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首页> 外文学位 >Plant oil fueled MFPs as a development mechanism: Engine modification kit design, endurance testing, and agroforestry crop adoption implications.
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Plant oil fueled MFPs as a development mechanism: Engine modification kit design, endurance testing, and agroforestry crop adoption implications.

机译：植物油为多功能一体机提供了一种发展机制：发动机改装套件设计，耐用性测试以及农用农作物的采用意义。

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摘要

Multi-function energy Platforms (MFPs) are agroprocessing centers comprised of a small stationary compression ignition engine driving various milling, grinding, or pumping attachments. The pairing of this mature technology with plant oil fueling has been explored in detail through three complimentary studies. First, an engine modification kit was designed and tested. It was found that a legacy engine component could be modified as a passive pre-heater, and that when the injector timing was advanced to 25° Before Top Dead Center (BTDC) and the Injector Valve Opening Pressure (IVOP) was increased to 15 MPa, optimal engine performance was obtained. This performance was comparable to diesel fueling.;The second study included a 500 hour longevity test examining the durability of utilizing the designed kit for fueling the engine on waste vegetable oil. The study served to characterize break-in wear conditions. Lubrication oil was closely monitored and modeled toward the identification of wear metal generation rates and the estimation of important maintenance time-tables such as lube oil change rate and piston ring replacement.;In the third study ten engines were monitored in the field over a 13 month period. Operation analysis as well as lubrication oil monitoring and other performance parameters were studied. It was found that the most significant engine wear was not incurred from fuel related causes, but operator-error and environmental factors. In addition to the technical analysis, an economic investigation provided evidence that plant oil fueling could vastly improve the profitability of the platforms.;As a complement to the primary investigations regarding engine wear and performance, a study was carried out to examine the potential factors influencing adoption of a relevant plant oil crop, Jatropha. The exploratory study pointed toward water access being the most significant factor related to adoption, though issues of a farmer's perceived risk and uncertainty were also important.
机译：多功能能源平台（MFP）是农业加工中心，由小型固定式压燃式发动机组成，该发动机驱动各种铣削，磨削或泵送附件。通过三项免费研究详细探讨了该成熟技术与植物油加油的结合。首先，设计并测试了发动机改装套件。发现可以将传统的发动机组件修改为被动式预热器，并且当喷油嘴正时提前到上死点（BTDC）之前的25°且喷油嘴打开压力（IVOP）增加到15 MPa时，获得了最佳的发动机性能。该性能可与柴油燃料相媲美。；第二项研究包括500小时的寿命测试，检查了使用设计的套件为植物油作为废植物油加油的耐久性。该研究用于表征磨合磨损条件。密切监控润滑油并建模，以识别磨损金属的产生速率，并估算重要的维修时间表，例如润滑油变化率和活塞环更换。；在第三项研究中，在现场对13台发动机进行了10台监控一个月期间。研究了运行分析以及润滑油监测和其他性能参数。发现最明显的发动机磨损不是由与燃料有关的原因引起的，而是由操作者的错误和环境因素引起的。除了技术分析外，一项经济调查还提供了证据证明植物油的加油可以大大提高平台的盈利能力。;作为有关发动机磨损和性能的主要研究的补充，我们进行了一项研究以研究影响发动机潜在性能的因素采用相关的植物油作物，麻风树。这项探索性研究指出，取水是与采用相关的最重要因素，尽管农民的感知风险和不确定性问题也很重要。

著录项

  • 作者

    Basinger, Matthew L.;

  • 作者单位

    Columbia University.;

  • 授予单位 Columbia University.;
  • 学科 Alternative Energy.;Engineering Environmental.
  • 学位 Eng.Sc.D.
  • 年度 2010
  • 页码 326 p.
  • 总页数 326
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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