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首页> 外文期刊>Energy Conversion & Management >Using one-dimensional modeling to analyse the influence of the use of biodiesels on the dynamic behavior of solenoid-operated injectors in common rail systems: Detailed injection system model
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Using one-dimensional modeling to analyse the influence of the use of biodiesels on the dynamic behavior of solenoid-operated injectors in common rail systems: Detailed injection system model

机译：使用一维建模来分析生物柴油的使用对共轨系统中电磁操作喷油器动态行为的影响：详细的喷油系统模型

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摘要

A combined experimental and computational investigation has been performed in order to evaluate the influence of physical properties of biodiesel on the injection process in a common-direct injection system with second generation solenoid injectors. For that purpose, after a complete characterization of the system, which involved mechanical and hydraulic characterization, a one-dimensional model has been obtained and extensively validated. Simulations have then been performed with a standard diesel and a 100% rape methyl ester (RME) biodiesel which allowed a comparison and analysis of the dynamic response of the injector to be done. Different injection strategies involving main injection and main plus post-injection have been used to explore the impact of the use of biodiesel on the performance and stability of solenoid injectors.As far as the dynamic response of the injector is concerned, the results obtained have clearly shown that the use of biodiesel affects the dynamic response of the needle, especially at low injection pressures. The behavior of the system under multi-injection strategies (main plus post-injection) has been also evaluated determining for different operating conditions (injection pressures and backpressures) the minimum dwell time between injections to assure a stable behavior in the injection process (mass flow rate). Important differences have been found between biodiesel and standard diesel in this critical parameter at low injection pressures, becoming less important at high injection pressure. Finally, a modification on the injector hardware has been proposed in order to compensate these differences.
机译：为了评估生物柴油的物理特性对具有第二代螺线管喷射器的普通直接喷射系统中的喷射过程的影响，已进行了组合的实验和计算研究。为此，在对系统进行完整的表征（包括机械和液压表征）之后，已获得一维模型并进行了广泛验证。然后，使用标准柴油和100％油菜甲酯（RME）生物柴油进行了仿真，可以对喷射器的动态响应进行比较和分析。已经使用了涉及主喷射和主喷射以及后喷射的不同喷射策略来探索生物柴油的使用对电磁喷射器性能和稳定性的影响。就喷射器的动态响应而言，获得的结果显然研究表明，生物柴油的使用会影响针的动态响应，尤其是在低注射压力下。还评估了系统在多次进样策略（主进样和后进样）下的行为，确定了不同操作条件（进样压力和背压）之间的最小停留时间，以确保进样过程中的稳定行为（质量流量）率）。在低喷射压力下，生物柴油与标准柴油之间的关键参数之间已发现重要差异，在高喷射压力下，生物柴油与标准柴油之间的重要性不再那么重要。最后，已经提出了对喷射器硬件的修改，以补偿这些差异。

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  • 来源
    《Energy Conversion & Management》 |2012年第1期|p.90-99|共10页
  • 作者

    R. Payri; F.J. Salvador; P. Marti-Aldaravi; J. Martinez-Lopez;

  • 作者单位

    CMT-Motores Termicos, Universitat Politcnica de Valencia,Camino de Vera s, E-46022, Spain;

    CMT-Motores Termicos, Universitat Politcnica de Valencia,Camino de Vera s, E-46022, Spain;

    CMT-Motores Termicos, Universitat Politcnica de Valencia,Camino de Vera s, E-46022, Spain;

    CMT-Motores Termicos, Universitat Politcnica de Valencia,Camino de Vera s, E-46022, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    injector; modeling; biodiesel; diesel; dynamic;

    机译：注射器;造型;生物柴油柴油机;动态;

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