THE MECHANISM OF NUCLEATE BOILING HEAT TRANSFER
Journal Article
·
· Intern. J. Heat Mass Transfer
In nucleate boiling a bubble created at nucleation site on a heating surface grows, leaves the surface, and rises. The fluid motion induced in the thermal boundary layer during the process is calculated and the heat flux carried by this liquid motion to a nucleation site is obtained. The heat flux thus calculated is equal to that transferred from the heating surface to the liquid by conduction and to the latent heat carried away by the bubble per unit time. From these relations the following theoretical formula is obtained. DELTA theta = 0.114 n/sup -1/4/ q/sup 2/3/, where DELTA theta is a temperature difference between the temperature of heating surface and the saturation temperature, n is the number of nucleation sites per unit area, and q is average heat flux. (P.C.H.)
- Research Organization:
- Railway Technical Research Inst., Tokyo
- NSA Number:
- NSA-18-003964
- OSTI ID:
- 4129627
- Journal Information:
- Intern. J. Heat Mass Transfer, Journal Name: Intern. J. Heat Mass Transfer Vol. Vol: 6
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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