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首页> 外文期刊>Journal of Engineering for Gas Turbines and Power >Analysis of Passenger Car Turbocharged Diesel Engines Performance When Tested at Altitude and of the Altitude Simulator Device Used
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Analysis of Passenger Car Turbocharged Diesel Engines Performance When Tested at Altitude and of the Altitude Simulator Device Used

机译：在高度和高度模拟器装置测试时，乘用车涡轮增压柴油机性能分析

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摘要

According to current worldwide trends for homologation vehicles in real driving conditions is forced to test the engines in altitude and in highly dynamic driving cycles in order to approach nowadays and next future emissions standard. Up to now, there were two main options to perform this type of tests: round-robin tests of the whole vehicle or hypobaric chambers, both with high costs and low repeatability. In this paper a new device is described, which can emulate ambient conditions at whatever altitude between sea level and 5000m high. Even it can be used to emulate ambient conditions at sea level when test bench is placed up to 2000m high. The main advantages of the altitude simulation equipment are as follows: dynamic emulation of all the psychrometric variables affecting the vehicles during round-robin tests; lower space usage and low-energy consumption. The altitude simulator (AS) has been validated comparing with results from a hypobaric chamber at different altitudes. Previously a research about the dispersion in the measurements of both testing devices has been done for assessing the results of the comparison experiment. Final conclusion resulted in the same operating performance and emissions of the studied engine with both types of testing equipment for altitude simulation.
机译：根据目前的全球驾驶条件中的同源车辆的趋势被迫在高度和高度动态的驾驶周期中测试发动机，以便现在和下一个未来的排放标准。到目前为止，有两种主要选择来执行这种类型的测试：全车辆或低钙腔室的循环试验，既具有高成本，重复性低。在本文中，描述了一种新装置，可以在海平面和5000m高的任何海拔地区模拟环境条件。即使它可以用于在高达2000米的测试台上的海平面上模拟海平面的环境条件。高度仿真设备的主要优点如下：在循环试验期间影响车辆的所有心理措施变量的动态仿真;较低的空间使用和低耗耗。高度模拟器（AS）已被验证与在不同高度的高差距室的结果进行比较。以前已经进行了关于在两种测试设备的测量中进行分散的研究，用于评估比较实验的结果。最后的结论导致研究的发动机的操作性能和排放具有两种类型的高度模拟测试设备。

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  • 来源
    《Journal of Engineering for Gas Turbines and Power》 |2019年第8期|081017.1-081017.9|共9页
  • 作者

    Broatch Alberto; Bermudez Vicente; Ramon Serrano Jose; Tabet Roberto; Gomez Javier; Bender Stefan;

  • 作者单位

    Univ Politecn Valencia CMT Motores Termicos Camino Vera S-N E-46022 Valencia Spain;

    Univ Politecn Valencia CMT Motores Termicos Camino Vera S-N E-46022 Valencia Spain;

    Univ Politecn Valencia CMT Motores Termicos Camino Vera S-N E-46022 Valencia Spain;

    Univ Politecn Valencia CMT Motores Termicos Camino Vera S-N E-46022 Valencia Spain;

    HORIBA Europe Gmbh Landwehrstr 55 D-64293 Darmstadt Germany;

    HORIBA Europe Gmbh Landwehrstr 55 D-64293 Darmstadt Germany;

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