scholarly journals Variation of the Film Boiling Mode in He II from the Vicinity of the Lambda Pressure down to the Saturated State

2004 ◽  
Vol 39 (6) ◽  
pp. 277-284 ◽  
Author(s):  
Masakazu NOZAWA ◽  
Masahide MURAKAMI ◽  
Peng ZHANG ◽  
Nobuhiro KIMURA
Keyword(s):  
Film Boiling ◽  
Saturated State ◽  
Boiling Mode

Relative Stability Between Nucleate and Film Boiling on a Nonuniformly Heated Plate Surface

1997 ◽  
Vol 119 (2) ◽  
pp. 326-331 ◽  
Author(s):  
W. W. Lin ◽  
D. J. Lee
Keyword(s):  
Heat Flux ◽  
Flux Distribution ◽  
Flow Boiling ◽  
Heating Surface ◽  
Nucleate Boiling ◽  
Film Boiling ◽  
Heated Plate ◽  
Neutral Stability ◽  
Heat Flux Distribution ◽  
Boiling Mode

Flow boiling of methanol over a nonuniform, indirect conduction heating surface is investigated experimentally. An axial (discrete) heat flux distribution corresponding to a neutral stability region where nucleate and film boiling can coexist steadily is identified. Below such a heat flux distribution, nucleate boiling mode is more stable. Above this distribution, film boiling mode becomes more stable. We had employed an equal-area criterion for interpreting the heat flux and wall superheat relationship. Analogy between the wire boiling system is proposed. The differences between average and real transition boiling curves are discussed as well.

Pool Boiling of FC-72 and HFE-7100

1999 ◽  
Vol 123 (2) ◽  
pp. 399-400 ◽  
Author(s):  
Z. W. Liu ◽  
W. W. Lin ◽  
D. J. Lee ◽  
X. F. Peng
Keyword(s):  
Heat Flux ◽  
Critical Heat Flux ◽  
Atmospheric Pressure ◽  
Pool Boiling ◽  
Nucleate Boiling ◽  
Film Boiling ◽  
Boiling Mode

This work reported the boiling characteristics of FC-72 and HFE-7100 at atmospheric pressure and at a liquid subcooling of 0–20 K. The FC-72 exhibits a more efficient nucleate boiling mode and a higher critical heat flux (CHF) than the HFE-7100. For film boiling mode, HFE-7100 becomes more efficient.

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