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    Study on Altitude Adaptability of a Turbocharged Off-Road Diesel Engine

    Source: Journal of Engineering for Gas Turbines and Power:;2020:;volume( 142 ):;issue: 011::page 0114501-1
    Author:
    Huang, Fenlian
    ,
    Lei, Jilin
    ,
    Xin, Qianfan
    DOI: 10.1115/1.4047932
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This paper investigates the operating characteristics of an off-road diesel engine to enhance its power performance in plateau. First, the impacts of altitude on the power, fuel economy, and emissions characteristics were analyzed by a bench test. Second, the combustion and overall performance working at different altitudes were studied by three-dimensional numerical simulation, including the relationship between fuel injection parameters and engine performance. The results showed that altitude significantly affects the performance of the off-road diesel engine. As the altitude increased from 0 m to 2000 m, the engine power decreased as much as 4.3%, and the brake-specific fuel consumption (BSFC) increased as much as 6%. At the peak torque condition, the intake manifold boost pressure and the exhaust manifold pressure both reduced with a rise of altitude, while the intake and exhaust manifold temperatures both increased with a rise of altitude. Finally, after comparing the in-cylinder flow conditions and combustion characteristics given by six combustion chamber designs that have different shrinkage ratios, the engine performance at 4000 m altitude with five different fuel spray angles were further optimized. The engine rated power increased by 8.2% when the shrinkage ratio was 7.28% and the fuel spray angle was 150 deg at the 4000 m altitude.
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      Study on Altitude Adaptability of a Turbocharged Off-Road Diesel Engine

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4275278
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    contributor authorHuang, Fenlian
    contributor authorLei, Jilin
    contributor authorXin, Qianfan
    date accessioned2022-02-04T22:17:36Z
    date available2022-02-04T22:17:36Z
    date copyright10/29/2020 12:00:00 AM
    date issued2020
    identifier issn0742-4795
    identifier otheromae_143_2_021202.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4275278
    description abstractThis paper investigates the operating characteristics of an off-road diesel engine to enhance its power performance in plateau. First, the impacts of altitude on the power, fuel economy, and emissions characteristics were analyzed by a bench test. Second, the combustion and overall performance working at different altitudes were studied by three-dimensional numerical simulation, including the relationship between fuel injection parameters and engine performance. The results showed that altitude significantly affects the performance of the off-road diesel engine. As the altitude increased from 0 m to 2000 m, the engine power decreased as much as 4.3%, and the brake-specific fuel consumption (BSFC) increased as much as 6%. At the peak torque condition, the intake manifold boost pressure and the exhaust manifold pressure both reduced with a rise of altitude, while the intake and exhaust manifold temperatures both increased with a rise of altitude. Finally, after comparing the in-cylinder flow conditions and combustion characteristics given by six combustion chamber designs that have different shrinkage ratios, the engine performance at 4000 m altitude with five different fuel spray angles were further optimized. The engine rated power increased by 8.2% when the shrinkage ratio was 7.28% and the fuel spray angle was 150 deg at the 4000 m altitude.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleStudy on Altitude Adaptability of a Turbocharged Off-Road Diesel Engine
    typeJournal Paper
    journal volume142
    journal issue11
    journal titleJournal of Engineering for Gas Turbines and Power
    identifier doi10.1115/1.4047932
    journal fristpage0114501-1
    journal lastpage0114501-11
    page11
    treeJournal of Engineering for Gas Turbines and Power:;2020:;volume( 142 ):;issue: 011
    contenttypeFulltext
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