| 摘要 |
A compressed air with or without water droplets in mist form and additional pure oxygen is passed over the radially exterior hot surfaces of an expansion nozzle having a L/D ratio of at least 3-to-1 and preferably surrounded by thermal insulation to enhance regenerative heat exchange between the expansion nozzle and the compressed air stream, as well as regenerative heat exchange with the exterior of a combustion chamber wall of an internal burner, also surrounded by thermal insulation prior to the compressed air entering the combustion chamber for ignition with a mixture of fuel. This permits large operating economics to be realized, reducing the need for expensive pure oxygen as the oxidant and permits the elimination of forced cooling by confined water flow for such internal burners.
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