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Conversion and performance evaluation of a hydrogen powered Ford F-250 pickup truck.

机译：氢动力福特F-250皮卡车的改装和性能评估。

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摘要

The following thesis details all design, fabrication and analysis necessary for the conversion of a Compressed Natural Gas (CNG) powered full size pickup truck to run on compressed hydrogen gas. As an industry for hydrogen powered vehicles develops, adherence to a specified set of safety regulations is necessary to ensure the safety of vehicle end users. Currently accepted standards for hydrogen vehicle safety follow regulations put forth by NFPA for CNG powered vehicles. The design of the fuel system follows applicable hydrogen and CNG regulations. A potentially revolutionary fuel delivery system that consolidates a gaseous fuel injector and a spark plug is to be employed on this vehicle.;A device of this type has the potential to greatly simplify future hydrogen vehicle conversions. Electronic sensors implemented in the system provide a means for leak detection around the location of the tanks. A fuel cell and a bank of three super capacitors have been installed to replace the alternator and battery. Replacing the alternator with a fuel cell converts the chemical energy of the hydrogen fuel already stored on the vehicle to electrical energy more efficiently than using the engine to convert chemical energy into mechanical energy then into electrical energy. The fuel cell was a 1.2 kW PEM stack type produced by Ballard. Computer control of the engine is accomplished via the factory computer already installed in the truck. Programming a fuel table custom to hydrogen is accomplished via an aftermarket reprogramming module and complementing software. The initial fuel table is determined from thermodynamic relations pertaining to compressible flow. Preliminary ignition timing tables were obtained from approximations of hydrogen flame speed scaled to the density of the air fuel mixture. Included in this thesis are all design criteria, analysis and recommended methods for modeling engine performance.
机译：以下论文详细介绍了将压缩天然气（CNG）驱动的全尺寸皮卡车转换为以压缩氢气运行所需的所有设计，制造和分析。随着氢动力汽车行业的发展，必须遵守一组特定的安全法规以确保汽车最终用户的安全。目前公认的氢能车辆安全标准遵循NFPA提出的CNG动力汽车法规。燃油系统的设计遵循适用的氢气和CNG法规。这种车辆上将采用一种潜在的革命性燃料输送系统，该系统将气态燃料喷射器和火花塞整合在一起。这种类型的设备具有极大地简化未来氢能车辆改装的潜力。系统中实现的电子传感器为检测储罐周围的位置提供了一种方法。已安装燃料电池和三个超级电容器组，以替换交流发电机和电池。与使用发动机将化学能转换成机械能再转换成电能相比，用燃料电池代替交流发电机可以将已经存储在车辆上的氢燃料的化学能更有效地转换为电能。燃料电池是Ballard生产的1.2 kW PEM堆式。发动机的计算机控制是通过卡车中已经安装的工厂计算机完成的。通过售后重编程模块和补充软件，可以将定制的燃料表编程为氢气。初始燃料表是根据与可压缩流有关的热力学关系确定的。根据氢气火焰速度的近似值（根据空气燃料混合物的密度）可以得出初步的点火正时表。本文包括所有用于发动机性能建模的设计准则，分析和推荐方法。

著录项

  • 作者

    Gardner, Julian J. L.;

  • 作者单位

    University of Nevada, Las Vegas.;

  • 授予单位 University of Nevada, Las Vegas.;
  • 学科 Engineering Automotive.;Engineering Mechanical.
  • 学位 M.S.
  • 年度 2007
  • 页码 84 p.
  • 总页数 84
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自动化技术及设备;机械、仪表工业;
  • 关键词

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