measuring device is the TESTO 445 Multi-functional ventilation/air-conditioning detector, which is equipped with sensors that could be used to detect a variety of environmental factors and air quality. Pattern-drawing and data-analysis can be conducted with the acquired data by RS 232 transmitting line and professional analyzing software ComSoft 3 (Testo 05540830) on the Windows platform. The functions of the sensors are to detect the environmental factors such as the wind speed, temperature and humidity, etc. The purposes of each experiment are briefly stated as follows and shown in Fig. 2.
2.1. Group 1 experiment (installation enhancement of turbine ventilators)