Two-Component Two-Phase Flow Parameters for Low Circulation Rates Metadata

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Title

  • Main Title Two-Component Two-Phase Flow Parameters for Low Circulation Rates

Creator

  • Author: Smissaert, G. E.
    Creator Type: Personal

Publisher

  • Name: Argonne National Laboratory
    Place of Publication: Illinois
  • Name: Associated Midwest Universities, Lemont, Ill.
    Place of Publication: United States

Date

  • Creation: 1963-07-01

Language

  • English

Description

  • Content Description: Two-phase flow parameters for upward cocurrent vertical flow were studied in air--water, nitrogen- Freon-113, and nitrogen-- mercury mixtures. Tests were performed in natural-circulation loops at atmospheric pressure. The superficial liquid velocity ranged from 0 to 1 ft/sec; quality ranges were as follows: for air-water, 0.0125 to 0.100; for nitrogen-- Freon-113, 0.002 to 0.006; for nitrogen-mercury, 0.00005 to 0.0024. The studies of air--water and nitrogen-- Freon-113 mixtures were made in 2.75-in.-ID test section; the nitrogen- - mercury study was made in a 2-in.-ID pipe. The two-phase flow parameters were found to change significantly with superficial liquid velocity and quality in this low-circulation range. Slip ratios were found to be directly proportional to the surface tension of the liquid, and inversely proportional to the dynamic viscosity of the liquid. Dimensional analysis was used to correlate slip ratios and gas-to-liquid holdups as a function of four dimensionless groups which included the liquid circulation rate, the gas circulation rate, the surface tension of the liquid, the dynamic viscosity of the liquid, the density of the liquid, the density of the gas, the pipe diameter, and the acceleration due to gravity. Empirical relations were developed to evaluate slip ratios and void fractions as a function of the above-listed parameters. Flow-pattern effects were found to be conveniently described by means of a variable exponent of the Froude number. This exponent was observed to be a linearly decreasing function of the logarithm of the ratio of the volumetric flow rates. (auth)
  • Physical Description: 68 pages

Subject

  • Keyword: Vapor Quality
  • Keyword: Viscosity
  • Keyword: Efficiency
  • Keyword: Laboratory Equipment
  • Keyword: Water
  • Keyword: Liquids
  • Keyword: Organic Chlorine Compounds
  • Keyword: Engineering And Equipment
  • Keyword: Air
  • Keyword: Standards
  • Keyword: Mass
  • Keyword: Velocity
  • Keyword: Flow Models
  • Keyword: Freons
  • Keyword: Tubes
  • Keyword: Organic Fluorine Compounds
  • Keyword: Evaporation
  • Keyword: Vapors
  • Keyword: Slip Ratio
  • Keyword: Nitrogen
  • Keyword: Quantity Ratio
  • Keyword: Froude Number
  • Keyword: Gravitation
  • Keyword: Density
  • Keyword: Fluid Flow
  • Keyword: Gases
  • Keyword: Mercury
  • Keyword: Surface Tension
  • Keyword: Performance
  • Keyword: Mathematics

Source

  • Other Information: Orig. Receipt Date: 31-DEC-63

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Report No.: ANL-6755
  • Grant Number: W-31-109-ENG-38
  • DOI: 10.2172/4690066
  • Office of Scientific & Technical Information Report Number: 4690066
  • Archival Resource Key: ark:/67531/metadc1033506
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