Simulation of combustion characteristics in a hydrogen fuelled lean single-element direct injection combustor. (2nd February 2017)

• Record Type: Journal Article
• Authors: Li, Jianzhong; Yuan, Li; Mongia, Hukam C.
• Is Part Of: International journal of hydrogen energy. Volume 42:Number 5(2017)
• Page Start: 3536
• Page End: 3548
• Publication Date: 2017-02-02
• Subjects: Gas turbine engine -- Lean direct injection -- Low emissions combustion; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2016.10.159
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: Combustion characteristics in a hydrogen fuelled single-element lean direct injection (LDI) combustor for low emission gas turbine engine are computationally investigated. A single-element LDI combustor was produced and simulated with steady-state Reynolds-averaged Navier–Stokes reacting computations. Reacting computations of the single-element LDI combustor were performed with an augmented reduced 23-step reaction mechanism for hydrogen/air. A realizable k − ε model was used to obtain turbulence closure. For the single-element LDI combustor with different equivalence ratio, the effective area, axial velocity, total pressure drop coefficient, total temperature, mass fraction of OH, emission index of pollutant NO (EINO ) were achieved and discussed. Highlights: Combustion characteristics in a hydrogen fuelled single-element lean direct injection (LDI) combustor are computationally investigated. Reacting computations of single-element LDI combustor were performed with an augmented reduced 23-step reaction mechanism for hydrogen/air. Effective area, velocity, pressure drop, temperature, mass fraction of OH, EINO and lean blowout of LDI with equivalence ratio were discussed.