Eleven correlations proposed for supercritical heat-transfer coefficients were assessed against a set of experimental data obtained recently with supercritical water flow in a vertical annular test section at Xi’an Jiaotong University. The inner heated rod of the test section had an outer diameter of 8 mm, while the outer unheated tube had an inner diameter of 16 mm (resulting in a gap size of 4 mm). The experiment covered pressure range from 23 to 28 MPa, mass-flux range from 350 to 1000 kg/m2s, and heat-flux range from 200 to 1000 kW/m2. The assessment shows relatively good agreement between predicted and experimental heat-transfer coefficients for several correlations. Some discrepancies have been observed at the region where deteriorated heat transfer, and are attributed to the modified Dittus-Boelter formulation that captures mainly the normal heat-transfer region. Overall, the Dittus-Boelter correlation is shown applicable only for the normal heat-transfer region, and significantly overpredicts the heat-transfer coefficient at the deteriorated heat-transfer region. The correlation of Bishop et al. appears valid for the current experimental database, particularly for high mass fluxes.
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2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference
July 30–August 3, 2012
Anaheim, California, USA
Conference Sponsors:
- Nuclear Engineering Division
- Power Division
ISBN:
978-0-7918-4497-7
PROCEEDINGS PAPER
Assessment of Heat-Transfer Correlations Against Experimental Data Obtained With Supercritical Water in Vertical Annuli
Zhendong Yang,
Zhendong Yang
Xi’an Jiaotong University, Xi’an, Shaanxi, China
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Qincheng Bi,
Qincheng Bi
Xi’an Jiaotong University, Xi’an, Shaanxi, China
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Han Wang,
Han Wang
Xi’an Jiaotong University, Xi’an, Shaanxi, China
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Gang Wu,
Gang Wu
Xi’an Jiaotong University, Xi’an, Shaanxi, China
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Laurence K. H. Leung
Laurence K. H. Leung
Atomic Energy of Canada Limited, Chalk River, ON, Canada
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Zhendong Yang
Xi’an Jiaotong University, Xi’an, Shaanxi, China
Qincheng Bi
Xi’an Jiaotong University, Xi’an, Shaanxi, China
Han Wang
Xi’an Jiaotong University, Xi’an, Shaanxi, China
Gang Wu
Xi’an Jiaotong University, Xi’an, Shaanxi, China
Laurence K. H. Leung
Atomic Energy of Canada Limited, Chalk River, ON, Canada
Paper No:
ICONE20-POWER2012-54206, pp. 103-110; 8 pages
Published Online:
October 30, 2013
Citation
Yang, Z, Bi, Q, Wang, H, Wu, G, & Leung, LKH. "Assessment of Heat-Transfer Correlations Against Experimental Data Obtained With Supercritical Water in Vertical Annuli." Proceedings of the 2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference. Volume 3: Thermal-Hydraulics; Turbines, Generators, and Auxiliaries. Anaheim, California, USA. July 30–August 3, 2012. pp. 103-110. ASME. https://doi.org/10.1115/ICONE20-POWER2012-54206
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