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THEORETICAL PREDICTION OF CRITICAL HEAT FLUX IN SATURATED POOL BOILING DURING POWER TRANSIENTS.

  • K. O. Pasamehmetoglu
  • , R. A. Nelson
  • , F. S. Gunnerson

Research output: Contribution to journalConference articlepeer-review

9 Scopus citations

Abstract

Understanding and predicting critical heat flux (CHF) behavior during steady-state and transient conditions is of fundamental interest in the design, operation, and safety of boiling and two-phase flow devices. Presented within this paper are the results of a comprehensive theoretical study specifically conducted to model transient CHF behavior in saturated pool boiling. Thermal energy conduction within a heating element and its influence on the CHF are also discussed. The resultant theory provides new insight into the basic physics of the CHF phenomenon and indicates favorable agreement with the experimental data from cylindrical heaters with small radii. Finally, various factors that affect the discrepency between the data and the theory are discussed.

Original languageEnglish
Pages (from-to)57-64
Number of pages8
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume77
StatePublished - 1987

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