Experimental Study of Non-Premixed Flames of Liquefied Petroleum Gas and Air in Cross-Flow and the Effects of Fuel Properties on Flame Stability
-
S. Muthu Kumaran
Abstract
Stability of flames are affected by fuel properties, geometry of the burner and operating conditions. In this experimental work, first the characteristics of non-premixed flames of Liquefied Petroleum Gas (LPG) and air in cross-flow configuration, where air jet flows perpendicular to the fuel stream, are studied experimentally. Flame transition and stability regimes of non-premixed flames of LPG and air, in a cross-flow burner without and with obstacles, are determined by systematically varying the fuel and air flow rates. Obstacles such as backward facing step and cylindrical bluff bodies are considered. Subsequently, the effects of fuel properties on the stability of flames are analyzed, Flame stability regimes of natural gas (methane) and biogas (methane and carbon-dioxide), measured from a similar burner are available in literature. These have been compared with the stability of LPG flames in terms of power rating of the burner and global equivalence ratio (defined for non-premixed flames).
References
1. Nicholson HM, Field JP. Some experimental techniques for the investigation of the mechanism of flame stabilization in the wakes of bluff bodies. Symp Combust Flame Explosion Phenom. 1948;3:44–68.10.1016/S1062-2896(49)80008-0Suche in Google Scholar
2. Hirano T, Kanno Y. Aerodynamic and thermal structures of the laminar Boundary layer over a flat plate with a Diffusion flame. Symp (Int) Combust. 1973;14:391–8.10.1016/S0082-0784(73)80038-4Suche in Google Scholar
3. Kundu KM, Banerjee D, Bhaduri D. Mathematical modelling of flows in bluff-body flame stabilizers. Appl Math Model. 1977;1:276–80.10.1016/0307-904X(77)90021-XSuche in Google Scholar
4. Ramachandra A, Raghunandan BN. Investigations on the stability and extinction of a laminar diffusion flame over a porous flat plate. Combust Sci Technol. 1984;36:109–21.10.1080/00102208408923728Suche in Google Scholar
5. Rohmat TA, Katoh H, Obara T, Yoshihashi T, Ohyagi S. Diffusion flame stabilized on a porous plate in a parallel airstream. Aiaa J. 1998;36:1945–52.10.2514/2.300Suche in Google Scholar
6. Huang RF, Chang JM. The stability and visualized flame and flow structures of a combusting jet in cross flow. Combust Flame. 1994;98:267–72.10.1016/0010-2180(94)90241-0Suche in Google Scholar
7. Torero JL, Bonneau L, Most JM, Joulain P. On the geometry of laminar diffusion flame established over a flat plate burner. Adv Space Res. 1995;16:149–52.10.1016/0273-1177(95)00150-DSuche in Google Scholar
8. Lavid M, Berlad AL. Gravitational effects on chemically reacting laminar boundary layer flows over a horizontal flat plate. Symp (Int) Combust. 1997;16:1557–68.10.1016/S0082-0784(77)80436-0Suche in Google Scholar
9. Chen CY, Chang CC, Pan KL, Yang JT. Flame lift-off and stabilization mechanisms of nonpremixed jet flames on a bluff-body burner. Combust Flame. 1998;115:51–65.10.1016/S0010-2180(97)00336-2Suche in Google Scholar
10. Shijin PK, Babu A, Raghavan V. Experimental study of bluff body stabilized laminar reactive boundary layers. Int J Heat Mass Transfer. 2016;102:219–55.10.1016/j.ijheatmasstransfer.2016.06.028Suche in Google Scholar
11. Harish A, Rakesh Ranga HR, Babu A, Raghavan V. Experimental study of flame characteristics and stability regimes of biogas – Air cross flow non-premixed flames. Fuel. 2018;223:334–43.10.1016/j.fuel.2018.03.055Suche in Google Scholar
12. Mishra DP, Kannan R. An experimental study of lean premixed combustor. Int J Turbo Jet Engines. 2003;20:245–53.10.1515/TJJ.2003.20.3.245Suche in Google Scholar
13. Mishra DP. Experimental studies of low emission vortex burner. Int J Turbo Jet Engines. 2008;25:27–35.10.1515/TJJ.2008.25.1.27Suche in Google Scholar
© 2019 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Original Research Articles
- Robust Fault Identification of Turbofan Engines Sensors Based on Fractional-Order Integral Sliding Mode Observer
- A new compilation method of general standard test load spectrum for aircraft engine
- Numerical Investigation on the Effects of Vortex Generator Locations on Film Cooling Performance
- The Effect of the Circumferential Position of Duct Hole on the Non-uniformity in the Axial Compressor
- Surplus Power Approach to Diagnose Gas Turbine Engine Starting Characteristics
- A Flow Dynamic Characteristic Analysis of A Single Radial Swirler Combustor
- Investigation on the Jet Stiffness Characteristics of a Novel Plasma Igniter
- Investigations of Combustor Inlet Swirl on the Liner Wall Temperature in an Aero Engine Combustor
- Multidisciplinary Design Optimization of the Composite Cooling Structure for Nickel-based Alloy Turbine Blade
- Experimental Study of Non-Premixed Flames of Liquefied Petroleum Gas and Air in Cross-Flow and the Effects of Fuel Properties on Flame Stability
Artikel in diesem Heft
- Frontmatter
- Original Research Articles
- Robust Fault Identification of Turbofan Engines Sensors Based on Fractional-Order Integral Sliding Mode Observer
- A new compilation method of general standard test load spectrum for aircraft engine
- Numerical Investigation on the Effects of Vortex Generator Locations on Film Cooling Performance
- The Effect of the Circumferential Position of Duct Hole on the Non-uniformity in the Axial Compressor
- Surplus Power Approach to Diagnose Gas Turbine Engine Starting Characteristics
- A Flow Dynamic Characteristic Analysis of A Single Radial Swirler Combustor
- Investigation on the Jet Stiffness Characteristics of a Novel Plasma Igniter
- Investigations of Combustor Inlet Swirl on the Liner Wall Temperature in an Aero Engine Combustor
- Multidisciplinary Design Optimization of the Composite Cooling Structure for Nickel-based Alloy Turbine Blade
- Experimental Study of Non-Premixed Flames of Liquefied Petroleum Gas and Air in Cross-Flow and the Effects of Fuel Properties on Flame Stability
