Engine improvements to reduce NOx

通过向市场提供重型燃气轮机，确保可靠、高效的能源供应， 航空衍生燃气轮机和工业燃气轮机是西门子加拿大有限公司(电力)的目标 发电、分布式发电、气动衍生燃气轮机)。下一代发动机将需要 遵守日益严格的污染物排放法规，不仅针对高甲烷天然气，而且 也适用于包括较高碳氢化合物和惰性气体在内的各种燃料成分。这一能力 对于许多人来说，使用液体燃料进行紧急备用或满负荷运行也是强制性的 申请。这些要求给燃烧带来了巨大的技术和建模挑战 系统开发。 该项目旨在提高我们开发清洁燃烧技术的能力。污染物的改善 排放需要改进混合，以确保燃料和空气混合物更完整的燃烧。 燃料与空气的有效混合有可能减少NOx排放，但目前对 混合过程是不完整的，计算流体动力学(CFD)模型还不能 对整个物理过程进行建模。该项目的目的是研究一种简化的混合模型。 提高对物理混合过程的理解和对物理混合的理解 现有CFD混合过程模型的局限性。

Ensuring a reliable, efficient energy supply through the provision to the market of of heavy duty gas turbines, aero derivative gas turbines and industrial gas turbines is the aim of Siemens Canada Limited (Power Generation , Distributed Generation, Aeroderivative Gas turbine). The next generation of engines will need to comply with increasingly stringent pollutant emissions legislation not only for high methane natural gas but also for a wide range of fuel compositions encompassing higher hydrocarbons and inert gases. The capability to operate on liquid fuel either for emergency backup of for full baseload operation is also mandatory for many applications. These requirements impose significant technical and modeling challenges for the combustion system development. This project aims to enhance our ability to develop clean combustion technology. Improvements in pollutant emissions requires improved mixing to ensure a more complete combustion of the fuel and air mixture. Effective mixing of the fuel with air has the potential for reducing NOx emissions, yet current understanding of the mixing process is incomplete and the computational fluid dynamics (CFD) modelling is not yet able to model the complete physical process. The aim of the project is to study a simplified model of the mixing chamber to improve understanding of the physical mixing processes and improve understanding of the limitations in the current CFD models of the mixing processes.