Influence of clinic modes on people number distribution and fresh air requirement in outpatient registration halls

Compares and analyses the people number distribution and fresh air requirement in outpatient registration halls in the two hospitals with respective clinic modes of site registration-and-instant-clinic and appointment clinic by the field investigation and the scenario analysis method. The results show that the difference of the people number distribution in different days in a week in the hospital with appointment service is much less than that without appointment service, and the fresh air requirement in the outpatient registration hall is only 23.3 percent of the hospital without appointment service. The outpatient appointment reduces their waiting time in queue, improves the indoor air quality and decreases energy consumption of the fresh air system. Proposes a demand control ventilation system to be used in the registration hall with people number variation instead of the constant air volume ventilation system and states that this produces more obvious energy saving in the hospital without appointment service.