Enhancing heat transfer in tube heat exchanger by inserting discrete twisting tapes with different positions
Other Title(s)
تحسين انتقال الحرارة في مبادل حراري انبوبي بحشر اشرطة ملتوية منفصلة بوضعيات مختلفة
Joint Authors
Mahmud, Abd al-Rahman Shakir
Husayn, Nasr Fadil
Source
Issue
Vol. 25, Issue 8 (31 Aug. 2019), pp.39-51, 13 p.
Publisher
University of Baghdad College of Engineering
Publication Date
2019-08-31
Country of Publication
Iraq
No. of Pages
13
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
Enhancement of heat transfer in the tube heat exchanger is studied experimentally by using discrete twisted tapes.
Three different positions were selected for inserting turbulators along tube section (horizontal position by α= 00, inclined position by α= 45 0 and vertical position by α= 900).
The space between turbulators was fixed by distributing 5 pieces of these turbulators with pitch ratio PR = (0.44).
Also, the factor of constant heat flux was applied as a boundary condition around the tube test section for all experiments of this investigation, while the flow rates were selected as a variable factor (Reynolds number values vary from 5000 to 15000).
The results show that using discrete twisted tapes enhances the heat transfer rate by about 60.7-103.7 % compared with plane tube case.
Also, inserting turbulators with inclined position offers maximum heat transfer rate by
American Psychological Association (APA)
Husayn, Nasr Fadil& Mahmud, Abd al-Rahman Shakir. 2019. Enhancing heat transfer in tube heat exchanger by inserting discrete twisting tapes with different positions. Journal of Engineering،Vol. 25, no. 8, pp.39-51.
https://search.emarefa.net/detail/BIM-891290
Modern Language Association (MLA)
Husayn, Nasr Fadil& Mahmud, Abd al-Rahman Shakir. Enhancing heat transfer in tube heat exchanger by inserting discrete twisting tapes with different positions. Journal of Engineering Vol. 25, no. 8 (Aug. 2019), pp.39-51.
https://search.emarefa.net/detail/BIM-891290
American Medical Association (AMA)
Husayn, Nasr Fadil& Mahmud, Abd al-Rahman Shakir. Enhancing heat transfer in tube heat exchanger by inserting discrete twisting tapes with different positions. Journal of Engineering. 2019. Vol. 25, no. 8, pp.39-51.
https://search.emarefa.net/detail/BIM-891290
Data Type
Journal Articles
Language
English
Notes
Includes appendix : p. 51
Record ID
BIM-891290