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EFFECT OF ABSORPTION OF RADIATION ON THERMAL CONDUCTIVITY. MEASUREMENTS BY THE TRANSIENT HOT-WIRE TECHNIQUE.

Author(s) : MENASHE J., WAKEHAM W. A.

Type of article: Article

Summary

THE FULL INTEGRO-PARTIAL DIFFERENTIAL EQUATION GOVERNING THE SIMULTANEOUS CONDUCTION AND RADIATION IN A TRANSIENT HOT-WIRE CELL IS SIMPLIFIED BY MEANS OF A SMALL NUMBER OF PHYSICALLY REASONABLE ASSUMPTIONS AND SOLVED NUMERICALLY. THE NUMERICAL SOLUTION HAS BEEN EMPLOYED TO DEDUCE THE EFFECT OF RADIATION ABSORPTION ON THE WIRE TEMPERATURE RISE IN MEASUREMENTS OF THREE NORMAL ALKANES. A PROCEDURE WHEREBY THERMAL CONDUCTIVITY DATA MAY BE CORRECTED FOR THE EFFECTS OF RADIATION IS DESCRIBED AND THE CORRECTION FACTOR GIVEN FOR N-HEPTANE, N-NONANE AND N-UNDECANE IN THE TEMPERATURE RANGE 308-348 K (35-75 DEG C) AND THE PRESSURES IN THE RANGE 0.1-500 MPASCAL.

Details

  • Original title: EFFECT OF ABSORPTION OF RADIATION ON THERMAL CONDUCTIVITY. MEASUREMENTS BY THE TRANSIENT HOT-WIRE TECHNIQUE.
  • Record ID : 1983-0099
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 25 - n. 5
  • Publication date: 1982/05

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