Forced-Convection Condensation of Ethylene Glycol on Integral-Fin Tubes

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

Abstract

This paper reports new experimental data for forced-convection condensation of ethylene glycol on a set of five single, copper, integral-fin tubes. The five tubes had fin root diameter of 12.7 mm, fin height and thickness of 1.6 mm and 0.25 mm respectively. Fin spacings were 0.25, 0.5, 1.0, 1.5 and 2.0 mm. A plain tube of outside diameter 12.7 mm was also tested. The tests, which were performed at near constant pressure of approximately 15 kPa, covered vapor velocities between 10 and 22 m/s and a wide range of heat fluxes. The best performing tube was that with a fin spacing of 0.5 mm, which had an enhancement ratio (compared to the plain tube at the same vapor-side temperature difference and vapor velocity) of 2.5 at the lowest vapor velocity tested, increasing to 2.7 at the highest. The increase in enhancement ratio with increasing vapor velocity, which is the opposite trend to that found in most earlier experimental studies, was thought to be due to a slight reduction in condensate flooding between the fins due to increased vapor shear.
Original languageEnglish
Title of host publicationASME 2004 International Mechanical Engineering Congress and Exposition
PublisherAmerican Society of Mechanical Engineers
Pages613-619
Number of pages7
Volume2
ISBN (Print)079184711X
DOIs
Publication statusPublished - 2004
EventASME 2004 International Mechanical Engineering Congress and Exposition - Anaheim, United States
Duration: 13 Nov 200419 Nov 2004

Conference

ConferenceASME 2004 International Mechanical Engineering Congress and Exposition
CountryUnited States
CityAnaheim
Period13/11/0419/11/04

Fingerprint Dive into the research topics of 'Forced-Convection Condensation of Ethylene Glycol on Integral-Fin Tubes'. Together they form a unique fingerprint.

Cite this