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Experimental Analysis of Engine Exhaust Waste Energy Recovery Using Power Turbine Technology for Light Duty Application

机译：用电力涡轮机技术对发动机排气废能回收的实验分析

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An experimental analysis was executed on a NA (Natural Aspirated) 4-stroke gasoline engine to investigate the potential of exhaust waste energy recovery using power turbine technology for light duty application. Restrictions with decreasing diameter were mounted in the exhaust to simulate different vane positions of a VGT (Variable Geometry Turbine) and in-cylinder pressure measurements were performed to evaluate the effect of increased exhaust back pressure on intake- and exhaust pumping losses and on engine performance. Test points in the engine map were chosen on the basis of high residence time for the vehicle during the NEDC (New European Driving Cycle). The theoretically retrievable power was calculated in case a turbine is mounted instead of a restriction and the net balance was obtained between pumping power losses and recovered energy.
机译：在Na（天然吸气）4行程汽油发动机上执行实验分析，以研究利用电力涡轮技术的废气能量回收的潜力。 径向的限制安装在排气中以模拟VGT（可变几何涡轮机）的不同叶片位置，并进行缸内压力测量以评估增加的排气背压对进气和排气泵送损失以及发动机性能的影响。 。 在NEDC（新欧洲驾驶循环）的高停留时间基础上选择发动机地图中的测试点。 在安装涡轮机而不是限制并且在泵送功率损耗和恢复的能量之间获得净平衡来计算理论上可检索的功率。

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