Pool_Boiling - 1 Pool Boiling Boiling in an otherwise...

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1 Pool Boiling: Boiling in an otherwise Stationary Liquid qh ss sat ( TT ) ′′ = (10.3) e h( T ) = s sat > excess temperature Boiling Curve b Nucleate Boiling (10.4) a se qC ( T ) [ n ] ′′ =∆ ( ) 1.2 5 or 6 1/3 ee C( T 3 q( T ) See Eq. (10.5) and Table 10.1
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2 Critical Heat Flux () 1/4 v max v fg 2 v g . 1 4 9 h q0 σρ− ρ ′′ ρ A (10.7) Minimum Heat Flux v v min fg 2 v g . 0 9 h ρ ρ+ρ A A (10.8) Film Boiling Film boiling correlations are based on results obtained from condensation theory. Vapor properties are evaluated at the film temperature ( ) s sat f TT 2 + = T . Liquid density is evaluated at T sat . For cylinders or spheres, D 3 v conv fg vv v s sat g( )h D hD Nu C kk ( T T ) ρ−ρ == ν− A (10.9)
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Pool_Boiling - 1 Pool Boiling Boiling in an otherwise...

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