Supplementary Firing of Gas Turbine Exhaust Systems Free

Several factors require consideration in designing the most effective supplementary fired waste-heat recovery system. Among the problems for which solutions must be found are temperature profile going into the waste-heat recovery unit, flame length and stability, effect of laminar flow characteristics of exhaust streams, effects of radiation on exhaust temperature profiles, exhaust-duct velocity limitations, and the adverse effects of flame impingement on the waste-heat recovery equipment. The results obtained from a series of tests to determine the optimum system design are described briefly.