ISSN Online: 2377-424X
ISBN Print: 0-85295-345-3
International Heat Transfer Conference 10
POOL BOILING ON POROUS SURFACES WITH MICRO-GROOVES
Sinopsis
Experimental investigations were performed of
boiling heat transfer from porous surfaces with spiral
20°,30°,40° V-shaped grooves on the tubes, around
which copper wires were uniformly wrapped, using
distilled water, F-113, ethanol as working fluids at
atmospheric pressure. The results showed that the
heat transfer enhancement of the structures was reasonably
good. An analytical model was proposed for
medium and high heat fluxes. Considering the liquid
film, the mechanism of heat transfer on the porous
surfaces with small pores and connected cavities and
the angle effects of the V-shaped grooves were analyzed.