Film boiling heat transfer around a vertical finite-length cylinder with a convex hemispherical bottom

2010 ◽  
pp. n/a-n/a
Author(s):  
Takashi Yamada ◽  
Kaoru Toyoda ◽  
Toru Shigechi ◽  
Satoru Momoki ◽  
Kuniyasu Kanemaru ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Finite Length ◽  
Boiling Heat Transfer ◽  
Film Boiling

scholarly journals Film Boiling Heat Transfer around a Vertical Finite-Length Cylinder with a Convex Hemispherical Bottom(Thermal Engineering)

2009 ◽  
Vol 75 (756) ◽  
pp. 1649-1654
Author(s):  
Takashi YAMADA ◽  
Kaoru TOYODA ◽  
Toru SHIGECHI ◽  
Satoru MOMOKI ◽  
Kuniyasu KANEMARU ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Finite Length ◽  
Boiling Heat Transfer ◽  
Film Boiling ◽  
Thermal Engineering

Experiments and Analysis on Film Boiling Heat Transfer Around a Finite-Length Vertical Cylinder With a Convex Surface Swelling Downward

2008 ◽  
Author(s):  
Satoru Momoki ◽  
Kaoru Toyoda ◽  
Takashi Yamada ◽  
Toru Shigechi ◽  
Tomohiko Yamaguchi
Keyword(s):  
Heat Transfer ◽  
Lower Limit ◽  
Finite Length ◽  
Boiling Heat Transfer ◽  
Convex Surface ◽  
Analytical Data ◽  
Vertical Cylinder ◽  
Film Boiling ◽  
Bottom Surface ◽  
Bottom Side

A method of predicting the overall heat transfer coefficient and the temperature at the lower limit of film boiling for a finite-length cylinder with flat top and bottom surfaces has been researched and proposed in a previous paper. This paper presents and compares an analysis in the case of a cylinder with a hemispherical bottom. The film boiling heat transfer around a vertical silver cylinder with a convex hemispherical bottom surface is investigated both experimentally and analytically in the present study. The obtained results are also compared and discussed with the authors’ previous results for a finite-length cylinder with flat top and bottom surfaces. Quenching experiments were performed using silver cylinders in saturated water. The diameter and length of the test cylinders are 32mm and 48mm, respectively. The test cylinder was heated up to about 600°C in an electric furnace and then cooled down in saturated quiescent water at atmospheric pressure. The resultant cooling and boiling curves and photographs of the film boiling phenomena are presented and discussed. The average heat transfer performance of the hemispherically bottomed cylinder is about 20% higher than that of the flat bottomed cylinder. The degree of wall superheating at the lower limit of film boiling is about 133K. The saturated film boiling heat transfer around the vertical finite-length cylinder with a convex hemispherical bottom was analyzed by taking into account the convective heat transfers from the bottom, side and top surfaces of the cylinder. The resulting analytical data correlated closely with the experimental data in the present study.

4603 Subcooled Film Boiling Heat Transfer around a Vertical Finite-Length Cylinder

2006 ◽  
Vol 2006.3 (0) ◽  
pp. 149-150
Author(s):  
Takashi YAMADA ◽  
Toru SHIGECHI ◽  
Satoru MOMOKI ◽  
Kuniyasu KANEMARU ◽  
Tomohiko YAMAGUCHI
Keyword(s):  
Heat Transfer ◽  
Finite Length ◽  
Boiling Heat Transfer ◽  
Film Boiling

scholarly journals ICONE19-43320 EFFECT OF THE BOTTOM CONFIGURATION ON FILM BOILING HEAT TRANSFER FROM A VERTICAL FINITE-LENGTH CYLINDER

2011 ◽  
Vol 2011.19 (0) ◽  
pp. _ICONE1943-_ICONE1943
Author(s):  
Satoru Momoki ◽  
Takashi Yamada ◽  
Toru Shigechi ◽  
Kaoru Toyoda ◽  
Tomohiko Yamaguchi ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Finite Length ◽  
Boiling Heat Transfer ◽  
Film Boiling

scholarly journals Experiments and Analysis on Film Boiling Heat Transfer around a Finite-Length Vertical Cylinder with a Convex Surface Facing Downward

2009 ◽  
Vol 3 (1) ◽  
pp. 182-193 ◽  
Author(s):  
Satoru MOMOKI ◽  
Kaoru TOYODA ◽  
Takashi YAMADA ◽  
Toru SHIGECHI ◽  
Tomohiko YAMAGUCHI
Keyword(s):  
Heat Transfer ◽  
Finite Length ◽  
Boiling Heat Transfer ◽  
Convex Surface ◽  
Vertical Cylinder ◽  
Film Boiling

scholarly journals Film Boiling Heat Transfer around a Vertical Finite-Length Cylinder

2004 ◽  
Vol 70 (695) ◽  
pp. 1762-1768 ◽  
Author(s):  
Takashi YAMADA ◽  
Toru SHIGECHI ◽  
Satoru MOMOKI ◽  
Kuniyasu KANEMARU ◽  
Tomohiko YAMAGUCHI
Keyword(s):  
Heat Transfer ◽  
Finite Length ◽  
Boiling Heat Transfer ◽  
Film Boiling

scholarly journals Subcooled Film Boiling Heat Transfer Around a Vertical Finite-Length Cylinder

2007 ◽  
Vol 73 (732) ◽  
pp. 1715-1722 ◽  
Author(s):  
Takashi YAMADA ◽  
Toru SHIGECHI ◽  
Satoru MOMOKI ◽  
Kuniyasu KANEMARU ◽  
Tomohiko YAMAGUCHI
Keyword(s):  
Heat Transfer ◽  
Finite Length ◽  
Boiling Heat Transfer ◽  
Film Boiling
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