Further studies of combustion phenomena in a spherical combustor

Clarke, A.E.; Odgers, J.; Ryan, Philip

doi:10.1016/s0082-0784(06)80594-1

Cited by 14 publications

(5 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All the experimental conditions of the spherical combustors are atmospheric and/or subatmospheric [14,15,16,17,18,19,20] loading parameter is based on the assumtion that the system is adiabatic and controlled by purely chemical reaction rate. As the pressure increases, it may give an increased deviation from the previous assumptions, probably due to the dynamic flow effect as indeed, some investigators have suggested [15,16] and also to heat removal effects due to the high density flow.…”

Section: Discussionmentioning

confidence: 99%

Combustion Instability of a Gas Turbine Combustor up to 50-Atmosphere Condition

Tamaru¹,

Shimodaira²,

Kurosawa³

et al. 1986

Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations

View full text Add to dashboard Cite

Combustion instabilities or blow-off phenomena at high pressure conditions were investigated on practical can-type combustion chambers. An air loading parameter, ma/VP2 at constant inlet temperature, was used to evaluate the allowable air flow rate in the combustion chamber. It was found that the pressure dependency of the parameter was not adequate for the high pressure conditions. It is revealed that the blow-off velocity in the flame holding region is related to the maximum laminar burning velocity corresponding to the pressure and temperature and that the velocity in the primary zone must be a very small value at high pressure condition.

show abstract

Section: Discussionmentioning

confidence: 99%

Combustion Instability of a Gas Turbine Combustor up to 50-Atmosphere Condition

Tamaru¹,

Shimodaira²,

Kurosawa³

et al. 1986

Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations

View full text Add to dashboard Cite

show abstract

“…(10) can be written, (11) Thus, A does not have to be described explicitly. A typical value for E is 26,613 gm.cal./gm.mole, for near-stoichiometric mixtures (Clarke et al, 1960).…”

Section: Simulation Techniquementioning

confidence: 99%

“…Various global Arrhenius rate expressions have been published in the literature to represent propane/air combustion at different conditions, e.g., Greenhough and Lefebvre (1956), Clarke et al (1960) and Herbert (1960). One that is more appropriate for low equivalence ratios (around 0.5) is given by, _ Am° 5mo.5PT-0.5 exp(-56,600/%T) This has the form of Eq.…”

Section: Need For Calibrationmentioning

confidence: 99%

Lean Blowout in a Research Combustor at Simulated Low Pressures

Sturgess

Heneghan

Vangsness

et al. 1991

Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations

View full text Add to dashboard Cite

A propane-fueled research combustor has been designed to represent the essential features of primary zones of combustors for aircraft gas turbine engines in an investigation of lean blowouts. The atmospheric pressure test facility being used for the investigation made it difficult to directly approach the maximum heat release condition of the research combustor. High combustor loadings were achieved through simulating the effects on chemical reaction rates of sub-atmospheric pressures by means of a nitrogen diluent technique. A calibration procedure is described, and correlated experimental lean blowout results are compared with well-stirred reactor calculations for the research combustor to confirm the efficacy of the calibration.

show abstract

“…Anon [4] explored skew and dispersion of a spray cone (sometimes caused by internal flow leakage of the nozzle). In their stirring reactor or burner, Longwell and Weiss [5][6][7] studied the relying relationship of combustion reaction rate with pressures. Burgoyne, Cohen et al [8][9][10][11][12] observed the flame propagation through non-uniform fuel-air mixture.…”

Section: Introductionmentioning

confidence: 99%

Evidential Study of Relationship between Flexible Drift of Fuel Nozzle Performance and Hot-End Failure of X Engine

Wang

2014

AMM

View full text Add to dashboard Cite

By means of the fountain-convergence analysis method of FRRU (Flow Resistance-Rigidity Uniformity) index defined by the author, evidential comparison analysis study has been made to the relationship between flexible drift of flow performance of WTD (Weight Type Distributor) valves of fuel nozzles of X engine and hot-end failures of X engine. The results show that during the initial period of engine start, because of the relative scarcity of air in the combustor, a convergence characteristic, due to its converging flow property ofmultiple to one, can lead to such hot-end failures as turbine blade fusion break which is characterized byabrupt change, while a fountain characteristic, due to its diffusing flow property ofone tomultiple, cannot result in any hot-end failures.

show abstract

Further studies of combustion phenomena in a spherical combustor

Cited by 14 publications

References 2 publications

Combustion Instability of a Gas Turbine Combustor up to 50-Atmosphere Condition

Combustion Instability of a Gas Turbine Combustor up to 50-Atmosphere Condition

Lean Blowout in a Research Combustor at Simulated Low Pressures

Evidential Study of Relationship between Flexible Drift of Fuel Nozzle Performance and Hot-End Failure of X Engine

Contact Info

Product

Resources

About