Numerical Investigation of Heat Transfer Enhancement in a Circular Tube with Rectangular Opened Rings
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In this article, a steel tube of 50 cm long having outside diameter of 60 mm and inside diameter of 30 mm with constant outside surface temperature of 1000, 1200 and 1400 K o is numerically analyzed.Abstract:
Turbulent forced convection of coolant air flow (10 m/s velocity) in a steel tube of 50 cm long having outside diameter of 60 mm and inside diameter of 30 mm with constant outside surface temperature of 1000, 1200 and 1400 K o is numerically analyzed. The renormalization group k-e model is used to simulate turbulence in ANSYS - FLUENT 14.5. An opened ring of rectangular cross section (5x7 mm) is fitted in the tube and separated by 8cm pitch. Results of temperature and velocity distribution along the tube center line for the case of tube with internal ribs were compared with that of plain tube , these results show that the use of internal ribs enhance the heat transfer rate and found to possess the highest performance factors for turbulent flow.read more
Citations
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Principles Of Enhanced Heat Transfer
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References
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Book
Principles of Enhanced Heat Transfer
TL;DR: In this article, the authors evaluated two-phase heat exchangers for single-phase flows and showed that they can achieve state-of-the-art performance in terms of heat transfer.
Principles Of Enhanced Heat Transfer
TL;DR: The principles of enhanced heat transfer is universally compatible with any devices to read and is available in the book collection an online access to it is set as public so you can get it instantly.
Journal ArticleDOI
ExHFT for fourth generation heat transfer technology
TL;DR: In this article, a review of the many techniques that have been developed to enhance convective heat transfer is presented, and a summary is given of the techniques that are effective for the various modes of heat transfer.
Journal ArticleDOI
Thermal augmentation in circular tube with twisted tape and wire coil turbulators
TL;DR: In this paper, the effects of insertion of wire coils in conjunction with twisted tapes on heat transfer and turbulent flow friction characteristics in a uniform heat-flux, circular tube using air as the test fluid are experimentally investigated.
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Experimental investigation of heat transfer and turbulent flow friction in a tube fitted with perforated conical-rings
TL;DR: In this paper, the authors investigated the influence of perforated conical-ring (PCR) on the turbulent convective heat transfer (Nu), friction factor (f) and thermal performance factor (η) characteristics.