A103 AN EXPERIMENTAL STUDY ON INTERNAL HYDROGEN REHEAT GAS TURBINE AND COMBUSTION CHARACTERISTICS IN REHEAT PROCESS(Nuclear power-1/combustion)

概要

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An experimental single stage gas turbine demonstrated the concept of an internal hydrogen reheat gas turbine, in which hydrogen was discharged from the trailing edges of the nozzle vanes into the turbine passage in order to reheat the working gas. A series of experiments indicated increments in output power due to the reheat process. Combustion characteristics of the reheat process were experimentally investigated in a high temperature wind tunnel with hydrogen combustion gas stream. Almost complete combustion efficiencies of the hydrogen discharged for the reheat were achieved. The emission index of NOx in the reheat process by discharging hydrogen increased along with the inlet temperature but it was much lower than that of the main combustor and that of reheat with mixture of methane with 20% hydrogen. The ratio of NO to NOx was lessened by the reheat process and it was lower at a lower inlet temperature of the reheat section.
一般社団法人日本機械学会の論文
2000-10-01