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IMPACT OF AIR HUMIDITY ON THERMAL COMFORT DURING STEP-CHANGES.

Author(s) : DEAR R. J. de, KNUDSEN H. N., FANGER P. O.

Summary

TWELVE MALE SUBJECTS AND A MANNEQUIN WERE STUDIED FOR THEIR THERMAL, PHYSIOLOGICAL, AND SUBJECTIVE RESPONSES TO HUMIDITY STEP-CHANGES. SUBJECTS SPENT HALF OF THE THREE-HOUR EXPERIMENT IN 20% RH AND THE REMAINDER IN 80% RH, WHILE THE OPERATIVE TEMPERATURE WAS HELD CONSTANT. SUBJECTS AND THE MANNEQUIN WERE NAKED, OR WORE 10 CLO WOOLEN OR POLYESTER ENSEMBLES. THERMAL SENSATION RESPONSES TO THE HUMIDITY STEP-CHANGES WERE GREATEST WHILE THE SUBJECTS WERE WEARING WOOL, BUT THERE WERE SIGNIFICANT SHORT-TERM EFFECTS AFTER THE NAKED AND POLYESTER HUMIDITY DOWN-STEPS. GENERALLY THE HUMIDITY DOWN-STEPS PRODUCED A BIGGER IMPACT ON THERMAL SENSATIONS.

Details

  • Original title: IMPACT OF AIR HUMIDITY ON THERMAL COMFORT DURING STEP-CHANGES.
  • Record ID : 1991-0351
  • Languages: English
  • Publication date: 1989
  • Source: Source: ASHRAE Trans.
    vol. 95; n. 2; 336-350; 18 fig.; 7 tabl.; 20 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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