Heat flow in the combustion chamber
Gas turbine cooling. Combustion chamber

The evaluation of heat flows on the wall of a combustion chamber can be carried out in a similar way to that of the blades (cf. ).

Figure 1 shows the heat flows acting on the chamber wall. Those entering are due to radiation R₁ and hot gas convection C₁, while the outer side of the wall yields heat flow to the convective cooling system C₂, by radiation R₂ towards the envelope due to the large surfaces involved and the low value of the outer wall temperatures. Heat exchange between the two faces of the wall K_{1 – 2} is of the conductive type. The geometric characteristics of the wall, with its large surface area and reduced thickness, mean that conduction can be considered a one-dimensional process, and we can therefore write [1]: