Share

IIR document

Experimental assessment of flow distributors for falling-films over horizontal tube banks.

Author(s) : BUSTAMANTE J. G., GARIMELLA S.

Type of article: Article, IJR article

Summary

Flow distributors are designed to evenly spread fluid along the length of horizontal tube banks used in falling-film heat and mass transfer components. This study comparatively assesses the performance of eight distributor designs described in previous studies under uniform conditions: water at 20°C and atmospheric pressure with a distribution length of 203?mm over a film Reynolds number range of 12–495. Flow regimes from the droplet to sheet regime were observed, and the levels of maldistribution were quantified using a simple segmented collection system. Droplet and jet characteristics were measured using image analysis of high-speed video, with droplet volumes ranging from 20?mm3 to 540?mm3 and jet diameters ranging from 1.2?mm to 4?mm. Overall, the box-based distributor designs outperformed the tube-based distributors, but maldistribution was significant (>50%) for some flow rates in all the tested designs.

Available documents

Format PDF

Pages: 24-33

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Experimental assessment of flow distributors for falling-films over horizontal tube banks.
  • Record ID : 30025730
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 101
  • Publication date: 2019/05
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2019.02.025

Links


See other articles in this issue (17)
See the source

Indexing