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Fin-and-tube heat exchangers.

Scambiatori ad aletta continua.

Author(s) : LOZZA G., MERLO U.

Type of article: Article

Summary

Test results discussed are relative to 15 coil prototypes, having the same tube and fin geometry (25 x 21.65 mm staggered 5/8" tube banks, 2 mm fin spacing) but different fin surface geometry, from flat to wavy to louvered to "winglet". Different rates of heat transfer and pressure loss enhancement were obtained, also depending on the quality of the pressing process. General approaches to evaluate the positive features of one fin design with respect to another one provided questionable results: pressure loss influence on the air flow cannot be properly evaluated unless the actual fan head curve and the coil dimensions (front area and rows number) are stipulated.

Details

  • Original title: Scambiatori ad aletta continua.
  • Record ID : 2003-0139
  • Languages: Italian
  • Source: Industria italiana del Freddo - vol. 56 - n. 2
  • Publication date: 2002/04
  • Document available for consultation in the library of the IIR headquarters only.

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