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重型车用柴油机废气发电复合涡轮行驶工况的适应性 被引量：3

Adaptive on Driving Cycles of Waste Energy Recovery Turbo-Compound Systems on a Heavy Duty Diesel Engine
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摘要 针对发电复合涡轮形式对发动机余热回收效果的影响,建立了详细的某重型柴油机废气涡轮回收整车仿真平台,构建了电辅助复合涡轮、并联复合涡轮、纯电动复合涡轮和串联复合涡轮4种形式废气能量回收方案,对比分析了这4种典型的复合涡轮结构在发动机外特性、瞬态工况和道路运行工况下的废气能量转换效率及节油效果.研究结果表明,不同的驾驶工况应选用不同的复合涡轮形式;采用基于涡前压力动态优化控制,是实现发动机功率与涡轮发电功率合理分配、达到发动机总体效率优化的关键.研究结果对于复合涡轮结构选型以及发电复合涡轮与发动机的匹配与集成具有指导价值. In order to study the influence of turbo-compound form on engine waste energy recovery, a detailed heavyduty engine simulation platform is implemented in this research, which can be equipped with four different electricturbo-compound systems, such as electrically assisted turbocharger, power turbine in series with the turbochargerpower turbine in parallel with the turbocharger and electrically split turbocharger. The performance of four turbo-compound systems is compared and analyzed under steady operating conditions, transient operating conditions andvehicle driving cycles, respectively. It is indicated that different turbo-compound systems are suitable for differentdriving conditions. The optimization of exhaust pressure based on reasonable distribution between engine brake powerand turbo generated power is the key to improving the overall efficiency. This research provides a great value for guiding the turbo-compound selection and integration between engines and turbo-compound systems.
作者 谢辉 李苏苏
机构地区 天津大学内燃机燃烧学国家重点实验室
出处 《天津大学学报（自然科学与工程技术版）》 EI CAS CSCD 北大核心 2014年第6期558-564,共7页 Journal of Tianjin University：Science and Technology
基金 国家重点基础研究发展计划(973计划)项目资助(2011CB707206)
关键词 柴油机 余热能利用 复合涡轮 运行工况 diesel engine waste energy recovery turbo-compound system driving cycle
分类号 TK421 [动力工程及工程热物理—动力机械及工程]
  • 相关文献

参考文献12

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共引文献32

同被引文献16

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引证文献3

二级引证文献4

天津大学学报（自然科学与工程技术版）
2014年 第6期

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