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LOCAL THERMAL DISCOMFORT DUE TO DRAFT AND VERTICAL TEMPERATURE DIFFERENCE IN ROOMS WITH DISPLACEMENT VENTILATION.

Author(s) : MELIKOV A. K., NIELSEN J. B.

Summary

THE PAPER EVALUATES THE THERMAL COMFORT CONDITIONS IN 18 SPACES IN PRACTICE VENTILATED BY THE DISPLACEMENT VENTILATION PRINCIPLE RECENTLY DEVELOPED IN SCANDINAVIA. THE RISK OF LOCAL DISCOMFORT DUE TO DRAFT AND VERTICAL TEMPERATURE DIFFERENCE IS ESTIMATED BY COMPREHENSIVE MEASUREMENTS OF MEAN VELOCITY, TURBULENCE INTENSITY, AND AIR TEMPERATURE. THE MEASURING HEIGHTS FOR AIR TEMPERATURE AND AIR MOVEMENT RECOMMENDED IN THE STANDARDS (0.1, 0. 6, 1.1, AND 1.7 M) WERE NOT SUFFICIENT TO ESTIMATE DRAFT RISK IN THE OCCUPIED ZONE. MEAN VELOCITY, TURBULENCE INTENSITY, AIR TEMPERATURE, PREDICTED PERCENT DISSATISFIED DUE TO DRAFT, AND VERTICAL TEMPERATURE DIFFERENCE WERE FOUND TO BE FUNCTIONS OF EXHAUST AND SUPPLY AIR TEMPERATURE DIFFERENCE AND AIR FLOW RATE.

Details

  • Original title: LOCAL THERMAL DISCOMFORT DUE TO DRAFT AND VERTICAL TEMPERATURE DIFFERENCE IN ROOMS WITH DISPLACEMENT VENTILATION.
  • Record ID : 1991-0796
  • Languages: English
  • Publication date: 1989
  • Source: Source: ASHRAE Trans.
    vol. 95; n. 2; 1050-1057; 12 fig.; 1 tabl.; 16 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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