Thermal dispersion in AC calorimetry of needle-shaped specimens

1989 ◽  
Vol 22 (12) ◽  
pp. 988-992 ◽  
Author(s):  
M Ivanda ◽  
D Djurek
Keyword(s):  
Thermal Dispersion ◽  
Ac Calorimetry

Thermal Dispersion in Metal Foams

2011 ◽  
Author(s):  
Teresa B. Hoberg ◽  
Kenshiro Muramatsu ◽  
Erica M. Cherry ◽  
John K. Eaton
Keyword(s):  
Heat Transfer ◽  
Molecular Diffusion ◽  
Metal Foam ◽  
Heated Surface ◽  
High Surface ◽  
Metal Foams ◽  
Thermal Engineering ◽  
Transfer Model ◽  
Thermal Dispersion ◽  
Transverse Mixing

Open-cell metal foams are of interest for a variety of thermal engineering applications because of their high surface-to-volume ratio and high convective heat transfer coefficients relative to conventional fins. The tortuous flow path through the foam promotes rapid transverse mixing, a fact that is important in heat exchanger applications. Transverse mixing acts to spread heat away from a heated surface, bringing cooler fluid to the foam elements that are in direct contact with the surface. Heat is also spread by conduction in the foam ligaments. The present work addresses fully-coupled thermal dispersion in a metal foam. Dispersion of the thermal wake of a line source was measured. A conjugate heat transfer model was developed which showed good agreement with the data. The validated model was used to examine the complementary effects of the mechanical dispersion, molecular diffusion in the gas, and conduction in the solid.

Study on Ferroelectric Transistions of Vinylidene Fluoride/Trifluoroethylene Copolymers by Means of ac Calorimetry Technique

1992 ◽  
Vol 31 (Part 1, No. 3) ◽  
pp. 835-839 ◽  
Author(s):  
Hiroshi Ogura ◽  
Toshihiro Shimizu ◽  
Hideki Motoyama ◽  
Moyuru Ochiai ◽  
Akio Chiba
Keyword(s):  
Vinylidene Fluoride ◽  
Ac Calorimetry

Studies on Phase Transitions by AC Calorimetry

1981 ◽  
Vol 20 (11) ◽  
pp. 1995-2011 ◽  
Author(s):  
Ichiro Hatta ◽  
Akira J. Ikushima
Keyword(s):  
Phase Transitions ◽  
Ac Calorimetry
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