Determination of thermal properties using a shielded thermocouple

• A new version of the hot-wire method for measuring thermal conductivity is proposed. The sheath of a differential Thermocoax wire is heated by an electric current and the temperature is recorded before, during and after heating. An on-line desk computer fits the theoretical expression for the temperature to the data. Thermal conductivity as well as heat capacity for a fluid or plastic medium surrounding the wire may be determined.

Ämnesord

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Nyckelord

Thermal conductivity

heat capacity

specific heat

fluid

solid

method

computer-based

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)