Experimental investigation in the pressure drop characteristics of supercritical carbon dioxide in the uniformly heated horizontal miniature tubes

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Lei Wang
  • Yu Cheng Pan
  • Jin Der Lee
  • Yan Wang
  • Ben Ran Fu

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number104839
Journal / PublicationJournal of Supercritical Fluids
Volume162
Online published19 Mar 2020
Publication statusPublished - 1 Aug 2020

Abstract

This study investigates experimentally the pressure drop characteristics of supercritical carbon dioxide uniformly heated in horizontal circular smooth tubes. The results illustrate that channel pressure drop would be enlarged with increases in mass flux and inlet fluid temperature, while it would decrease with increases in outlet pressure and tube diameter. Frictional pressure drop is the most dominant contributor (51%–85%) for total pressure drop, while accelerational pressure drop, up to 28%, and form loss, up to 24%, would contribute substantially with the increase of tube diameter due to significant reduction of fluid density at the channel outlet. Several classic correlations for turbulent flow and non-isothermal correlations for supercritical fluids are examined in smooth tubes. In overall, the existing empirical correlations could reasonably predict the frictional pressure drop within a relative error of about 30% against the present data set under uniform heating conditions.

Research Area(s)

  • Carbon dioxide, Pressure drop, Supercritical fluid, Uniform heat flux

Citation Format(s)

Experimental investigation in the pressure drop characteristics of supercritical carbon dioxide in the uniformly heated horizontal miniature tubes. / Wang, Lei; Pan, Yu Cheng; Lee, Jin Der; Wang, Yan; Fu, Ben Ran; Pan, Chin.

In: Journal of Supercritical Fluids, Vol. 162, 104839, 01.08.2020.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal