Date:

2025-04-30

Title of Paper:

Diameter effect on critical heat flux

Journal:

Nuclear Engineering and Design

Summary:

The critical heat flux look-up table (CHF LUT) is widely used to predict CHF for various applications,
including design and safety analysis of nuclear reactors. Using the CHF LUT for round tubes having
inside diameters different from the reference 8mminvolves conversion of CHF to 8mm. Different authors
[Becker, K.M., 1965. An Analytical and Experimental Study of Burnout Conditions in Vertical Round Ducts,
Aktiebolaget Atomenergie Report AE 177, Sweden; Boltenko, E.A., et al., 1989. Effect of tube diameter on
CHF at various two phase flow regimes, Report IPE-1989; Biasi, L., Clerici, G.C., Garriba, S., Sala, R., Tozzi,
A., 1967. Studies on Burnout, Part 3, Energia Nucleare, vol. 14, pp. 530–536; Groeneveld, D.C., Cheng, S.C.,
Doan, T., 1986. AECL-UO critical heat flux look-up table. Heat Transfer Eng., 7, 46–62; Groeneveld et al.,
1996; Hall, D.D.,Mudawar, I., 2000. Critical heat flux forwater flowin tubes – II subcooled CHF correlations.
Int. J. Heat Mass Transfer, 43, 2605–2640;Wong,W.C., 1996. Effect of tube diameter on critical heat flux,
MaSC dissertation, Ottawa Carleton Institute for Mechanical and Aeronautical Engineering, University of
Ottawa] have proposed several types of correlations or factors to describe the diameter effect on CHF. The
present work describes the derivation of new diameter correction factor and compares it with several
existing prediction methods.

Co-author:

A. Tanasea, S.C. Cheng, D.C. Groenevelda, J.Q. Shan

Volume:

239 (2009)

Page Number:

289–294

Translation or Not:

No

Date of Publication:

2009-09-15