Impacts of Greenhouse Gas Mitigation - Board On Energy And Environmental Systems - Bog - National Academies Press - Plusbog.dk

Many economic models exist to estimate the cost and effectiveness of different policies for reducing greenhouse gas (GHG) emissions. Some approaches incorporate rich technological detail, others emphasize the aggregate behavior of the economy and energy system, and some focus on impacts for specific sectors. Understandably, different approaches may be better positioned to provide particular types of information and may yield differing results, at times rendering decisions on future climate change emissions and research and development (R&D) policy difficult. Reliable estimates of the costs and benefits to the U.S. economy for various emissions reduction and adaptation strategies are critical to federal climate change R&D portfolio planning and investment decisions. At the request of the U.S. Department of Energy (DOE), the National Academies organized a workshop to consider these issues. The workshop, summarized in this volume, comprised three dimensions: policy, analysis, and economics. Discussions along these dimensions were meant to lead to constructive identification of gaps and opportunities. The workshop focused on (1) policymakers' informational needs; (2) models and other analytic approaches to meet these needs; (3) important economic considerations, including equity and discounting; and (4) opportunities to enhance analytical capabilities and better inform policy. Table of ContentsFront Matter1 Introduction2 Policymakers' Informational Needs3 Models and Analytical Approaches4 Economic Considerations5 Enhancing Analytical CapabilitiesSelect BibliographyA Workshop AgendaB Speaker and Panelist Biographical Information

DKK 208.00
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Modeling the Economics of Greenhouse Gas Mitigation - National Research Council - Bog - National Academies Press - Plusbog.dk

Modeling the Economics of Greenhouse Gas Mitigation - National Research Council - Bog - National Academies Press - Plusbog.dk

Models are fundamental for estimating the possible costs and effectiveness of different policies for reducing greenhouse gas (GHG) emissions. There is a wide array of models to perform such analysis, differing in the level of technological detail, treatment of technological progress, spatial and sector details, and representation of the interaction of the energy sector to the overall economy and environment. These differences impact model results, including cost estimates. More fundamentally, these models differ as to how they represent fundamental processes that have a large impact on policy analysis—such as how different models represent technological learning and cost reductions that come through increasing production volumes, or how different models represent baseline conditions. Reliable estimates of the costs and potential impacts on the United States economy of various emissions reduction and other mitigation strategies are critical to the development of the federal climate change research and development portfolio. At the request of the U.S. Department of Energy (DOE), the National Academies organized a workshop, summarized in this volume, to consider some of these types of modeling issues. Table of ContentsFront Matter1 Introduction2 Uses and Abuses of Marginal Abatement Supply Curves3 Uses and Abuses of Learning, Experience, and Knowledge Curves4 Offsets - What's Assumed, What Is Known/Not Known, and What Difference They Make5 Story Lines, Scenarios, and the Limits of Long-Term Socio-Techno-Economic Forecasting6 Reflections on the WorkshopReferencesAppendixesAppendix A: Workshop Announcement and AgendaAppendix B: Biographical Sketches of Planning Committee Members, Speakers, and DiscussantsAppendix C: Papers Submitted by Workshop SpeakersParadigms of Energy Efficiency's Cost and Their Policy Implications: Déjà Vu All Over Again--Mark JaccardEnergy Efficiency Cost Curves: Empirical Insights for Energy-Climate Modeling--Jayant Sathaye and Amol PhadkeThe Perils of the Learning Model For Modeling Endogenous Technological Change--William D. NordhausUncertainties in Technology Experience Curves for Energy-Economic Models--Sonia Yeh and Edward RubinRole of Offsets in Global and Domestic Climate Policy--Raymond J. KoppCarbon Offsets in Forest and Land Use--Brent SohngenMeasurement and Monitoring of Forests in Climate Policy Design--Molly K. MacauleyInternational Offsets Usage in Proposed U.S. Climate Change Legislation--Allen A. FawcettThe Politics and Economics of International Carbon Offsets--David G. VictorDeveloping Narratives for Next-Generation Scenarios Climate Change Research and Assessment--Richard Moss

DKK 305.00
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Development of Unconventional Hydrocarbon Resources in the Appalachian Basin - Water Science And Technology Board - Bog - National Academies Press -

Development of Unconventional Hydrocarbon Resources in the Appalachian Basin - Water Science And Technology Board - Bog - National Academies Press -

Development of Unconventional Hydrocarbon Resources in the Appalachian Basin is the summary of a workshop convened by the National Research Council to examine the geology and unconventional hydrocarbon resources of the Appalachian Basin; technical methods for producing unconventional hydrocarbons and disposing of wastewater; the potential effects of production on the environment; relevant policies and regulations; and priorities for future scientific and engineering research. Workshop presentations by experts in the fields of geosciences and engineering examined the numerous geoscientific aspects of hydrocarbon development from unconventional resources, including natural gas, oil, and natural gas liquids. Shale gas is the fastest growing source of U.S. natural gas. Most of the oil and gas produced in the United States comes from conventional reservoirs in which hydrocarbons have accumulated in discrete structural or stratigraphic traps below relatively impermeable rock and above a well-defined hydrocarbon-water interface. However, a growing fraction comes from unconventional reservoirs - geographically extensive accumulations of hydrocarbons held in low-permeability rock with diffuse boundaries and no obvious traps or hydrocarbon-water contacts. In the Appalachian Basin, shale gas development is proceeding in Ohio, Pennsylvania, and West Virginia, while New York and Maryland have commissioned studies to assess potential impacts. Development of Unconventional Hydrocarbon Resources in the Appalachian Basin focuses on the main hydrocarbon-bearing geologic formations in and around the Appalachian Basin, including the Marcellus, Utica, and Devonian shales, and their estimated resources, current production levels, and projected output. This report examines the potential effects on surface water and groundwater quality and quantity; potential effects on landscapes, including soil and living organisms, and other environmental systems; and technical and engineering processes for exploration and production. Table of ContentsFront Matter1 Introduction2 Geology, Resources, and Production3 Water and Regulations4 Ecosystems, Air, and Climate5 Final ThoughtsBibliographyAppendix A: Letter from Senator John D. Rockefeller IVAppendix B: Workshop AgendaAppendix C: Workshop ParticipantsAppendix D: Working Group ReportsAppendix E: Biographical Sketches of Planning Committee MembersAppendix F: Acronyms and Abbreviations

DKK 247.00
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Onshore Unconventional Hydrocarbon Development - Roundtable On Unconventional Hydrocarbon Development - Bog - National Academies Press - Plusbog.dk

Onshore Unconventional Hydrocarbon Development - Roundtable On Unconventional Hydrocarbon Development - Bog - National Academies Press - Plusbog.dk

Oil and gas well completion and stimulation technologies to develop unconventional hydrocarbon resources in the United States have evolved over the past several decades, particularly in relation to the development of shale oil and shale gas. Shale oil and shale gas resources and the technology associated with their production are often termed "unconventional" because the oil and gas trapped inside the shale or other low-permeability rock formation cannot be extracted using conventional technologies. Since about 2005, the application of these technologies to fields in the U.S. have helped produce natural gas and oil in volumes that allowed the country to reduce its crude oil imports by more than 50% and to become a net natural gas exporter. The regional and national economic and energy advances gained through production and use of these resources have been accompanied, however, by rapid expansion of the infrastructure associated with the development of these fields and public concern over the impacts to surface- and groundwater, air, land, and communities where the resources are extracted. The intent of the first day of the workshop of the National Academies of Sciences, Engineering, and Medicine's Roundtable on Unconventional Hydrocarbon Development was to discuss onshore unconventional hydrocarbon development in the context of potential environmental impacts and the ways in which the risks of these kinds of impacts can be managed. Specifically, the workshop sought to examine the lifecycle development of these fields, including decommissioning and reclamation of wells and related surface and pipeline infrastructure, and the approaches from industry practice, scientific research, and regulation that could help to ensure management of the operations in ways that minimize impacts to the environment throughout their active lifetimes and after operations have ceased. This publication summarizes the presentations and discussions from the workshop. Table of ContentsFront Matter1 Introduction2 Understanding Legacy Issues and Managing Risk3 Infrastructure Inventories, Environmental Restoration, and Management4 Observations, Monitoring, and Technology Evolution and Revolution for Legacy Issues5 Intersection of Technology and Regulation: Smoothing the Interface Through Time6 Plenary Remarks and DiscussionReferencesAppendix A: Workshop AgendaAppendix B: Biographies of the Workshop Planning CommitteeAppendix C: Biographies of the Workshop Moderators and PresentersAppendix D: Members of the Roundtable on Unconventional Hydrocarbon DevelopmentAppendix E: Workshop Participants

DKK 396.00
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Chemical and Biological Terrorism - Committee On R&d Needs For Improving Civilian Medical Response To Chemical And Biological Terrorism Incidents -

Frontiers of Engineering - National Academy Of Engineering - Bog - National Academies Press - Plusbog.dk

Frontiers of Engineering - National Academy Of Engineering - Bog - National Academies Press - Plusbog.dk

This volume presents papers on the topics covered at the National Academy of Engineering's 2014 US Frontiers of Engineering Symposium. Every year the symposium brings together 100 outstanding young leaders in engineering to share their cutting-edge research and innovations in selected areas. The 2014 symposium was held September 11-13 at the National Academies Beckman Center in Irvine California. The topics covered at the 2014 symposium were: co-robotics, battery materials, technologies for the heart, and shale gas and oil. The intent of this book is to convey the excitement of this unique meeting and to highlight innovative developments in engineering research and technical work. Table of ContentsFront MatterCO-ROBOTICSCo-Robotics--Brian Gerkey and Carmel MajidiProgress in Self-Driving Vehicles--Chris UrmsonSafe, Cheap, and Smart: Collaborative Robots in Manufacturing--Matthew WilliamsonPersonalized Medical Robots--Allison M. Okamura and Tania K. MorimotoBATTERY ANXIETYBattery Anxiety--Jeff Sakamoto and Daniel SteingartElectrochemical Prozac: Relieving Battery Anxiety through Life and Safety Research--Alvaro MasiasChallenges in Batteries for Electric Vehicles--Sarah Stewart, Jake Christensen, Nalin Chatururvedi, and Aleksandar KojicLithium Ion Batteries and Their Manufacturing Challenges--Claus DanielTECHNOLOGIES FOR THE HEARTTechnologies for the Heart--Karen Christman and Ashley PetersonThe History of Heart Valves: An Industry Perspective--Erin M. SpinnerEngineering Heart Valve Treatment Strategies for Tomorrow--W. David MerrymanBiomaterials for Treating Myocardial Infarctions--Jason A. Burdick and Shauna M. DorseyRegulatory Perspectives on Technologies for the Heart--Tina M. MorrisonSHALE GAS AND OILShale Gas and Oil--Billy B. Bardin and Christopher W. JonesShale Natural Resources--Stephen IngramMicrobial Ecology of Hydraulic Fracturing--Kelvin B. GregoryThe Shale Gas Revolution: A Methane-to-Organic Chemicals Renaissance?--Eric E. StanglandAPPENDIXESContributorsProgramParticipants

DKK 292.00
1

Flowback and Produced Waters - Roundtable On Unconventional Hydrocarbon Development - Bog - National Academies Press - Plusbog.dk

Flowback and Produced Waters - Roundtable On Unconventional Hydrocarbon Development - Bog - National Academies Press - Plusbog.dk

Produced water—water from underground formations that is brought to the surface during oil and gas production—is the greatest volume byproduct associated with oil and gas production. It is managed by some combination of underground injection, treatment and subsequent use, treatment and discharge, or evaporation, subject to compliance with state and federal regulations. Management of these waters is challenging not only for industry and regulators, but also for landowners and the public because of differences in the quality and quantity of produced water, varying infrastructure needs, costs, and environmental considerations associated with produced water disposal, storage, and transport. Unconventional oil and gas development involves technologies that combine horizontal drilling with the practice of hydraulic fracturing. Hydraulic fracturing is a controlled, high-pressure injection of fluid and proppant into a well to generate fractures in the rock formation containing the oil or gas. After the hydraulic fracture procedure is completed, the injected fluid is allowed to flow back into the well, leaving the proppant in the newly created fractures. As a result, a portion of the injected water returns to the surface and this water is called "flowback water" which initially may mix with the naturally occurring produced water from the formation. The chemistry and volume of water returning to the surface from unconventional oil and gas operations thus changes during the lifetime of the well due to the amount of fluid used in the initial stage of well development, the amount of water naturally occurring in the geologic formation, the original water and rock chemistry, the type of hydrocarbon being produced, and the way in which production is conducted. The volume and composition of flowback and produced waters vary with geography, time, and site-specific factors. A workshop was conducted by the National Academies of Sciences, Engineering, and Medicine to highlight the challenges and opportunities associated in managing produced water from unconventional hydrocarbon development, and particularly in the area of potential beneficial uses for these waters. This publication summarizes the presentations and discussions from the workshop. Table of ContentsFront Matter1 Introduction2 Setting the Stage: Keynote Session3 Regional Similarities and Differences: Environmental and Regulatory Context for Potential Use of Flowback and Produced Water4 Technologies for Managing Flowback and Produced Waters for Potential Use5 Characterization of Flowback and Produced Waters for Potential Use6 Research and Technology Innovation in Context7 Facilitated DiscussionReferencesAppendix A: Workshop AgendaAppendix B: Members of the Roundtable on Unconventional Hydrocarbon DevelopmentAppendix C: Biographies of Workshop Planning CommitteeAppendix D: Biographies of Workshop Moderators and PresentersAppendix E: Workshop ParticipantsAppendix F: Glossary

DKK 422.00
1