Share

A PHYSICAL APPROACH TO CRITICAL HEAT FLUX OF SUBCOOLED FLOW BOILING IN ROUND TUBES.

Author(s) : KATTO Y.

Type of article: Article

Summary

THE PAPER PRESENTS AN ANALYSISOF THE CRITICAL HEAT FLUX (CHF) OF SUBCOOLED FLOW BOILING BASED ON THE LIQUID SUBLAYER DRYOUT MECHANISM, ASSUMING THAT IT IS A SIMILAR PHENOMENON TO CHF IN POOL BOILING EXCEPT FOR APPARENT DIFFERENCES BETWEEN FORCED AND NATURAL CONVECTION. EMPLOYING THE SAME FORMULA OF SUBLAYER THICKNESS AS THAT DERIVED FOR CHF IN POOL BOILING, A PHYSICAL MODEL OF CHF IS DERIVED WITH AN EMPIRICAL COEFFICIENT RELATING TO THE VELOCITY OF A VAPOUR BLANKET SLIDING ON A THIN LIQUID SUBLAYER. PREDICTED VALUES ARE COMPARED WITH EXPERIMENTAL DATA FOR WATER, R12, R11, NITROGEN, HELIUM AND R113.

Details

  • Original title: A PHYSICAL APPROACH TO CRITICAL HEAT FLUX OF SUBCOOLED FLOW BOILING IN ROUND TUBES.
  • Record ID : 1991-0594
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 33 - n. 4
  • Publication date: 1990/04

Links


See other articles in this issue (6)
See the source

Indexing