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Which constraint dominates when maximizing efficiency in a regenerative gas turbine cycle?

A)Turbine blade creep
B)Heat exchanger effectiveness
C)Compressor surge margin
D)Fuel injector clogging

💡 Explanation

A lower temperature differential within the recuperator imposes strict recuperator size restrictions, which reduces effectiveness because incomplete heat transfer diminishes the regenerative cycle's efficiency; therefore B, rather than blade failure, stalling, etc., dominates because temperatures are somewhat less extreme.

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