Share

Comparison of correction factors for shell-and-tube heat exchangers with segmental or helical baffles.

Author(s) : STEHLIK P., NEMCANSKY J., KRAL D., SWANSON L. W.

Type of article: Article

Summary

Heat-transfer and pressure-drop correction factors based on the Bell-Delaware method were compared for an optimized segmental baffle heat exchanger and a helical baffle heat exchanger. In general, the results showed that properly designed helical baffles offer a significant improvement in heat transfer while providing a reduced exchanger pressure drop. The enhancement in heat transfer for helical baffles was reflected by the so-called turbulence enhancement correction factor, which accounted for the increase in heat transfer observed at a critical baffle inclination angle of 25 deg. The reduction in pressure drop due to the helical baffles was found to vary from 0.26 to 0.60, depending on the helical inclination angle.

Details

  • Original title: Comparison of correction factors for shell-and-tube heat exchangers with segmental or helical baffles.
  • Record ID : 1995-0844
  • Languages: English
  • Source: Heat Transf. Eng. - vol. 15 - n. 1
  • Publication date: 1994/01
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (1)
See the source

Indexing