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Regenerative heat exchangers with significant entrained fluid heat capacity.

Author(s) : NELLIS G. F., KLEIN S. A.

Type of article: Article

Summary

Entrained fluid heat capacity is shown to have a significant and positive effect on the performance of a passive regenerator. The ineffectiveness of the regenerator is presented as a function of three dimensionless parameters: the number of transfer units, the utilization, and the entrained fluid to matrix heat capacity ratio. Three different behaviours are observed for a regenerator with entrained fluid heat capacity. The effect of the entrained fluid can be accounted for over a large range of conditions using the concept of an augmented-NTU which can be substituted for the actual NTU in analyses that neglect entrained fluid capacity. [Reprinted with permission from Elsevier. Copyright, 2005].

Details

  • Original title: Regenerative heat exchangers with significant entrained fluid heat capacity.
  • Record ID : 2006-2156
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 49 - n. 1-2
  • Publication date: 2006/01

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