Development of a Phosphorescence Technique for Joint Velocity-Scalar-Temperature Measurements in Lean, Premixed, Stratified and Mild Combustion

稀薄、预混、分层和温和燃烧中联合速度-标量-温度测量磷光技术的开发

• 批准号: EP/G064644/1
• 负责人: Andrew Heyes
• 金额: $ 25.42万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2010
• 资助国家: 英国
• 起止时间: 2010 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FG064644%2F1
• 关键词: Development; Phosphorescence; Technique; Joint; Velocity

We aim to develop a diagnostic technique for joint scalar and velocity measurements in lean-premixed, stratified and 'mild' combustion. Such flames require a more detailed understanding of flow, mixing, combustion and their interaction than classical non-premixed flames, and our technique will provide new insights at an affordable cost. Our technique extends the classical PIV by using different types of phosphorescent particles that will allow different fluid streams to be distinguished. The emission decay-rate and the emission spectrum of these particles strongly depend on temperature, which allows the temperature field to be measured at the same time as the velocity field. Eventually, our technique will provide simultaneous velocity/mixing/temperature data, as required for model development and for the design of cleaner, lean premixed gas-turbine combustors, stratified internal combustion engines, and future combustors in the 'mild' combustion regime. A further attractive feature of our technique is its potential to be applied throughout an entire combustor, including the analysis of film cooling near the walls where scattering effects often preclude the use of particle image velocimetry techniques.

我们的目标是开发一种诊断技术，用于稀薄预混燃烧、分层燃烧和温和燃烧中的标量和速度联合测量。与经典的非预混火焰相比，这种火焰需要更详细地了解流动、混合、燃烧及其相互作用，我们的技术将以负担得起的成本提供新的见解。我们的技术通过使用不同类型的磷光粒子来扩展经典的PIV，从而可以区分不同的流体。这些粒子的发射衰减率和发射光谱强烈依赖于温度，这使得温度场可以与速度场同时测量。最终，我们的技术将提供同步的速度/混合/温度数据，这是模型开发和设计更清洁、稀薄的预混燃气轮机燃烧室、分层内燃机和未来温和燃烧区域燃烧室所需的。我们技术的另一个吸引人的特点是它有可能应用于整个燃烧室，包括分析壁面附近的气膜冷却，在那里散射效应往往排除了使用粒子图像测速技术的可能性。

项目成果

On the characterisation of tracer particles for thermographic particle image velocimetry

热成像颗粒图像测速示踪颗粒的表征

• DOI: 10.1007/s00340-014-5997-5
• 发表时间: 2015
• 期刊: Applied Physics B
• 作者: Fond B

Simultaneous temperature, mixture fraction and velocity imaging in turbulent flows using thermographic phosphor tracer particles.

• DOI: 10.1364/oe.20.022118
• 发表时间: 2012-09
• 期刊: Optics express
• 影响因子: 3.8
• 作者: B. Fond;Christopher Abram;A. Heyes;A. Kempf;F. Beyrau

High-speed planar thermometry and velocimetry using thermographic phosphor particles

• DOI: 10.1007/s00340-013-5411-8
• 发表时间: 2013-05-01
• 期刊: APPLIED PHYSICS B-LASERS AND OPTICS
• 影响因子: 2.1
• 作者: Abram, Christopher;Fond, Benoit;Beyrau, Frank
• 通讯作者: Beyrau, Frank

Thermographic phosphor particle tracers for simultaneous vector-scalar measurements in turbulent flows

用于在湍流中同时进行矢量标量测量的热成像荧光颗粒示踪剂

• 发表时间: 2012
• 作者: Fond, B