Turbulence Heat and Mass Transfer 6. Proceedings of the Sixth International Symposium On Turbulence Heat and Mass Transfer
DOI: 10.1615/ICHMT.2009.TurbulHeatMassTransf
ISBN Print: 978-1-56700-262-1
ISSN: 2377-2816
Alternative coiled heat exchangers
page 5
DOI: 10.1615/ICHMT.2009.TurbulHeatMassTransf.80
要約
Recent developments in material and energy costs demand efficient heat transfer apparatus. The question addressed in this study was if standard pipe fittings such as 180°- and 90°-bends can be used to build alternatively coiled heat exchangers with enhanced heat transfer. For that purpose a water channel was constructed. It was found that by employing standard fittings, an enhancement of heat transfer compared to standard coiled tube heat exchangers between 2 and 20 % can be obtained. However, the heat transfer enhancement is restricted to inner Reynolds numbers below 6.000.