Nucleate Boiling Heat Transfer in Spray Cooling

1996 ◽  
Vol 118 (3) ◽  
pp. 668-671 ◽  
Author(s):  
J. Yang ◽  
L. C. Chow ◽  
M. R. Pais
Keyword(s):  
Heat Transfer ◽  
Experimental Data ◽  
Experimental Study ◽  
Boiling Heat Transfer ◽  
Gas Flow ◽  
Nucleate Boiling ◽  
Spray Cooling ◽  
Droplet Impingement ◽  
Impingement Cooling ◽  
Nucleate Boiling Heat Transfer

An experimental study to determine the effect of liquid and secondary gas flow in droplet impingement cooling is presented. The nucleate boiling regime in particular is analyzed. A correlation to predict the Nusselt number based on the liquid film thickness is derived and compared with the experimental data.

A Correlation for Confined Nucleate Boiling Heat Transfer

2011 ◽  
Vol 133 (7) ◽  
Author(s):  
Mark Aaron Chan ◽  
Christopher R. Yap ◽  
Kim Choon Ng
Keyword(s):  
Heat Transfer ◽  
Experimental Data ◽  
Boiling Heat Transfer ◽  
Dimensionless Parameter ◽  
Mean Absolute Error ◽  
Absolute Error ◽  
Nucleate Boiling ◽  
Bond Number ◽  
Operating Conditions ◽  
Nucleate Boiling Heat Transfer

Abstract This study presents a generalized confined boiling correlation applicable for various working fluids and operating conditions. A dimensionless parameter, Bond number, has been incorporated into the correlation to include the effects of confinement in the ebullition process of boiling. The proposed correlation is compared with an existing correlation based on their capability in predicting confined boiling data from the literature. A phenomenon of heat transfer coefficient stagnation is found for boiling in narrow spaces despite an increase in heat flux. Results show that the proposed correlation entails an excellent agreement with experimental data, and the predictions have a reasonably low mean absolute error of 17.3% for the entire database.

scholarly journals Experimental study of nucleate boiling heat transfer enhancement by using surfactant

2011 ◽  
Vol 2 (3-4) ◽  
pp. 195-209 ◽  
Author(s):  
R.I. Elghanam ◽  
M.M.EL. Fawal ◽  
R. Abdel Aziz ◽  
M.H. Skr ◽  
A. Hamza Khalifa
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Heat Transfer Enhancement ◽  
Boiling Heat Transfer ◽  
Nucleate Boiling ◽  
Transfer Enhancement ◽  
Nucleate Boiling Heat Transfer
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