Simple apparatus for the measurement of thermal diffusivity between 80–500 K using the modified Ångström method

1980 ◽  
Vol 51 (12) ◽  
pp. 1694-1699 ◽  
Author(s):  
J. W. Vandersande ◽  
R. O. Pohl
Keyword(s):  
Thermal Diffusivity ◽  
Simple Apparatus ◽  
Modified Angstrom Method

scholarly journals Estimation of the Thermal Diffusivity of Beans Using a Simple Apparatus

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Akinjide A. Akinola ◽  
Oluwatobi B Adeniji
Keyword(s):  
Heat Conduction ◽  
Thermal Diffusivity ◽  
Cylindrical Tube ◽  
Transient Heat Conduction ◽  
Bath Temperature ◽  
Water Bath ◽  
Simple Apparatus ◽  
Constant Temperature Water Bath ◽  
Sample Range ◽  
Thermal Diffusivities

A simple apparatus for the determination of the thermal diffusivity of black-eyed beans samples, using the transient heat conduction method is presented. This apparatus is a stainless steel cylindrical tube, containing the sample, placed into a constant temperature water bath. The variation of the temperature at the center of the tube with time is recorded. The thermal diffusivities were determined from the temperature-time relationship data of the sample, and the dimensions of the equipment.  The estimated thermal diffusivity values of the samples varied between 4.70 x 10-8 to 6.94 x 10-8 and 5.26 x 10-8 to 7.68 x 10-8 when the temperature in the water bath was 50oC and 60oC, respectively.  Also, the thermal diffusivity was higher when the water bath temperature was 60oC rather than 50oC for the sample range of particle sizes studied. As black-eyed beans are a staple food in many parts of West African, they are grown, harvested, and stored. The thermal diffusivity information is useful in determining the behaviour of this Argo-product when stored. Keywords: Beans, Thermal Diffusivity, Transient Heat Conduction Method.

Thermal diffusivity of polyurethane foams measured by the modified ångström method

1999 ◽  
Vol 39 (9) ◽  
pp. 1689-1695 ◽  
Author(s):  
Aleksander Prociak ◽  
Jan Pielichowski ◽  
Tomasz Sterzyñski
Keyword(s):  
Thermal Diffusivity ◽  
Polyurethane Foams ◽  
Modified Angstrom Method

Thermal diffusivity of polymers by modified angström method

2010 ◽  
Vol 29 (1) ◽  
pp. 107-112 ◽  
Author(s):  
Wilson Nunes dos Santos ◽  
Jorge Nicolau dos Santos ◽  
Paul Mummery ◽  
Andrew Wallwork
Keyword(s):  
Thermal Diffusivity ◽  
Modified Angstrom Method

Simple apparatus for continuous nebulisation of prostacyclin

Anaesthesia ◽  
2000 ◽  
Vol 55 (8) ◽  
pp. 820-821
Author(s):  
P. V. Van Heerden
Keyword(s):  
Simple Apparatus

Photopyroelectric Measurement of the Thermal Diffusivity of Recrystallized High Purity Aluminum

1991 ◽  
Vol 3 (1) ◽  
pp. 69-80
Author(s):  
S. B. Peralta ◽  
S. C. Ellis ◽  
C. Christofides ◽  
A. Mandeiis ◽  
H. Sang ◽  
...  
Keyword(s):  
Thermal Diffusivity ◽  
High Purity ◽  
High Purity Aluminum

THERMAL DIFFUSIVITY OF POLYMER FOILS - SEMICRYSTALLINE PETP AND PE - AS A FUNCTION OF DRAWING

1983 ◽  
Vol 44 (C6) ◽  
pp. C6-463-C6-467 ◽  
Author(s):  
B. Merté ◽  
P. Korpiun ◽  
E. Lüscher ◽  
R. Tilgner
Keyword(s):  
Thermal Diffusivity ◽  
Polymer Foils
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