Performance Assessment of Double Corrugated Tubes in a Tube-In-Shell Heat Exchanger

In this article, the performance of double corrugated tubes applied in a tube-in-shell heat exchanger is analysed and compared to the performance of a heat exchanger equipped with straight tubes. The CFD (computational fluid dynamics) analysis was performed considering a turbulent flow regime at sev...

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Bibliographic Details
Published in:Energies (Basel) 2021-03, Vol.14 (5), p.1343
Main Authors: Navickaitė, Kristina, Penzel, Michael, Bahl, Christian R. H., Engelbrecht, Kurt
Format: Article
Language:English
Subjects:
CFD modelling
Computational fluid dynamics
Computer applications
enhanced heat transfer
Fluid dynamics
Fluid flow
Geometry
Heat
Heat exchangers
Heat transfer
Hydrodynamics
Mass flow rate
Methods
nature inspired geometry
Performance assessment
Pressure drop
Simulation
Turbulence models
Turbulent flow
turbulent flow region
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Summary:In this article, the performance of double corrugated tubes applied in a tube-in-shell heat exchanger is analysed and compared to the performance of a heat exchanger equipped with straight tubes. The CFD (computational fluid dynamics) analysis was performed considering a turbulent flow regime at several mass flow rates. It is observed that the double corrugated geometry does not have a significant impact on the pressure drop inside the analysed heat exchanger, while it has the potential to increase its thermal performance by up to 25%. The ε–NTU (effectiveness–number of transfer units) relation also demonstrates the advantage of using double corrugated tubes in tube-in-shell heat exchangers over straight tubes.
ISSN:1996-1073
1996-1073
DOI:10.3390/en14051343