Thermal conductivity scanner (TCS): Petrophysics (Paperback) (ISBN-13: 9783656644811)

Internship Report from the year 2013 in the subject Geography / Earth Science - Miscellaneous, grade: 2,0, RWTH Aachen University (Lehrstuhl für Geologie, Geochemie und Lagerstätten des Erdöls und der Kohle), course: Petrophysics Practical Course, language: English, abstract: The thermal conductivity scanner (or TCS) measures the thermal conductivity (W/m∙K) via optical scanning method. In Figure 1 is a picture of the measurement shown. The thermal conductivity is a material property. High values are used for cooling systems to transport heat away from the material in a short time (e.g. fringes); low values are used as insulators, e.g. thermos flasks. With this method the heater and the detectors where moved along the sample from the right to the left. A sensor measures within the moving first the "cold" conductivity of the sample. Than the heater follows and a last sensor measures after the heating of 25 C the conductivity of the sample again. Before and after the sample are two reference sources laid with a defined thermal conductivity. These reference sources are need for the sensor calibration, too. To avoid errors there has always to be a gap of a few centimeters between the reference blocks and the measured sample. For the measuring the samples and the reference sources have to be colored with a thick black line to avoid overheating and reflection by lighter samples. The opening has to be covered completely by the painted part of the sample. To control this was a mirror underneath the apparatus. [...]

Author: Amalia Aventurin
ISBN-10: 3656644810
ISBN-13: 9783656644811
Publisher: Grin Verlag
Language: English
Published: 04/25/2014
Pages: 20
Format: Paperback
Weight: 0.08lbs
Size: 8.27h x 5.83w x 0.05d