Practical means of taking thermal conductivity measurements with a spherical probe
Abstract
A modification is proposed for the spherical probe method of measuring thermal conductivity of granular substances. The temperature-time functions are compared not just at two points, but throughout the measurement interval, with theoretical functions. The variables are transformed in such a manner that they are related with the aid of linear functions. This simplifies interpretation of the data by graphs or linear smoothing calculations, and increases the accuracy of the technique.
- Publication:
-
International Journal of Heat and Mass Transfer
- Pub Date:
- December 1976
- DOI:
- 10.1016/0017-9310(76)90073-9
- Bibcode:
- 1976IJHMT..19.1433R
- Keywords:
-
- Granular Materials;
- Heat Measurement;
- Instrument Errors;
- Temperature Effects;
- Thermal Conductivity;
- Time Dependence;
- Data Smoothing;
- Error Analysis;
- Graphs (Charts);
- Probes;
- Spheres;
- Transformations (Mathematics);
- Instrumentation and Photography