In the large space, for example in large-dome, the space is often divided into some zones without partition walls for air conditioning. In this case the following are problematic, The first problem is that it is difficult to control the temperature of the target zone considering the influence by the supply air temperature in the adjacent zone for air conditioning. The second problem is that it is difficult to set the temperature sensor for air conditioning control at the location in which the temperature means the average temperature in the target zone. To clarify these problems, we set 2 parameters: the temperature of the supply air and the running of the circulating airflow fan, and conducted a scale-model experiment and examined the temperature distribution. We studied concerning the location of the temperature sensor for air conditioning control. As a result, the problems were clarified like follows. 1) In case the temperature in the target zone for air conditioning is affected by the supply air temperature of the adjacent zone, the supply air temperature in the target zone should be determined by considering the temperature in the adjacent zone. 2) In case the temperature sensor could not be set at the location in which the temperature means the average temperature in the zone, the result of the experiment made sure the following. By considering the difference between the temperature in the sensing point and the average temperature in the zone, the temperature in the zone can be controlled.
Study on the estimate of the air conditioning control systems in large dome.
Sweden, Stockholm, KTH Building Services Engineering, 1998, proceedings of Roomvent 98: 6th International Conference on Air Distribution in Rooms, held June 14-17 1998 in Stockholm, Sweden, edited by Elisabeth Mundt and Tor-Goran Malmstrom, Volume 2