An integrated approach to fuel-flexible injector design

燃料灵活喷油器设计的集成方法

• 批准号: 476648-2014
• 负责人: Bergthorson, Jeffrey
• 金额: $ 7.36万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=599527
• 关键词: integrated; approach; fuel; flexible; injector

The proposed CRD project between McGill University, the University of Toronto, and Rolls Royce Canada (RRC) represents a major new element in a strategic research program on fuel-flexible ultra-low-emission gas-turbine engines (GTE) for power generation applications. These engines, which typically burn natural gas but are experiencing increased customer demand for operability with renewable alternative fuels, represent a large and growing sector of the power-generation market. Current designs for ultra-low-emission combustors (e.g. Dry Low Emission (DLE) combustors) do not generally allow for broad fuel-flexibility, largely due to insufficient understanding regarding the effects of unconventional fuel compositions on engine-relevant combustion phenomena, such as flashback, blow-off, and emissions. This manifests both as difficulties in heuristically designing fuel-flexible combustors and inaccuracy/unreliability in numerical techniques for simulating the combustor behavior, viz. computational fluid dynamic (CFD) simulations of turbulent reacting flows. The project partners have collaboratively developed an extensive research and development plan that outlines the necessary critical advancements needed to improve the design of fuel-flexible DLE combustors. The proposed research investigates many of these critical phenomena both experimentally, using laboratory experiments ranging from a fundamental apparatus to an engine-relevant geometry, and computationally, using state-of-the-art turbulent combustion modelling approaches, to improve the design tools available to RRC. These improved tools will enable RRC to design next-generation fuel-flexible combustors with reduced emissions and higher performance.

McGill大学、多伦多大学和劳斯莱斯加拿大公司（RRC）之间拟议的CRD项目代表了用于发电应用的燃料柔性超低排放燃气涡轮发动机（GTE）战略研究计划的一个重要新元素。这些发动机通常燃烧天然气，但客户对可再生替代燃料的可操作性需求日益增加，代表了发电市场中一个庞大且不断增长的领域。目前的超低排放燃烧器（如干式低排放燃烧器）设计通常不允许广泛的燃料灵活性，这主要是由于对非常规燃料成分对发动机相关燃烧现象的影响了解不足，如闪回、吹落和排放。这既表现为启发式设计燃料柔性燃烧器的困难，也表现为模拟燃烧器行为的数值技术（即湍流反应流的计算流体动力学（CFD）模拟）的不准确性/不可靠性。项目合作伙伴共同制定了一项广泛的研究和开发计划，概述了改进燃料柔性DLE燃烧器设计所需的必要关键进展。本研究通过实验和计算两方面对这些关键现象进行了研究，包括从基础设备到发动机相关几何的实验室实验，以及使用最先进的湍流燃烧建模方法，以改进RRC可用的设计工具。这些改进的工具将使RRC能够设计出排放更少、性能更高的下一代燃料柔性燃烧器。