Digitale Bibliotheek
Sluiten Bladeren door artikelen uit een tijdschrift
 
   volgende >>
     Tijdschrift beschrijving
       Alle jaargangen van het bijbehorende tijdschrift
         Alle afleveringen van het bijbehorende jaargang
           Alle artikelen van de bijbehorende aflevering
                                       Details van artikel 1 van 6 gevonden artikelen
 
 
  COUNTERCURRENT FLOODING IN VERTICAL-TO-INCLINED PIPES
 
 
Titel: COUNTERCURRENT FLOODING IN VERTICAL-TO-INCLINED PIPES
Auteur: Kawaji, M.
Thomson, L. A.
Krishnan, V. S.
Verschenen in: Experimental heat transfer
Paginering: Jaargang 4 (1991) nr. 2 pagina's 95-110
Jaar: 1991-04-01
Inhoud: Countercurrent flooding data have been obtained using air and water for vertical-to-downwardly inclined pipes containing elbows of varying angles. Experiments were performed with six different test sections, all having an inner diameter of 51 mm and a 1-m-tong vertical tube connected to an inclined or horizontal tube The flooding data for 112.5° and 135° elbow angles were almost identical and showed that these geometries required the largest gas flow rates for flooding among all the geometries tested. The flooding gas velocities for the 157.5° elbow were slightly less than those of the 112.5° and 135° elbows but greater than those of the vertical pipe without any elbow and vertical-to-horizontal pipes at low to moderate liquid flow rates In all vertical-to-inclined pipes, flooding was initiated in the inclined section at about 15 to 50 cm downstream of the elbow. Due to the countercurrent flow of gas, the liquid stream just downstream of the elbow became highly agitated and a frothy mixture was carried upstream by gas at flooding. At moderate to high liquid flow rates, the liquid was deflected off at the elbow to form a turbulent, jetlike stream that partially broke up into droplets, These droplets were, at the onset of flooding, entrained and carried over by the gas stream Comparison of the data with the slugging correlation at low liquid flow rates and with the liquid entrainment/carryover model at high liquid flow rates suggested that these mechanisms are likely responsible for flooding in vertical-to-inclined pipes.
Uitgever: Taylor & Francis
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

                             Details van artikel 1 van 6 gevonden artikelen
 
   volgende >>
 
 Koninklijke Bibliotheek - Nationale Bibliotheek van Nederland