(10) Combustion Chamber. The combustion chamber, Figure 122, is
designed to burn a mixture of fuel and air, and to deliver the resulting gases
to the turbine at a temperature that will not exceed the allowable limits at
the turbine inlet. The chamber, within a very limited space, must add
sufficient heat energy to the gases passing through the engine. This
accelerates their mass enough to produce the desired power for the turbine
section. Combustion chambers are built in a number of different designs. The
construction is such that less than onethird of the total volume of air
entering the chamber is permitted to mix with the fuel. The remaining air is
used downstream to cool the combustor surfaces, and to mix with and cool the
burned gases before they enter the turbines.
Figure 122. Combustion Chamber.
33
OD0610
Previous Page
