Experimental investigation of flame stabilization inside the quarl of an oxyfuel swirl burner

Becker, Lukas; Kosaka, Hirofumi; Böhm, Benjamin; Doost, Samim; Knappstein, Robert; Habermehl, Martin; Kneer, Reinhold; Janicka, J.; Dreizler, Andreas

doi:10.1016/j.fuel.2016.09.002

Cited by 55 publications

(33 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The test rig was designed to investigate gas flames and gas-assisted coal/biomass flames operating in both air and oxy-fuel conditions. This setup has been thoroughly investigated both experimentally [46,47,[52][53][54][55] and numerically [56,57]. The fuel employed in the referenced studies, as well as in the present one, is methane.…”

Section: Oxy-fuel Combustor and Residence Time Distribution Measurementsmentioning

confidence: 99%

See 1 more Smart Citation

Investigation of Oxy-Fuel Combustion through Reactor Network and Residence Time Data

et al. 2021

Self Cite

View full text Add to dashboard Cite

Oxy-fuel combustion is a promising strategy to minimize the environmental impact of combustion-based energy conversion. Simple and flexible tools are required to facilitate the successful integration of such strategies at the industrial level. This study couples measured residence time distribution with chemical reactor network analysis in a close-to-reality combustor. This provides detailed knowledge about the various mixing and reactive characteristics arising from the use of the two different oxidizing streams.

show abstract

Section: Oxy-fuel Combustor and Residence Time Distribution Measurementsmentioning

confidence: 99%

“…Data below reproduced with permission from ref. [52], 2017, Elsevier. An outer orifice comprising straight and inclined channels delivers a swirled flow of oxidizer (secondary flow, II).…”

Section: Oxy-fuel Combustor and Residence Time Distribution Measurementsmentioning

confidence: 99%

Investigation of Oxy-Fuel Combustion through Reactor Network and Residence Time Data

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…This is because gas-assisted coal flames offer a suitable compromise between ensuring a clean environment for reliable laser-based diagnostics, while still capturing the major physics occurring in PCC. [35][36][37] In light of this, the Cambridge Coal Burner (CCB) configuration offers reliable experimental data on a novel gasassisted swirling coal flame. The burner has been characterised in detail experimentally by means of Laser doppler velocimetry (LDV) and high-speed stereo particle image velocimetry (PIV).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Gas-Assisted Pulverized Coal Combustion in Cambridge Coal Burner CCB1 Using FPV-LES

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Therefore, a good aerodynamic layout is the design basis of modern combustors. The development of modern highprecision noncontact measurement technology provides favorable support for the study of combustor aerodynamic performance and optimization of its performance [19][20][21][22][23][24][25][26][27]. Richards and Samuelsen found that the position of the primary holes is critical to combustion and proposed that the axial position of primary holes should be 0.5-1 times the diameter of the round pipe to achieve the best matching with the mainstream [28,29].…”

Section: Introductionmentioning

confidence: 99%

Flow Characteristics of a Rich-Quench-Lean Combustor-Combined Low-Emission and High-Temperature Rise Combustion

Chen

et al. 2019

International Journal of Aerospace Engineering

View full text Add to dashboard Cite

To determine the flow field structure and flow characteristics of a rich-quench-lean (RQL) combustor-combined low-emission and high-temperature rise combustion, a two-dimensional PIV technology was used to evaluate the effect of aerodynamic and structural parameters on the flow field and flow characteristics of the combustor. The variation in the total pressure loss of the combustor has little effect on the flow field structure of the combustor. However, the variation in the parameters of primary holes significantly affects the structure of the central recirculation zone, the distribution of local recirculation zones in the rich-burn zone and quenching zone, and the average residence time in the quenching zone. On the plane that passes through the center of the primary hole, the variations in the array mode and diameter of primary holes would form entrainment vortexes with different characteristics, thus affecting the position and flow state of local recirculation in the rich-burn zone and the local structure of the central recirculation zone. As the rotational direction of local recirculation coincides with that of the main air flow in the primary zone, the local center recirculation is intensified. In contrast, it is weakened. As the primary holes are located at half height (H/2) of the combustor, the residence time of air flow at the quenching zone can be shortened by 65% through using the staggered structure of primary holes and increasing the momentum of the partial single-hole jet. The quick-mixing process in the quenching zone is not beneficial to increase the number of primary holes and decrease the momentum of the single-hole jet.

show abstract

Experimental investigation of flame stabilization inside the quarl of an oxyfuel swirl burner

Cited by 55 publications

References 30 publications

Investigation of Oxy-Fuel Combustion through Reactor Network and Residence Time Data

Investigation of Oxy-Fuel Combustion through Reactor Network and Residence Time Data

Analysis of Gas-Assisted Pulverized Coal Combustion in Cambridge Coal Burner CCB1 Using FPV-LES

Flow Characteristics of a Rich-Quench-Lean Combustor-Combined Low-Emission and High-Temperature Rise Combustion

Contact Info

Product

Resources

About