Chapter 8
The ‘Regenerator Problem’


The so-called ‘regenerator problem’ is a description, in mathematical form, of an idealized perception of regenerator operation. The description is emphatically not a faithful representation of actual conditions. On the other hand, it aims to capture the essence. The resulting stylized representation may be called the ‘canonical’ form, and the insight sought through its solution is the temperature—time history of fluid and matrix at all locations in both, and over as many cycles as it takes to achieve cyclic equilibrium.

A solution at this level may be expected to point the way to dealing with a problem description more closely resembling actual conditions. This is the justification for the considerable effort of cracking the canonical problem.

  • 8.1 What regenerator problem?
  • 8.2 Early part-solutions
  • 8.3 The makings of cycle analysis
  • 8.4 The advent of computer simulation
  • 8.5 A first fluid particle trajectory map
  • 8.6 Lateral thinking
  • 8.7 Air versus helium versus hydrogen

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