In the present paper, a systematic study of the heat transfer characteristics of water in a new-type vertically-upward internally-ribbed tube has been carried out experimentally. The ranges of the experimental parameters were as follows: the pressure at the inlet of the test section ranged from 12 to 28 MPa, and the mass velocity was from 400 to 1200 kg/m2s, and the internal wall heat flux varied from 300 to 600 kW/m2. The experimental results showed that no matter at subcritical pressures or at supercritical pressures, with the increase in pressure or heat flux, the heat transfer in the internally ribbed tube was weakened, while with the increase in mass velocity, the heat transfer was improved. A systematic comparison between the heat transfer of water in internally ribbed tubes and that in smooth tubes was made in this paper. It was found that compared with the smooth tube, the internally ribbed tube can effectively enhance the heat transfer at subcritical pressures, and also at supercritical pressures. In this paper, the heat transfer enhancement of the internally ribbed tube was attributed to the enlarged heat transfer area, disturbing effect of ribs and the rotational flow in the internally ribbed tube. On the basis of analysis of the effects of tube geometric structures on heat transfer in internally ribbed tubes, a new nondimensional parameter composed of the geometric parameters of the internally ribbed tube was put forward in the present paper to qualitatively compare the capacity of heat transfer enhancement of internally ribbed tubes with different geometric structures, and this new nondimensional parameter got verified by comparison of experimental data of different internally ribbed tubes from open literatures.
Skip Nav Destination
ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology
July 14–19, 2013
Minneapolis, Minnesota, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-5548-5
PROCEEDINGS PAPER
Experimental Study on the Heat Transfer Characteristics of Water in Vertically-Upward Internally-Ribbed Tubes
Qing Zhang,
Qing Zhang
Xi’an Jiaotong University, Xi’an, Shaanxi, China
Search for other works by this author on:
Huixiong Li,
Huixiong Li
Xi’an Jiaotong University, Xi’an, Shaanxi, China
Search for other works by this author on:
Weiqiang Zhang
Weiqiang Zhang
Xi’an Jiaotong University, Xi’an, Shaanxi, China
Search for other works by this author on:
Qing Zhang
Xi’an Jiaotong University, Xi’an, Shaanxi, China
Huixiong Li
Xi’an Jiaotong University, Xi’an, Shaanxi, China
Weiqiang Zhang
Xi’an Jiaotong University, Xi’an, Shaanxi, China
Paper No:
HT2013-17291, V002T04A010; 8 pages
Published Online:
December 21, 2013
Citation
Zhang, Q, Li, H, & Zhang, W. "Experimental Study on the Heat Transfer Characteristics of Water in Vertically-Upward Internally-Ribbed Tubes." Proceedings of the ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. Volume 2: Heat Transfer Enhancement for Practical Applications; Heat and Mass Transfer in Fire and Combustion; Heat Transfer in Multiphase Systems; Heat and Mass Transfer in Biotechnology. Minneapolis, Minnesota, USA. July 14–19, 2013. V002T04A010. ASME. https://doi.org/10.1115/HT2013-17291
Download citation file:
15
Views
Related Proceedings Papers
Related Articles
Time-Averaged Heat Flux for a Recessed Tip, Lip, and Platform of a Transonic Turbine Blade
J. Turbomach (October,2000)
Heat Transfer to Water-Oxygen Mixtures at Supercritical Pressure
J. Heat Transfer (June,2004)
Analysis for Slip Flow Over a Single Free Disk With Heat Transfer
J. Fluids Eng (May,2005)
Related Chapters
Application of Universal Functions
Applications of Mathematical Heat Transfer and Fluid Flow Models in Engineering and Medicine
Circular Flux Tubes and Disks
Thermal Spreading and Contact Resistance: Fundamentals and Applications
Heat Transfer in A Semi-Infinite Stainless-Steel When Applying Constant Heat Flux On X = 0 Surface
Case Studies in Transient Heat Transfer With Sensitivities to Governing Variables