Test study on a new type of VAV terminal device and VAV system

Analyses the features of commonly used VAV terminals. Presents the working principle of the new type of VAV terminal device, and compares the performance of all the mentioned VAV terminals. Makes performance test of the new type of VAV terminal and system in a test room. The results show that the new type of VAV terminal is desirable. Especially when it is used in cold air supply system, the control method of the system is reliable and the system is more energy efficient.