A Laboratory Experiment for Monitoring the Time Development of Water Freezing Processes in Porous Materials and Its Computational Analysis

• Published in: International journal of thermophysics Vol. 37; no. 12; pp. 1 - 11
• Main Authors: Koci, Jan, Madera, Jiri, Cerny, Robert
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.12.2016; Springer Nature B.V
• Subjects: Classical Mechanics; Condensed Matter Physics; Environmental monitoring; Freezing; Geophysics; Heat transfer; Humidity; Industrial Chemistry/Chemical Engineering; Mathematical models; Moisture; Moisture and Thermal Measurements in Industry and Science; Parameter identification; Physical Chemistry; Physics; Physics and Astronomy; Porous materials; Saturation; Tempmeko 2016; TEMPMEKO 2016: Selected Papers of the 13th International Symposium on Temperature; Thermodynamics; Inverse analysis; Water freezing processes; Water/ice phase changes; Computational modeling; Low temperatures; Porous materials
• ISSN: 0195-928X; 1572-9567
• DOI: 10.1007/s10765-016-2133-2

In this paper, a simple laboratory experiment for monitoring the time development of water freezing processes in porous materials is designed which is supposed to be used for the effective heat capacity model verification and adjustment. In the laboratory experiment, four samples with different levels of water saturation are exposed to a subzero-temperature environment and the temperature fields in the samples are monitored for a characteristic period of time. The data obtained in the experiment are then subjected to inverse analysis in order to identify and calibrate the input parameters of mathematical models describing the heat transfer processes in the analyzed system considering different levels of moisture saturation.