Enhancing Thermal Performance Investigations of a Methane-Fueled Planar Micro-Combustor with a Counter-Flow Flame Configuration DOI Creative Commons
Liaoliao Li, Yuze Sun, Xinyu Huang

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(1), P. 195 - 195

Published: Jan. 5, 2025

To enhance the performance of combustors in micro thermophotovoltaic systems, this study employs numerical simulations to investigate a planar microscale combustor featuring counter-flow flame configuration. The analysis begins with an evaluation effects (1) equivalence ratio Φ and (2) inlet flow rate Vi on key thermal combustion parameters, including average temperature main wall (T¯w), non-uniformity (R¯Tw) radiation efficiency (ηr). findings indicate that increasing causes these parameters initially increase subsequently decrease. Similarly, leads monotonic decline ηr, while T¯w R¯Tw exhibit rise-then-fall trend. A comparative between proposed conventional reveals that, under identical conditions, use counterflow configuration can reducing R¯Tw. Nusselt number shows micro-combustor achieves larger area positive numbers higher numbers, which highlights improved heat transfer from fluid solid. Furthermore, comparison blow-off limits exhibits superior stability broader flammability range. Overall, provides preliminary investigation into configurations combustors.

Language: Английский

Enhancing Thermal Performance Investigations of a Methane-Fueled Planar Micro-Combustor with a Counter-Flow Flame Configuration DOI Creative Commons
Liaoliao Li, Yuze Sun, Xinyu Huang

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(1), P. 195 - 195

Published: Jan. 5, 2025

To enhance the performance of combustors in micro thermophotovoltaic systems, this study employs numerical simulations to investigate a planar microscale combustor featuring counter-flow flame configuration. The analysis begins with an evaluation effects (1) equivalence ratio Φ and (2) inlet flow rate Vi on key thermal combustion parameters, including average temperature main wall (T¯w), non-uniformity (R¯Tw) radiation efficiency (ηr). findings indicate that increasing causes these parameters initially increase subsequently decrease. Similarly, leads monotonic decline ηr, while T¯w R¯Tw exhibit rise-then-fall trend. A comparative between proposed conventional reveals that, under identical conditions, use counterflow configuration can reducing R¯Tw. Nusselt number shows micro-combustor achieves larger area positive numbers higher numbers, which highlights improved heat transfer from fluid solid. Furthermore, comparison blow-off limits exhibits superior stability broader flammability range. Overall, provides preliminary investigation into configurations combustors.

Language: Английский

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