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    Impact of Adverse Environmental Conditions on Rotorcraft Operational Performance and Pollutant Emissions

    Source: Journal of Engineering for Gas Turbines and Power:;2018:;volume( 140 ):;issue: 002::page 21201
    Author:
    Ortiz-Carretero, Jesus
    ,
    Castillo Pardo, Alejandro
    ,
    Goulos, Ioannis
    ,
    Pachidis, Vassilios
    DOI: 10.1115/1.4037751
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: It is anticipated that the contribution of rotorcraft activities to the environmental impact of civil aviation will increase in the future. Due to their versatility and robustness, helicopters are often operated in harsh environments with extreme ambient conditions. These severe conditions not only affect the performance of the engine but also affect the aerodynamics of the rotorcraft. This impact is reflected in the fuel burn and pollutants emitted by the rotorcraft during a mission. The aim of this paper is to introduce an exhaustive methodology to quantify the influence adverse environment conditions have in the mission fuel consumption and the associated emissions of nitrogen oxides (NOx). An emergency medical service (EMS) and a search and rescue (SAR) mission are used as case studies to simulate the effects of extreme temperatures, high altitude, and compressor degradation on a representative twin-engine medium (TEM) weight helicopter, the Sikorsky UH-60A Black Hawk. A simulation tool for helicopter mission performance analysis developed and validated at Cranfield University was employed. This software comprises different modules that enable the analysis of helicopter flight dynamics, powerplant performance, and exhaust emissions over a user-defined flight path profile. For the validation of the models implemented, extensive comparisons with experimental data are presented throughout for rotorcraft and engine performance as well as NOx emissions. Reductions as high as 12% and 40% in mission fuel and NOx emissions, respectively, were observed for the “high and cold” scenario simulated at the SAR role relative to the same mission trajectory under standard conditions.
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      Impact of Adverse Environmental Conditions on Rotorcraft Operational Performance and Pollutant Emissions

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    contributor authorOrtiz-Carretero, Jesus
    contributor authorCastillo Pardo, Alejandro
    contributor authorGoulos, Ioannis
    contributor authorPachidis, Vassilios
    date accessioned2019-02-28T10:58:08Z
    date available2019-02-28T10:58:08Z
    date copyright10/3/2017 12:00:00 AM
    date issued2018
    identifier issn0742-4795
    identifier othergtp_140_02_021201.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4251264
    description abstractIt is anticipated that the contribution of rotorcraft activities to the environmental impact of civil aviation will increase in the future. Due to their versatility and robustness, helicopters are often operated in harsh environments with extreme ambient conditions. These severe conditions not only affect the performance of the engine but also affect the aerodynamics of the rotorcraft. This impact is reflected in the fuel burn and pollutants emitted by the rotorcraft during a mission. The aim of this paper is to introduce an exhaustive methodology to quantify the influence adverse environment conditions have in the mission fuel consumption and the associated emissions of nitrogen oxides (NOx). An emergency medical service (EMS) and a search and rescue (SAR) mission are used as case studies to simulate the effects of extreme temperatures, high altitude, and compressor degradation on a representative twin-engine medium (TEM) weight helicopter, the Sikorsky UH-60A Black Hawk. A simulation tool for helicopter mission performance analysis developed and validated at Cranfield University was employed. This software comprises different modules that enable the analysis of helicopter flight dynamics, powerplant performance, and exhaust emissions over a user-defined flight path profile. For the validation of the models implemented, extensive comparisons with experimental data are presented throughout for rotorcraft and engine performance as well as NOx emissions. Reductions as high as 12% and 40% in mission fuel and NOx emissions, respectively, were observed for the “high and cold” scenario simulated at the SAR role relative to the same mission trajectory under standard conditions.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleImpact of Adverse Environmental Conditions on Rotorcraft Operational Performance and Pollutant Emissions
    typeJournal Paper
    journal volume140
    journal issue2
    journal titleJournal of Engineering for Gas Turbines and Power
    identifier doi10.1115/1.4037751
    journal fristpage21201
    journal lastpage021201-14
    treeJournal of Engineering for Gas Turbines and Power:;2018:;volume( 140 ):;issue: 002
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian