Experimental results on the freezing of saturated sands
Abstract
Experimental freezings of two liquids (water and tert-amyl-alcohol) in sands were carried on in a closed system. A sand with known grain size distribution, mineralogic composition and physical properties has been used. An experimental apparatus reproducing a one dimensional heat transfer phenomenon was set up. The low plane was thermally insulated and the upper one was kept at constant temperature. A procedure of vibration of the sand was employed to have a uniform liquid regain distribution at the beginning of the cooling. Temperature was measured at different distances from the cold source during the cooling. Liquid regain distributions were measured at the end of the freezing process with the oven drying method. Conductive heat transfer with change of phase was theoretically investigated. The energy equation was solved numerically with the finite difference method of Crank. The thermal conductivity of the wet sand was determined.
- Publication:
-
In CRREL Proc. of the 3d Intern. Symp. on Ground Freezing
- Pub Date:
- 1982
- Bibcode:
- 1982crre.proc..185G
- Keywords:
-
- Freezing;
- Moisture Content;
- Sands;
- Alcohols;
- Conductive Heat Transfer;
- Mathematical Models;
- Temperature Measurement;
- Thermal Conductivity;
- Geophysics