Transport mechanism of nonvolatile impurties in boiling on surfaces coated with a porous structure

Journal Article · Tue Mar 01 00:00:00 EST 1977 · High Temp. (USSR) (Engl. Transl.); (United States)

OSTI ID:7290536

Styrikovich, M A; Leont'ev, A I; Malyshenko, S P

The elementary processes responsible for impurity enrichment of the liquid in the immediate vicinity of the heating surface are investigated in connection with boiling on a porous-coated surface. A simple theory is proposed for calculating the degree of impurity enrichment of the liquid on the surface. It turns out that the investigated effects can account for 10/sup 2/- to 10/sup 3/-fold enrichment, resulting in corrosion of the heating surface if surface-inactive impurities are corrosion-prone. These effects are a potential cause of recent steam generator accidents in a number of plants using PWR reactors.

• Research Organization: High-Temperature Institute, Academy of Sciences of the USSR
• OSTI ID: 7290536
• Journal Information: High Temp. (USSR) (Engl. Transl.); (United States), Vol. 14:5
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
STEAM GENERATORS
CORROSION
BOILING
CRITICAL HEAT FLUX
DIFFUSION
FAILURES
HEAT TRANSFER
REACTORS
SURFACE PROPERTIES
BOILERS
CHEMICAL REACTIONS
ENERGY TRANSFER
HEAT FLUX
PHASE TRANSFORMATIONS
VAPOR GENERATORS
200104* - Fossil-Fueled Power Plants- Components
210000 - Nuclear Power Plants