• experimental and numerical study of room airflow under stratum ventilation

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 527
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     this paper investigates the air movement, air temperature profile and gaseous contaminant transportation in an individual office with stratum ventilation. the room temperature is elevated compared with conventional standards. the experimental investigation is carried out in an environmental chamber with the presence of heat generating rectangles used to simulate an occupant and a computer. measurements of temperature, velocity, and co2 concentration are carried out for nine plumb lines in the chamber. up to sixteen points are measured along each plumb line. the experimental data of the aforesaid three parameters of the individual office in warm condition under stratum ventilation are presented. the experimental data collected are used to validate a re-normalization group (rng) kɛ turbulence model used for the warm condition. the agreements between the predicted values and experimental results are acceptable, which demonstrates the feasibility of simulating indoor airflows at elevated room temperature under stratum ventilation by the rng kɛ turbulence model.

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