Numerical Investigation of a Jet-Stabilized Combustion System Operated with Low-Calorific SOFC Off-Gas

Lingstädt, Timo; Drude, Aurelia; Grimm, Felix; Kutne, Peter; Aigner, Manfred

doi:10.2514/6.2019-1675

Cited by 2 publications

(3 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Heat transfer coefficients are extracted from this setup by assuming thermodynamic conditions inside the combustion chamber and in the ambient, while the combustor wall is explicitly modeled. Detailed results on this investigation can be found in [48].…”

Section: Modeling Theorymentioning

confidence: 99%

“…The combustion system has been optimized and further developed by Lingstädt et al [46][47][48][49]. Therefore, several aspects of the system development can be found in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…Figure 1. The low-calorific burner system, F20OG.1, with upstream heat generator system (solid oxide fuel cell (SOFC) emulator), combustion chamber components, and measurement techniques[48].…”

mentioning

confidence: 99%

See 2 more Smart Citations

Numerical and Experimental Study of a Jet-and-Recirculation Stabilized Low Calorific Combustor for a Hybrid Power Plant

et al. 2021

Self Cite

View full text Add to dashboard Cite

An atmospheric prototype burner is studied with numerical and experimental tools. The burner system is designed for operation in a hybrid power plant for decentralized energy conversion. In order to realize such a coupled system, a reliable combustion system has to be established. Numerical and experimental findings in the presented study demonstrate the capabilities of the novel burner system in suitable operation conditions. In this system, a solid oxide fuel cell (SOFC) is mounted upstream of the burner in the gas turbine system. The combination of both realizes a large operational flexibility with comparably high overall efficiency. Since the combustor is operated with SOFC off-gas, several challenges arise. Low calorific combustion needs careful burner design and numerical modeling, since the heat-loss mechanisms occur to be in the order of magnitude of thermal power output. Thus, different modeling strategies are discussed in the paper. The numerical studies are compared with experimental results and high-quality simulation results complement limited measured findings with easy-to-use low fidelity RANS models. A priori measurements are employed for the selection of investigation points. It is shown that the presented combustor system is able to cover low-calorific combustion over a large range of operation conditions, despite major heat-loss effects, which are characterized by means of numerical CFD (Computational Fluid Dynamics) modeling.

show abstract

Section: Modeling Theorymentioning

confidence: 99%

“…The combustion system has been optimized and further developed by Lingstädt et al [46][47][48][49]. Therefore, several aspects of the system development can be found in the literature.…”

Section: Introductionmentioning

confidence: 99%