The results indicate that the maximal indoor temperature difference between test hot-box(with PV-Trombe wall) and the reference hot-box(without PV-Trombe wall) can reach to 6 ℃,the maximal difference between the indoor temperature of test-hot box and the ambient can reach to 18 ℃.

The control process of indoor temperature by thermostat and the important concepts concerned in the design are introduced.

In order to meet need of the Energy Saving Department to measure and control room temperature in public building,a measuring and controlling system have been developed which can transmit the data of room temperature in every public building in a city.

Physical mechanism of temperature changing of cast iron in the process of drawing and pressing;

The feasibility of adopting the method of variable chilled water temperature with DDC is proved,and the control effect of room temperature and relative humidity and energy conservation effect by adopting variable chilled water temperature with DDC under different load is studied.