Effect of V-shape twisted jaw turbulators on thermal performance of tube heat exchanger : an experimental study
Joint Authors
Abd al-Munim, Abd al-Munim Rad
Ubayd, Akram H.
Husayn, Nasr F.
Source
Engineering and Technology Journal
Issue
Vol. 36, Issue 11A (30 Nov. 2018), pp.1158-1164, 7 p.
Publisher
Publication Date
2018-11-30
Country of Publication
Iraq
No. of Pages
7
Main Subjects
Abstract EN
The main purpose of the present investigation is enhancing heat transfer rate in a tube heat exchanger by using V-shape twisted Jaws.
The air is used as a working fluid and pumped through the test section with different values of Reynolds number (6000 - 19500), while the heat flux has been selected as a constant boundary condition around the tube section.
In this study, two type of twisted jaw turbulators are used with two twisted ratio (TR= 2 & 4) as well as, the effect of using different numbers of turbulators (N= 6, 8 and 10) inside test section with equal distances between pieces are studied.
The results indicated that, using augmentations with TR=2 gives better heat transfer rate and thermal performance factor comparing with the other case TR=4.
The maximum rate of heat transfer is achieved in case of N=10 by an increased 160.29% for TR=2 and 102% for TR=4 comparing with plain tube case.
In addition, results show that the values of thermal performance factor exceed the unity and shows uptrend behavior with rising numbers of turbulators indicating to feasibility of using these turbulators practically.
American Psychological Association (APA)
Ubayd, Akram H.& Husayn, Nasr F.& Abd al-Munim, Abd al-Munim Rad. 2018. Effect of V-shape twisted jaw turbulators on thermal performance of tube heat exchanger : an experimental study. Engineering and Technology Journal،Vol. 36, no. 11A, pp.1158-1164.
https://search.emarefa.net/detail/BIM-832610
Modern Language Association (MLA)
Ubayd, Akram H.…[et al.]. Effect of V-shape twisted jaw turbulators on thermal performance of tube heat exchanger : an experimental study. Engineering and Technology Journal Vol. 36, no. 11A (2018), pp.1158-1164.
https://search.emarefa.net/detail/BIM-832610
American Medical Association (AMA)
Ubayd, Akram H.& Husayn, Nasr F.& Abd al-Munim, Abd al-Munim Rad. Effect of V-shape twisted jaw turbulators on thermal performance of tube heat exchanger : an experimental study. Engineering and Technology Journal. 2018. Vol. 36, no. 11A, pp.1158-1164.
https://search.emarefa.net/detail/BIM-832610
Data Type
Journal Articles
Language
English
Notes
Includes appendices : p. 1163-1164
Record ID
BIM-832610