Low TRL spray measurement with mid TRL reacting correlations

低 TRL 喷雾测量与中 TRL 反应相关性

• 批准号: 2293596
• 金额: --
• 依托单位: Loughborough University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2293596
• 关键词: Low; TRL; spray; measurement; mid

A key performance parameter for a modern, low emission, gas turbine combustion system is the ability to generate a uniform and well atomised spray. However, sprays are complex droplet laden multiphase flows in which multiple parameters can influence a variety of break-up mechanisms. This makes it particularly challenging in terms of being able to understand which non-dimensional performance parameters are conserved between the engine, Intermediate pressure facilities and bespoke spray test facilities that are commonly used to develop modern, low emission, fuel injectors. As a consequence, injector development often relies on the use of expensive and time-consuming high Technology Readiness Level (TRL) facilities. A key objective of this work is to identify what are the key processes that determine the spray distribution generated by modern, low emission injectors and how this links to the reacting flow performance of the combustion system. The intention is then to provide a novel strategy by which the relevant physical process can be suitably scaled and captured in simplified facilities operating at more benign conditions which are also amenable to high quality measurements. This will be undertaken using a variety of experimental and data analysis techniques. In this way cost effective measurements on low TRL facilities can be used for the rapid development of low emission gas turbine fuel injectors which are capable of providing the required operability characteristics.

现代低排放燃气涡轮机燃烧系统的关键性能参数是产生均匀且良好雾化的喷雾的能力。然而，喷雾是复杂的液滴负载多相流，其中多个参数可以影响各种破碎机制。这使得它在能够理解哪些无量纲性能参数在发动机、中压设施和定制喷雾测试设施之间是保守的方面特别具有挑战性，这些设施通常用于开发现代化的低排放燃料喷射器。因此，注射器的开发往往依赖于昂贵和耗时的高技术准备水平（TRL）设施的使用。这项工作的一个关键目标是确定什么是决定现代，低排放喷射器产生的喷雾分布的关键过程，以及如何将其与燃烧系统的反应流性能联系起来。然后，目的是提供一种新的策略，通过该策略，相关的物理过程可以在更良性的条件下操作的简化设施中适当地缩放和捕获，这些条件也适合于高质量的测量。这将使用各种实验和数据分析技术进行。以这种方式，低TRL设施上的成本有效的测量可以用于能够提供所需的可操作性特性的低排放气体涡轮机燃料喷射器的快速开发。