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Abstract
Vortex generator is considered as an effective device for augmentation of the thermal-hydraulic performance of a heat exchanger. The aim of present study is to examine the influence of vortex generators on a double fin and tube heat exchanger performance. Vortex generator of rectangular winglet type is chosen and investigated at different angles of attack 0 , ??10 and ??20 with the flow direction. Three-dimensional numerical model is developed and simulations are performed for a Reynolds number range 5000 Re 11000 taking conjugate heat transfer into account. The heat transfer and pressure loss characteristics are determined and analyzed for an in-line configuration of a fin and tube heat exchanger. In order to evaluate the enhancement in the performance on an equitable basis, the heat exchanger with plain fin surface is considered as a reference design. Results show that the angle of attack of a vortex generator has a significant impact on the volume goodness factor, and enhance the thermal performance of a fin and tube heat exchanger in comparison to the design with plain fin. The vortex generator at an angle of attack ??10 is found to perform superior over the Reynolds number range studied. At Re = 5000, the vortex generator with an angle of attack ??10 increases the volume goodness factor by 32% with respect to the baseline heat exchanger design.
Original language | English |
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Title of host publication | Proceedings of the 58th SIMS Conference on Simulation and Modelling, SIMS 2017 |
Editors | Magnus Thor Jonsson |
Number of pages | 7 |
Publisher | Linköping University Electronic Press |
Publication date | Sept 2017 |
Edition | 138 |
Pages | 13-19 |
ISBN (Print) | 978-91-7685-417-4 |
Publication status | Published - Sept 2017 |
Event | 58th SIMS Conference on Simulation and Modelling, SIMS 2017 - Orkustofnun - National Energy Authority, Reykjavik, Iceland Duration: 25 Sept 2017 → 27 Sept 2017 |
Conference
Conference | 58th SIMS Conference on Simulation and Modelling, SIMS 2017 |
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Location | Orkustofnun - National Energy Authority |
Country/Territory | Iceland |
City | Reykjavik |
Period | 25/09/2017 → 27/09/2017 |
Series | Linköping Electronic Conference Proceedings |
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ISSN | 1650-3686 |
Fingerprint
Dive into the research topics of 'Numerical investigation of conjugate heat transfer and flow performance of a fin and tube heat exchanger with vortex generators'. Together they form a unique fingerprint.Projects
- 1 Finished
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THERMCYC - Advanced thermodynamic cycles utilising low-temperature heat sources
Hærvig, J. (Project Participant), Sørensen, K. (Project Manager), Condra, T. (Project Manager) & Singh, S. (Project Participant)
15/09/2014 → 14/09/2017
Project: Research
Activities
- 1 Conference organisation or participation
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58th International Conference of Scandinavian Simulation Society
Singh, S. (Participant)
25 Sept 2017 → 27 Sept 2017Activity: Attending an event › Conference organisation or participation