The increased demand for fuel conservation has provided the impetus for higher efficiency in the design of gas turbines and their operation. To conserve more fuel, regenerators must operate at higher temperatures and pressures, and must experience frequent on-off cycles. The design concept, methodology, and full-scale testing leading to the final design of the regenerator will be presented. Particular emphasis will be given to the importance of meaningful testing of both the regenerator and materials used. The necessity of having materials data, in the as-processed condition versus catalog data, for reliable design, is also presented.

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