THERMAL CONDUCTIVITY OF BULK ORE CONCENTRATES

Thermal conductivities were determined for two copper and two zinc sulphide ore concentrates from Noranda Mines. The determinations were carried out by the transient probe method at three temperatures, +5 degrees C and -5 and -15 degrees C, for four moisture contents ranging from 2 to 12 percent. At the lowest moisture content the conductivity of the frozen ore was lower than in the unfrozen state; at higher moisture contents the conductivity of the frozen ore was considerably higher than in the unfrozen state. The thermal conductivity in the frozen state also increased as the temperature was lowered. In most respects the thermal conductivity response of the ores to changes in moisture content, temperature, and density were similar to those of soils. Sieve and hydrometer analysis as well as specific gravity were carried out for characterization of the material. A statistical analysis of the results is included in Appendix A.

• Corporate Authors:

  Canadian Institute of Guided Ground Transport

  Queen's University
  Kingston, Ontario K7L 3N6,   Canada 
• Authors:
  • Penner, E
• Publication Date: 1976-8

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 49 p.

Subject/Index Terms

• TRT Terms: Bulk cargo; Bulk cargo handling; Cargo handling; Cold weather; Freezing; Freight transportation; Heating (Structures); Logistics; Minerals; Open top cars; Operations; Ores; Thaw; Thermal properties; Traffic
• Old TRIS Terms: Bulk handling; Bulk ore; Cargo heating; Mineral traffic; Ore traffic
• Subject Areas: Administration and Management; Freight Transportation; Marine Transportation; Operations and Traffic Management; Railroads;

Filing Info

• Accession Number: 00142511
• Record Type: Publication
• Source Agency: Canadian Institute of Guided Ground Transport
• Report/Paper Numbers: CIGGT-76-8, NRC 388 Final Rpt., NRC 388
• Files: TRIS
• Created Date: Dec 1 1980 12:00AM