Share

THERMAL CONDUCTIVITY OF HIGH-INSULATING BUILDING MATERIALS STUDIED BY THE TRANSIENT HOT STRIP METHOD.

[In Swedish. / En suédois.]

Author(s) : GUSTAFSSON S., KARAWACHI E., LUNDEN A.

Type of article: Periodical article

Summary

HEAT TRANSFER IN SOLIDS AND LIQUIDS CAN BE DETERMINED BY TRANSIENT HEATING OF A TEMPERATURE SENSOR (METAL STRIP OR VACUUM DEPOSITED LAYER) IN CONTACT WITH THE SAMPLE. THE SPAN OF APPLICATIONS IS VERY WIDE, SINCE IT IS POSSIBLE TO VARY THE DIMENSIONS OF THE STRIP AND THE TIME SPAN OF THE TRANSIENT RECORDING WITHIN A WIDE RANGE. THERMAL CONDUCTIVITY AND DIFFUSIVITY ARE OBTAINED SIMULTANEOUSLY, AND THUS ALSO THE THERMAL CAPACITY PER UNIT VOLUME. THE USEFULNESS OF THIS TECHNIQUE FOR INSULATING MATERIALS WITH A THERMAL CONDUCTIVITY WELL BELOW 0.1 W/MILLIK HAS BEEN STUDIED. SPECIAL ADVANTAGES ARE THAT THE MEASURING PROCEDURE NORMALLY TAKES LESS THAN 1 MINUTE, AND THAT THE TEMPERATURE INCREASE OF THE SENSOR IS LESS THAN 2 K.

Details

  • Original title: [In Swedish. / En suédois.]
  • Record ID : 1987-1285
  • Languages: Swedish
  • Source: Chalmers Univ. Technol., Dep. Phys. - 35 p.; fig.
  • Publication date: 1986

Links


See the source

Indexing