This report describes a comprehensive experimental investigation of a gas turbine combustion system incorporating a porous, transpiration-cooled flame tube. The effectiveness of this system of cooling is demonstrated and the general performance of the chamber reported. From the observations of distributions of pressure and temperature, and hence coolant flows, heat fluxes are derived and compared with theoretical predictions. On the basis of these comparisons a design method is proposed for advanced combustion systems in which transpiration cooling can be employed to reduce cooling air requirements by a factor of four compared with conventional systems.
Get full access to this article
View all access options for this article.
References
1.
BayleyF.J.CornforthJ.W.TurnerA.B.‘Experiments on a transpiration cooled combustion chamber’. Proc. I. Mech. E.Vol.187, 1973.
2.
BayleyF.J.TurnerA.B.‘The heat transfer performance of porous gas turbine blades’. Aero. Jnl. R.Ae.S.Vol.72, 1968.
3.
GrootenhuisP.PowellR.W.TyeR.P.‘Thermal and electrical conductivity of porous metals made by powder metallurgy techniques’. Proc. Phys. Soc.Vol.658, 1952.
