Abstract
We studied a lean propane-butane-air mixture ascending through a round hole of 10-mm diameter, covered by a brass mesh as a single element of the multicellular flame. Gas temperature was measured by the CARS method (Coherent anti-Stokes Raman Scattering) with original software for spectra processing. The vertical and horizontal velocity components were measured by the PIV method (Particle Image Velocimetry). Distributions of heat release intensity and heat fluxes, which cannot be obtained in direct measurements, were estimated using balance relationships in the energy equation. The results were compared with the data obtained for the rich mixture flame in experiments with the same burner. Convective and molecular heat fluxes were considered separately. It was shown that when the rich air mixture with propane-butane burns, the heat flux caused by thermal conductivity reach a maximum at the center of the heat-release zone. Their intensity is substantially lower in comparison with the convective fluxes behind the flame front, which in turn are almost twice as weak as the convective flux in the flame of a lean mixture. The maximal intensities of heat release in the flame of a rich mixture are lower than in the lean one.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
H.W. Coleman, R.J. Moffat, and W.M. Kayes, Momentum and energy transport in the accelerated fully rough turbulent boundary layer, Thermosc. Div., Mech. Engng Dept., Stanford University, 1976, Report No. HMT-24.
E.P. Volchkov, V.I. Terekhov, and V.V. Terekhov, Flow structure and heat and mass transfer in boundary layers with injection of chemically reacting substances (review), Combustion, Explosion and Shock Waves, 2004, Vol. 40, No. 1, P. 3–20.
E.P. Volchkov, N.A. Dvornikov, and L.N. Perepechko, Comparison of different methods of modeling turbulent combustion in a boundary layer, Combustion, Explosion and Shock Waves, 1996, Vol. 32, No. 4, P. 390–394.
L. Orloff, A.T. Modak, and R.L. Alpert, Burning of large-scale vertical surfaces, 16th Symp. (Int.) on Combustion, Comb. Inst., 1976, Vol. 16, No. 1, P. 1345–1354.
P.J. Paul, H.S. Mukunda, and V.K Jain, Regression rates in boundary layer combustion, 19th Symp. (Int.) on Combustion, Comb. Inst., 1982, Vol. 19, No. 1, P. 717–729.
A.V. Singh and M.J. Gollner, A methodology for estimation of local heat fluxes in steady laminar boundary layer diffusion flames, Combustion and Flame, 2015, Vol. 162, P. 2214–2230.
E.P. Volchkov, Near-Wall Gas Cooling, Nauka, Novosibirsk, 1983.
V. Ali, V. Raghavan, and S. Tiwari, A study of steady laminar diffusion flame over methanol pool surface, Int. J. Heat Mass Transfer, 2010, Vol. 53, P. 4696–4706.
B.F. Boyarshinov, V.I. Titkov, and S.Yu. Fedorov, Momentum transfer in the boundary layer when there is acceleration and combustion of ethanol as it evaporates behind a barrier, Combustion and Flame, 2010, Vol. 157, P. 1496–1509.
B.F. Boyarshinov and S.Yu. Fedorov, Heat and mass transfer and stabilization of combustion in the boundary layer behind a rib and a backward-facing step, Combustion, Explosion, and Shock Waves, 2013, Vol. 49, No. 5, P. 507–511.
C.E. Wooldridge and R.J. Muzzy, Measurements in a turbulent boundary layer with porous wall injection and combustion, Tenth Symp. (Intern.) on Combustion, Pittsburg, The Combustion Institute, 1965, Vol. 10, No. 1, P. 1351–1362.
E.P. Volchkov, V.I. Terekhov, and V.V. Terekhov, Boundary-layer structure with hydrogen combustion with different injection intensities, Combustion, Explosion and Shock Waves, 2002, Vol. 38, No. 3, P. 269–277.
V.V. Lukashov, V.V. Terekhov, and K. Hanjalić, Heat exchange in boundary layer on permeable plate at injection and combustion, Thermophysics and Aeromechanics, 2013, Vol. 20, No. 6, P. 687–694.
B.F. Boyarshinov, Experimental investigation of the limits of ethanol combustion in the boundary layer behind an obstacle, Thermophysics and Aeromechanics, 2018, Vol. 25, No. 1, P. 47–54.
R.Kh. Abdrakhmanov and B.F. Boyarshinov, Experimental study of a cellular ethanol flame evaporating “on the ceiling”, Combustion, Explosion and Shock Waves, 2018, Vol. 54, No. 1, P. 1–8.
Turbulent reacting flows, P.A. Libby, F.A. Williams (Eds.), Springer-Verlag, 1980.
D. Bradly, How fast can we burn?, in: 24th Symp. Int. on Comb., 1992, P. 247–262.
C.J. Sung, J.B. Liu, and C.K Law, Structural response of counterflow diffusion flames to strain rate variations, Combustion and Flame, 1995, Vol. 102, P. 481–492.
J.L. De Ris and L. Orloff, Flame heat transfer between parallel panels, 8th Symp. (Int.) On Fire Safety Science, Proceedings, 2005, P. 999–1010.
C.K. Law and C.J. Sung, Structure, aerodynamics, and geometry of premixed flamelets, Progress in Energy and Combustion Sci., 2000, Vol. 26, P. 459–505.
C.K. Law, Combustion Physics, Cambridge University Press, 2006.
R.Kh. Abdrakhmanov, B.F. Boyarshinov, and S.Yu. Fedorov, Investigation of the local parameters of a cellular propane/butane/air flame, Int. J. Heat Mass Transfer, 2017, Vol. 109, P. 1172–1180.
M. Stöhr, K. Oberleithner, C.M. Arndt, A.M. Steinberg, and W. Meier, Experimental study of transient coupling of PVC formation and flame shape transition in a bi-stable turbulent swirl flame, in: Proc. European Combustion Meeting, 2015.
O.V. Sharypov, Introduction to Combustion Physics: Textbook, NSU, Novosibirsk, 2010.
A.G. Istratov, N.I. Kidin, and A.V. Fedorov, Cellular and tulip flame configurations, J. Appl. Mech. Tech. Phys., 2003, Vol. 44, No. 3, P. 395–399.
X. Shena, X. Heb, and J. Sunc, A comparative study on premixed hydrogen-air and propane-air flame propagations with tulip distortion in a closed duct, Fuel, 2015, Vol. 161, P. 248–253.
Certificate No. 2017616085 on the Computer Program CARSspectra v.02. Priority of February 21, 2017. Author: S.Yu. Fedorov, Rightholder: IT SB RAS.
A.N. Lipatnikov and J. Chomiak, Effects of premixed flames on turbulence and turbulent scalar transport, Prog. Energy Combust. Sci., 2010, Vol. 36, P. 1–102.
B.F. Boyarshinov, Investigation of momentum and mass transfer in the turbulent boundary layer with ethanol combustion behind a barrier, S.M. Frolov (Ed.), Nonequilibrium Processes in Plasma, Combustion, and Atmosphere, Torus Press Ltd., Moscow, 2012, P. 221–227.
S.I. Isaev, I.A. Kozhinov, V.I. Kofanov, A.I. Leontyev, B.M. Mironov, V.M. Nikitin, G.B. Petrazhitsky, M.S. Samoilov, V.I. Khvostov, and E.V. Shishov, Theory of Heat and Mass Transfer, A.I. Leontiev (Ed.), Vysshaya Shkola, Moscow, 1979.
Author information
Authors and Affiliations
Corresponding author
Additional information
The work was financially supported by FASO and RFBR (Project No. 18-03-00282).
Rights and permissions
About this article
Cite this article
Boyarshinov, B.F., Fedorov, S.Y. & Abdrakhmanov, R.K. Experimental investigation of structure and heat transfer in cellular flame of rich and lean propane-butane-air mixtures. Thermophys. Aeromech. 26, 79–88 (2019). https://doi.org/10.1134/S0869864319010086
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0869864319010086