ENTHALPY-CONTROLLED AUTOIGNITION BASED COMBUSTION
Abstract
Conventional gas turbines (GTs) for aero-propulsion typically feature diffusion flame-based technologies due to improved combustion stability. However, due to increasingly stringent emissions regulations, and a desire to provide increased range with lower signatures, piloted premixed combustors are coming to the fore. Autoignition based combustion has the potential to lead to a decoupling of different reaction zones, e.g. via a two-stage ignition process, with turbulent mixing (e.g. of the first stage combustion products) expected to play a significant role in determining the heat release characteristics. The proposed project will provide a comprehensive quantification of autoignition based combustion regimes and the transition from conventional turbulent flames. Specifically, the role of fuel chemistry and turbulent mixing as part of two-stage ignition events will be quantified. The project will deliver a comprehensive understanding of the transition between conventional and autoignited combustion under conditions of relevance to practical devices.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 11, 2021
- Source ID
- FA86552017045
Entities
People
- Rune Peter Lindstedt
Organizations
- Air Force Office of Scientific Research
- Imperial College London
- United States Air Force