Exergy conservation in parallel thermal insulation systems

This paper is a Second-Law study of thermal insulation systems consisting of two 1-dim. insulations in parallel. It is shown that the parallel-insulation model applies to power and refrigeration systems exposed to large absolute temperature ratios. The insulation design which conserves maximum exergy (available work) is determined for two classes of parallel-insulation systems: in one class, the two parallel insulations are cooled continuously by two streams, in the other class they are cooled partly (intermittently) by one stream of single-phase fluid. The study shows that, in contradiction to previously published results, the continuous-cooling method is thermodynamically superior to the partial-cooling method. © 1983.

Duke Authors

Cited Authors

  • Schultz, W; Bejan, A

Published Date

  • 1983

Published In

Volume / Issue

  • 26 / 3

Start / End Page

  • 335 - 340

International Standard Serial Number (ISSN)

  • 0017-9310

Citation Source

  • SciVal