Performance assessment and durability of piezoelectric actuators for hydrogen fuel injectors

氢燃料喷射器压电执行器的性能评估和耐久性

• 批准号: 364965-2008
• 负责人: Rajapakse, Nimal
• 金额: $ 0.64万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=434411
• 关键词: Performance; assessment; durability; piezoelectric; actuators

Transportation and industrial power generation sectors are the largest CO2 emission sources in Canada. Air pollution caused by transportation and industrial power generation has a direct effect on the health of people and quality of life. The development of a sustainable transportation sector relying on hydrogen and other clean fuel technologies is the long-term answer for reducing harmful emissions and preserving the environment. Westport Power Inc. in Vancouver is the leading Canadian developer of internal combustion engine technology based on clean-burning fuels such as natural gas, hydrogen and Hydrogen enriched Compressed Natural Gas (HCNG). A key element of hydrogen-based clean engine technology is the fuel injector. It is widely accepted that improved fuel injection strategies are the key to implementing an optimized engine strategy to achieve high efficiency. The development of hydrogen-based engine technology therefore requires research on advanced fuel injector designs and performance and durability of injector technology in hydrogen environments. The main challenge with hydrogen fuel injectors is durability and injection accuracy. As a part of their long-term strategy, Westport will also be developing next generation fuel injectors for hydrogen-based clean engines. Piezo actuator-based hydrogen injectors can provide superior injection accuracy and control. At present, there is very limited understanding of the performance and durability of piezo actuators in hydrogen environments. This project is therefore aimed at filling this knowledge gap by examining the key research issues related to the performance and durability of and development of health monitoring technology for piezo actuators exposed to hydrogen. The findings of this project would provide Canadian clean engine technology developers such as Westport with strategies to improve their technology development for the hydrogen economy and become more

运输和工业发电部门是加拿大最大的二氧化碳排放源。交通和工业发电造成的空气污染直接影响到人们的健康和生活质量。发展依靠氢和其他清洁燃料技术的可持续运输部门是减少有害排放和保护环境的长期解决办法。韦斯特波特电力公司位于温哥华的加拿大内燃机公司是加拿大领先的内燃机技术开发商，该技术基于天然气、氢气和富氢压缩天然气（HCNG）等清洁燃烧燃料。氢基清洁发动机技术的一个关键要素是燃料喷射器。人们普遍认为，改进的燃料喷射策略是实施优化的发动机策略以实现高效率的关键。因此，氢基发动机技术的发展需要研究先进的燃料喷射器设计以及喷射器技术在氢环境中的性能和耐久性。氢燃料喷射器的主要挑战是耐用性和喷射精度。作为其长期战略的一部分，韦斯特波特还将开发下一代氢基清洁发动机燃料喷射器。基于压电致动器的氢喷射器可以提供上级喷射精度和控制。目前，对压电致动器在氢气环境中的性能和耐久性的了解非常有限。因此，该项目旨在通过研究与接触氢气的压电致动器的性能和耐久性以及健康监测技术的发展相关的关键研究问题来填补这一知识空白。该项目的研究结果将为加拿大清洁发动机技术开发商（如韦斯特波特）提供战略，以改善其氢经济技术开发，