Heat transfer in fluids is very important in many industrial heating and cooling equipments. Convective heat transfer can be enhanced passively by changing flow geometry, boundary conditions or by increasing thermal conductivity of the fluid. Another possibility to increase heat transfer with gas is to employ extended surfaces. When gas flows in a tube, septa with one or more openings can be used as fins. Furthermore, if the openings are arranged to give a spiral motion around the cylinder axis wall-fluid contact area increases. As a consequence the presence of the septa can significantly augment pressure drops. In this paper a numerical investigation is carried out on forced convection in circular isothermal tubes. The fluid is air and ideal gas model is employed. Septa are introduced and several shapes and arrangements are analyzed. The investigation is accomplished by means of the commercial code Fluent. A turbulence model is used. Results are presented in terms of temperature and velocity fields, local and average heat transfer coefficients and pressure drops. The aim of this study is to find the shape and arrangement of septa such to give high heat transfer coefficients and low pressure drops.
Skip Nav Destination
ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences
August 10–14, 2008
Jacksonville, Florida, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4847-0
PROCEEDINGS PAPER
Numerical Investigation on Forced Convection in Circular Tubes With Septa Available to Purchase
D. Corrente,
D. Corrente
Seconda Universita` degli Studi di Napoli, Aversa, Italy
Search for other works by this author on:
O. Manca,
O. Manca
Seconda Universita` degli Studi di Napoli, Aversa, Italy
Search for other works by this author on:
S. Nardini,
S. Nardini
Seconda Universita` degli Studi di Napoli, Aversa, Italy
Search for other works by this author on:
D. Ricci,
D. Ricci
Seconda Universita` degli Studi di Napoli, Aversa, Italy
Search for other works by this author on:
G. Masullo
G. Masullo
Consorzio Ricerche Innovative per il Sud, Napoli, Italy
Search for other works by this author on:
D. Corrente
Seconda Universita` degli Studi di Napoli, Aversa, Italy
O. Manca
Seconda Universita` degli Studi di Napoli, Aversa, Italy
S. Nardini
Seconda Universita` degli Studi di Napoli, Aversa, Italy
D. Ricci
Seconda Universita` degli Studi di Napoli, Aversa, Italy
G. Masullo
Consorzio Ricerche Innovative per il Sud, Napoli, Italy
Paper No:
HT2008-56329, pp. 605-612; 8 pages
Published Online:
July 7, 2009
Citation
Corrente, D, Manca, O, Nardini, S, Ricci, D, & Masullo, G. "Numerical Investigation on Forced Convection in Circular Tubes With Septa." Proceedings of the ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. Heat Transfer: Volume 1. Jacksonville, Florida, USA. August 10–14, 2008. pp. 605-612. ASME. https://doi.org/10.1115/HT2008-56329
Download citation file:
7
Views
Related Proceedings Papers
Related Articles
Guidelines for the Determination of Single-Phase Forced Convection Coefficients in Microchannels
J. Heat Transfer (October,2013)
Elements of a General Correlation for Turbulent Heat Transfer
J. Heat Transfer (May,1996)
A Semi-Empirical Heat Transfer Model for Forced Convection in Pin-Fin Heat Sinks Subjected to Nonuniform Heating
J. Heat Transfer (December,2010)
Related Chapters
Extended Surfaces
Thermal Management of Microelectronic Equipment, Second Edition
Extended Surfaces
Thermal Management of Microelectronic Equipment
Completing the Picture
Air Engines: The History, Science, and Reality of the Perfect Engine