Open AccessExperimental investigation on effect of helical grooves on condensation heat transfer performance of vertically oriented copper tubes
Author(s) -
Jyothish Abraham,
G. Venugopal,
M. R. Rajkumar
Publication year - 2019
Publication title -
e3s web of conferences
Language(s) - English
Resource type - Journals
eISSN - 2555-0403
pISSN - 2267-1242
DOI - 10.1051/e3sconf/201912806001
Subject(s) - copper , groove (engineering) , materials science , condensation , tube (container) , heat transfer coefficient , heat transfer , composite material , heat transfer enhancement , enhanced heat transfer , thermodynamics , metallurgy , physics
An experimental investigation was conducted to study the influence of pitch of helical grooves on condensation heat transfer performance on vertically oriented copper tubes. The condensation heat transfer coefficient of bare as well as grooved copper tubes of various pitches ranging from 2.54 mm to 22.4mm were studied. The investigation revealed that copper tube with groove pitch ≤ 6.35 mm has an adverse effecton the heat transfer performance in comparison to bare copper. The helical groove with pitch > 6.35 mm showed improvement in heat transfer coefficient. The helical groove with pitch 8.47 mm showed a maximum enhancement of 68.4% in condensation heat transfer coefficient at ∆T = 40°C.