Nucleate pool boiling of R-134a on plain and micro-finned tubes

2013 ◽  
Vol 36 (2) ◽  
pp. 456-464 ◽  
Author(s):  
Sérgio Pereira Rocha ◽  
Olivier Kannengieser ◽  
Elaine Maria Cardoso ◽  
Júlio César Passos
Keyword(s):  
Pool Boiling ◽  
Nucleate Pool Boiling ◽  
Finned Tubes ◽  
R 134A

Evaluation of the Rohsenow correlation through nucleate pool boiling data for refrigerants R-11, R-123, R-12, and R-134a

2002 ◽  
Author(s):  
J. M. Saiz Jabardo ◽  
Evandro Fockink da Silva ◽  
Gherhardt Ribatski ◽  
Samuel Freire de Barros
Keyword(s):  
Pool Boiling ◽  
Nucleate Pool Boiling ◽  
R 134A

Nucleate pool boiling characteristics from coated tube bundles in saturated R-134a

2003 ◽  
Vol 46 (7) ◽  
pp. 1223-1239 ◽  
Author(s):  
Shou-Shing Hsieh ◽  
Guo-Zhen Huang ◽  
Huang-Hsiu Tsai
Keyword(s):  
Pool Boiling ◽  
Nucleate Pool Boiling ◽  
Tube Bundles ◽  
R 134A

Experimental Study of Nucleate Pool Boiling of R-134a and R-410a on a Porous Surface

2018 ◽  
Vol 40 (15) ◽  
pp. 1249-1258 ◽  
Author(s):  
Ashok K. Dewangan ◽  
Anil Kumar ◽  
Ravi Kumar
Keyword(s):  
Experimental Study ◽  
Pool Boiling ◽  
Porous Surface ◽  
Nucleate Pool Boiling ◽  
R 134A

Nucleate Pool Boiling on Ribbed Surfaces With Micro-Roughness at Low and Moderate Heat Flux

1999 ◽  
Vol 121 (2) ◽  
pp. 376-385 ◽  
Author(s):  
S.-S. Hsieh ◽  
C.-J. Weng ◽  
J.-J. Chiou
Keyword(s):  
Heat Flux ◽  
Pool Boiling ◽  
Nucleate Boiling ◽  
Nucleation Site ◽  
Nucleate Pool Boiling ◽  
Site Density ◽  
R 134A ◽  
Microlayer Evaporation ◽  
Two Parameters ◽  
Nucleation Site Density

Nucleate pool boiling correlation was developed for five different rib-type roughened tube geometries (including plain tube) with different rib angles of 30 deg, 45 deg, 60 deg, and 90 deg for both distilled water and R-134a as the working media. A scanning electron micrograph (SEM) examination was made for these horizontal roughened tubes. Bubble departure diameter, frequency of bubble emission, and the active nucleation site density with the influence of the rib angle for this type of roughened surface were obtained. Boiling heat flux incorporating natural convection, nucleate boiling, and microlayer evaporation mechanisms following Benjamin and Balakrishnan (1996) was predicted. Heat transfer correlation was also developed in terms of the degree superheat and active nucleation site density. The dependence for these two parameters was found in favorable agreement with that of previous study for smooth surfaces.

Nucleate Pool Boiling Heat Transfer in Microgravity

1998 ◽  
Vol 29 (1-3) ◽  
pp. 196-207
Author(s):  
Haruhiko Ohta ◽  
Koichi Inoue ◽  
Suguru Yoshida ◽  
Tomoji S. Morita
Keyword(s):  
Heat Transfer ◽  
Boiling Heat Transfer ◽  
Pool Boiling ◽  
Nucleate Pool Boiling ◽  
Pool Boiling Heat Transfer
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