Test and Analysis of the Air Environment in a Room with Floor Fresh Air System and Floor Radiant Heating System
Air temperature and CO2 concentration in the bedroom of a residential model room with floor fresh air system and floor radiant heating system are tested.The thermal environment and pollutant concentration distribu-tion characteristics of the room are then analyzed.The experimental results show that the indoor temperature of the bedroom during radiant heating reaches the highest value at about 190 min,and then gradually becomes sta-ble.The steady temperature is slightly lower than the set temperature.Air temperature in high area is higher than that in low area,and the temperature difference between the head and the foot of sitting or standing people tends to be 0.3 ℃ and 0.6℃ respectively.The indoor temperature is mainly influenced by the floor temperature and outdoor temperature.The vertical distribution of indoor CO2 concentration is mainly affected by the positions of indoor people and the fresh air outlet.The discharge efficiency of the floor fresh air system is about 1.1～1.2,which is in line with the recommended value specified in ASHRAE 62.1 standard.
floor fresh air systemfloor radiant heating systemthermal environmentCO2 concentration
万方数据
维普
