Transient volumetric heat transfer coefficient prediction of a three-phase direct contact condenser

Hameed B. Mahood, Adel O. Sharif, Rex B. Thorpe

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

An experimental investigation for the time dependent volumetric heat transfer coefficient of the bubbles type, three-phase direct contact condenser has been carried out utilising a short column (70 cm in total height and 4 cm inner diameter). A 47 cm active height was chosen with five different mass flow rate ratios and three different initial dispersed phase temperatures. Vapour pentane and constant temperature tap water as dispersed and continuous phases were implemented. The results showed that the volumetric heat transfer coefficient decreases with increased time until it almost reaches its steady state conditions. A sharp decrease in the volumetric heat transfer coefficient was found at the beginning of the operation and, diminished over a short time interval. Furthermore, a positive effect of the mass flow rate ratios on the volumetric heat transfer coefficient was noted and this was more pronounced at the beginning of the operation. On the other hand, the volumetric heat transfer coefficient decreased with an increase in the continuous phase mass flow rate and there was no considerable effect of the initial dispersed phase temperatures, which confirms that latent heat transfer is dominant in the process.

Original languageEnglish
Pages (from-to)165-170
Number of pages6
JournalHeat and Mass Transfer/Waerme- und Stoffuebertragung
Volume51
Issue number2
DOIs
Publication statusPublished - 2014

Fingerprint

condensers
heat transfer coefficients
Heat transfer coefficients
mass flow rate
predictions
Flow rate
pentanes
Latent heat
taps
latent heat
Temperature
temperature
bubbles
heat transfer
Vapors
vapors
Heat transfer
intervals
Water
water

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Fluid Flow and Transfer Processes

Cite this

Transient volumetric heat transfer coefficient prediction of a three-phase direct contact condenser. / Mahood, Hameed B.; Sharif, Adel O.; Thorpe, Rex B.

In: Heat and Mass Transfer/Waerme- und Stoffuebertragung, Vol. 51, No. 2, 2014, p. 165-170.

Research output: Contribution to journalArticle

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