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A recuperator differs from a regenerator in that the two streams are

  • A.at the same temperature throughout
  • B.separated by a wall and flow continuously
  • C.brought into direct contact with one another
  • D.passed alternately through the same matrix

Answer: B

A recuperator is a continuous heat exchanger with a dividing wall; a regenerator stores heat in a matrix that the hot and cold streams pass through in turn. The second recovers more but allows some carry-over between the streams.

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