Abstract
The article explores the experimental analysis of heat transfer enhancement, friction factor and thermal performance of a dimpled tube heat exchanger equipped with regularly spaced twisted tape inserts. The experiments are conducted with water as a working medium and Reynolds number variation from 4,200 to 16,000. The twisted tapes with full length of three different twist ratios(y/D=2, 3, 4), regularly spaced twisted tapes with same twist ratios and two different free space ratios(s/D=4.5, 9.0) equipped with dimpled tube with two pitch ratios (P=1.5, 3.0) are tested in heat exchanger. The results obtained for dimpled tube equipped with regularly spaced twisted tapes are compared with the results for with and without twisted tapes. Also comparison is made with plain tube. It is observed that full length twisted equipped in dimpled tube performs better than any other combination of dimpled tube heat exchanger.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
