For the thermal regenerator having high thermal capacity ratio an intuitive approach defines the fluid temperature envelope with a minimum of algebra. An expression for temperature recovery ratio follows. This is checked against the specification and operating conditions of the MP-1002CA air engine. The new formulation is the basis for an analytical statement of the regenerator operating at the optimum balance between pumping loss and penalty of incomplete temperature recovery.
OrganA. J.The Regenerator and the Stirling Engine, 1997 (Mechanical Engineering Publications, London).
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OrganA. J.Understanding the Stirling regenerator. Proc. Instn Mech. Engrs, Part C, Journal of Mechanical Engineering Science, 2000 (under review).
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OrganA. J. In praise of Robert Stirling. Invited Lecture, Stirling Symposium, Kew Bridge Steam Museum, 20 July 2000. Under review, Proceedings of Newcomen Society 2000. Copies available from the author at allan_j_organ@talk21.com.
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OrganA. J.Stirling's air engine—a thermodynamic appreciation. Proc. Instn Mech. Engrs, Part C, Journal of Mechanical Engineering Science, 2000, 214(C4), 511–536.
