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Showing 161 - 180 of 596 results
  • Effects of DemandSide Restrictions on HighDeforestation Palm Oil in Europe on Deforestation and Emissions in Indonesia
    Effects of Demand-Side Restrictions on High-Deforestation Palm Oil in Europe on Deforestation and Emissions in Indonesia
    Busch, Jonah ;
    Amarjargal, Oyut
    2022-01-01 | PDF
    Demand-side restrictions on high-deforestation commodities are expanding as a climate policy, but their impact on reducing tropical deforestation and emissions has yet to be quantified. Here we model the effects of demand-side restrictions on high-deforestation palm oil in Europe on deforestation and emissions in Indonesia. We do so by integrating ...
  • Delayed Deceleration Approach Noise Impact and Modeling Validation
    Delayed Deceleration Approach Noise Impact and Modeling Validation
    Huynh, Jacqueline L ;
    Mahseredjian, Ara
    2022-01-01 | PDF
    A validation methodology and evaluation of delayed deceleration approach performance and noise-impact modeling using noise measurements and radar data are presented. Advanced procedures such as delayed deceleration approaches, where aircraft maintain higher speeds and therefore remain cleanly configured and at lower thrust levels for longer flight ...
  • Oxygen Equipment Use in General Aviation Operations 2021
    Oxygen Equipment: Use in General Aviation Operations (2021)
    United States. Department of Transportation. Federal Aviation Administration. Civil Aerospace Medical Institute. Aerospace Medical Education Division
    2021-12-28 | Aeromedical Safety Brochures | PDF
    Aeromedical Safety Brochures are prepared for general aviation pilots, commercial pilots and physicians. The brochures acquaint the aviation community with the physiological challenges of the aviation environment and relevant safety concerns.
  • A System for Measurement and Analysis of Aircraft Noise Impacts
    A System for Measurement and Analysis of Aircraft Noise Impacts
    Jackson, Donald C ;
    Rindfleisch, Thomas C
    2021-12-01 | PDF
    The Metroplex Overflight Noise Analysis (MONA) project seeks to measure, analyze, and archive the ground noise generated by aircraft overflights and to provide accurate and actionable data for a variety of different purposes. On the one hand, experimental datasets collected and processed by the MONA system can serve as an openly-available database ...
  • Extended Reality for Cabin Safety I A Translational Study of Extended Reality Technology in Training and Research
    Extended Reality for Cabin Safety I: A Translational Study of Extended Reality Technology in Training and Research
    Breeding, Levi L ;
    Weed, David B.
    2021-12-01 | PDF
    A translational study provides an informed approach to solving issues based on scientific research. This study provides background information on extended reality (XR) technology; discusses its use, value, and potential; and provides practical applications to solve certain issues based on the research. The Electronic Emergency Evacuation Aid for Ai ...
  • Towards Fuel Composition and Properties From TwoDimensional Gas Chromatography With Flame Ionization and Vacuum Ultraviolet Spectroscopy
    Towards Fuel Composition and Properties From Two-Dimensional Gas Chromatography With Flame Ionization and Vacuum Ultraviolet Spectroscopy
    Heyne, Joshua ;
    Bell, David C
    2021-12-01 | PDF
    Already low volume (<1mL) test methods facilitate the development of sustainable aviation fuel platforms and higher fidelity computational methods. Here a novel technique with two-dimensional gas chromatography (GCxGC) and Vacuum Ultraviolet (VUV) identification is used to characterize fuel composition and determine properties compared to previous ...
  • Biofuel Discount Rates and Stochastic TechnoEconomic Analysis for a Prospective Pennycress Thlaspi arvense L Sustainable Aviation Fuel Supply Chain
    Biofuel Discount Rates and Stochastic Techno-Economic Analysis for a Prospective Pennycress (Thlaspi arvense L.) Sustainable Aviation Fuel Supply Chain
    Trejo-Pech, Carlos Omar ;
    Larson, James A
    2021-12-01 | PDF
    The international aviation industry has the goal to gradually reduce carbon emissions mainly by using sustainable aviation fuel (SAF). However, currently SAF cannot be produced at competitive prices relative to petroleum-based jet fuel. Pennycress is a crop whose oilseed could be used as a relatively low-cost feedstock to produce SAF, potentially b ...
  • DataDriven Analysis of Departure Procedures for Aviation Noise Mitigation
    Data-Driven Analysis of Departure Procedures for Aviation Noise Mitigation
    Bhanpato, Jirat ;
    Puranik, Tejas G
    2021-12-01 | PDF
    The mitigation of aviation environmental effects is one of the key requirements for sustainable aviation growth. Among various mitigation strategies, Noise Abatement Departure Procedures (NADPs) are a popular and effective measure undertaken by several operators. However, a large variation in departure procedures is observed in real operations. Thi ...
  • Quantitative Policy Analysis for Sustainable Aviation Fuel Production Technologies
    Quantitative Policy Analysis for Sustainable Aviation Fuel Production Technologies
    Wang, Z Juju ;
    Staples, Mark D
    2021-12-01 | PDF
    This paper quantifies the impact of different policy options on the economic viability of sustainable aviation fuel (SAF) production technologies. The pathways considered include isobutanol to jet from corn grain, hydroprocessed esters and fatty acids (HEFA) from inedible fats and oils, HEFA from palm fatty acid distillate, synthesized iso-paraffin ...
  • Economic Analysis of Developing a Sustainable Aviation Fuel Supply Chain Incorporating With Carbon Credits A Case Study of the Memphis International Airport
    Economic Analysis of Developing a Sustainable Aviation Fuel Supply Chain Incorporating With Carbon Credits: A Case Study of the Memphis International Airport
    Sharma, Bijay P ;
    Yu, T Edward
    2021-12-01 | PDF
    Sustainable aviation fuel (SAF) has been considered as a potential means to mitigate greenhouse gas (GHG) emissions from the aviation sector, which is projected to continuously expand. This study examines the impact of developing a SAF sector along with carbon credits on carbon equivalent emissions from aviation using a Stackelberg leader-follower ...
  • Denoising and Fuel Spray Droplet Detection From LightScattered Images Using Deep Learning
    Denoising and Fuel Spray Droplet Detection From Light-Scattered Images Using Deep Learning
    Hasti, Veeraraghava Raju ;
    Shin, Dongyun
    2021-12-01 | PDF
    A deep learning-based method for denoising and detecting the gas turbine engine spray droplets in the light-scattered image (Mie scattering) is proposed for the first time. A modified U-Net architecture is employed in the proposed method to denoise and regenerate the droplets. We have compared and validated the performance of the modified U-Net arc ...
  • Regulatory and Policy Analysis of Production Development and Use of Sustainable Aviation Fuels in the United States
    Regulatory and Policy Analysis of Production, Development and Use of Sustainable Aviation Fuels in the United States
    Korkut, Ekrem ;
    Fowler, Lara B
    2021-11-01 | PDF
    The United States, spurred in part by international developments, is expanding its law and policy to incentivize the use of sustainable aviation fuels. While the U.S. has agreed to participate in the International Civil Aviation Organization’s (ICAO’s) Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA), it has only recently ...
  • Experimental Verification of Principal Losses in a Regulatory Particulate Matter Emissions Sampling System for Aircraft Turbine Engines
    Experimental Verification of Principal Losses in a Regulatory Particulate Matter Emissions Sampling System for Aircraft Turbine Engines
    Kittelson, D. B. ;
    Swanson, J
    2021-11-01 | PDF
    A sampling system for measuring emissions of nonvolatile particulate matter (nvPM) from aircraft gas turbine engines has been developed to replace the use of smoke number and is used for international regulatory purposes. This sampling system can be up to 35m in length. The sampling system length in addition to the volatile particle remover (VPR) a ...
  • Lower Heating Value of Jet Fuel From Hydrocarbon Class Concentration Data and ThermoChemical Reference Data An Uncertainty Quantification
    Lower Heating Value of Jet Fuel From Hydrocarbon Class Concentration Data and Thermo-Chemical Reference Data: An Uncertainty Quantification
    Boehm, Randall C. ;
    Yang, Zhibin
    2021-11-01 | PDF
    A detailed assessment is presented on the calculation and uncertainty of the lower heating value (net heat of combustion) of conventional and sustainable aviation fuels, from hydrocarbon class concentration measurements, reference molecular heats of formation, and the uncertainties of these reference heats of formation. Calculations using this pape ...
  • Construction and Demolition WasteDerived Feedstock Fuel Characterization of a Potential Resource for Sustainable Aviation Fuels Production
    Construction and Demolition Waste-Derived Feedstock: Fuel Characterization of a Potential Resource for Sustainable Aviation Fuels Production
    Bach, Quang-Vu ;
    Fu, Jinxia
    2021-11-01 | PDF
    Detailed characterization of physical and fuel properties of construction and demolition waste (CDW) can support research and commercial efforts to develop sustainable aviation fuels. The current study reports time-series data for bulk density, mineral composition, reactivity, and fuel properties (proximate analysis, ultimate analysis, heating valu ...
  • Optimal N Application Rates on Switchgrass for Producers and a Biorefinery
    Optimal N Application Rates on Switchgrass for Producers and a Biorefinery
    Robertson, Keven Alan ;
    English, Burton C
    2021-11-01 | PDF
    This study analyzes the effects of N fertilizer application rates on profitability of growing switchgrass and using the feedstock in a pyrolysis biorefinery facility to create a source of sustainable aviation fuel (SAF) supply in Tennessee. Switchgrass (Panicum virgatum L.) is a perennial bunchgrass native to North America with traits suitable for ...
  • Estimating the Reduction in Future FleetLevel CO2 Emissions from Sustainable Aviation Fuel
    Estimating the Reduction in Future Fleet-Level CO2 Emissions from Sustainable Aviation Fuel
    Jain, Samarth ;
    Chao, Hsun
    2021-11-01 | PDF
    With rising concerns over commercial aviation’s contribution to global carbon emissions, the aviation industry faces tremendous pressure to adopt advanced solutions for reducing its share of CO<sub>2</sub> emissions. One near-term potential solution to mitigate this global emissions situation is to operate existing aircraft with sustainable aviatio ...
  • LongTerm Aircraft Noise Exposure and Risk of Hypertension in the Nurses Health Studies
    Long-Term Aircraft Noise Exposure and Risk of Hypertension in the Nurses’ Health Studies
    Kim, Chloe S ;
    Grady, Stephanie T.
    2021-10-01 | PDF
    Background: Aircraft noise can affect populations living near airports. Chronic exposure to aircraft noise has been associated with cardiovascular disease, including hypertension. However, previous studies have been limited in their ability to characterize noise exposures over time and to adequately control for confounders. Objectives: The aim of t ...
  • Production of Sustainable Aviation Fuels in Petroleum Refineries Evaluation of New BioRefinery Concepts
    Production of Sustainable Aviation Fuels in Petroleum Refineries: Evaluation of New Bio-Refinery Concepts
    Tanzil, Abid H ;
    Brandt, Kristin
    2021-10-01 | PDF
    The potential for petroleum refineries (PRs) to integrate sustainable aviation fuel (SAF) technologies is manifold, unlike with other existing industrial infrastructures that lack such technical similarities. A midsize PR with a crude oil capacity of 120,000 barrels per day was analyzed in this study to determine the feasibility of integrating five ...
  • Dataset for TechnoEconomic Analysis of Catalytic Hydrothermolysis Pathway for Jet Fuel Production
    Dataset for Techno-Economic Analysis of Catalytic Hydrothermolysis Pathway for Jet Fuel Production
    Eswaran, Sudha ;
    Subramaniam, Senthil
    2021-10-01 | PDF
    This detail the economics of Catalytic Hydrothermolysis (CH), an approve pathway for sustainable aviation fuel (SAF) production. Techno-economic analysis was conducted with the assumption of CH processing facility that process 832 metric tonnes per day of feedstock into renewable fuels such as SAF, gasoline and diesel. Economic data includes estima ...
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