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Show p-A-| , A^ AA 4 A A A " A a 1,4 1,8 2,2 2,6 3,0 3,4 3,8 4,2 4,6 a Figure 5. LOCAL NOx VOLUME CONCENTRATION IN COMBUSTION GASES OF THE COMBUSTION CHAMBER VERSUS LOCAL EXCESS AIR: t7a=25-28m/s, 7'a=573K,P~0.1MPa, As the advantages of the proposed combustion chamber, the followings may be indicated. design of the chamber easily provides with any temperature distribution both along the chamber and at its outlet cross-section. This facilitates maintaining the safe wall cooling. Owing to the straight-flow-type design, the combustion chamber process low hydraulic resistance. It makes possible, for instance, to considerably decrease a specific fuel flow rate in gas turbine engines with non-cooled turbines. It makes possible to abandon fans forcing air into combustion chamber. In drum kilns of asphalt and concrete-mixing plants and etc. The required air flow rate is ensured through rarefaction in the kiln made by flue-gas pump. The use of the combustion chambers of this type in asphalt and concrete-mixing plants capacity up to 10 M W allowed to considerably, up to 50%, decrease a fuel flow rate. This is due to the separation of the fuel combustion and material warming-up processes. Because of high thermal-power density of the combustion chamber and uniform temperature field of the flow at the outlet cross-section of the chamber, their use in the brick and ceramic kilns allowed to completely eliminate flaws due to hot-spotting. CONCLUSIONS Experiments and calculations evidenced that diffusion straight-flow-type of the combustion chamber operating on evaporated or gaseous fuel holds much promise. The combustion chamber installations with the capacity ranging from 18 k W to 10 M W were devised. The combustion chamber tests showed good operating characteristics and low emission rate of CO and NOx The use of the combustion chambers in some industries (brick plants, asphalt and concrete-mixing plants) displayed 7 |