Steam condensation heat transfer coefficient in large, flattened-tube steam condensers

William A. Davies, Pega Hrnjak

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Steam condensation heat transfer coefficient (HTC) in a large, flattened tube with variable heat flux, wall temperature and inclination angle is determined experimentally. The condenser tube is that used in air-cooled condensers for power plants. The steel tube has an elongated-slot cross section with inner dimensions of 216 x 16 mm. Vapor and liquid flow concurrently through a 5.7 m long air-cooled conditioning section, and HTC is determined in a 0.12 m long water-cooled test section.. Tube inclination angle is varied from 0 - 25o downwards. The long conditioning section creates conditions in the test section that mimic the conditions in an operating condenser - allowing for realistic development of flow regime and void fraction. HTC is then determined in the water-cooled section. Quality in this section ranges from 0 - 0.75. A visualization section allows determination of flow regime and void fraction. The flow is found to be stratified for all conditions. HTC is found to increase by 6-10 times along the condenser height.

Original languageEnglish (US)
Title of host publicationICR 2019 - 25th IIR International Congress of Refrigeration
EditorsVasile Minea
PublisherInternational Institute of Refrigeration
Pages1263-1270
Number of pages8
ISBN (Electronic)9782362150357
DOIs
StatePublished - Jan 1 2019
Event25th IIR International Congress of Refrigeration, ICR 2019 - Montreal, Canada
Duration: Aug 24 2019Aug 30 2019

Publication series

NameRefrigeration Science and Technology
Volume2019-August
ISSN (Print)0151-1637

Conference

Conference25th IIR International Congress of Refrigeration, ICR 2019
CountryCanada
CityMontreal
Period8/24/198/30/19

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Steam condensation heat transfer coefficient in large, flattened-tube steam condensers'. Together they form a unique fingerprint.

Cite this