Journal
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Volume 57, Issue 1, Pages 9-15Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2012.09.060
Keywords
Heat exchanger; Helical coil; Heat transfer coefficient; Fouling factor; Hydraulic diameter
Categories
Funding
- Ministry of Education and Science of Serbia
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This paper presents the results of measurements of thermal performance of 8 heat exchangers with parallel helical coils. Measurements were conducted in substations in 2 district heating systems in Serbia: Belgrade and Sremska Mitrovica. The values of fouling resistances were found to be slightly lesser than usual values for typical shell-and-tube heat exchangers with straight tubes. Analysis of thermal performance of heat exchangers showed that the shell-side heat transfer coefficient can be calculated using the correlation based on hydraulic diameter. (C) 2012 Elsevier Ltd. All rights reserved.
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