| Abstract: | Analytical and experimental investigations of the factors which affect the dynamic flow response characteristics of thermostatic expansion valves have been made. From the basic equations, the flow responses of a valve can be described by transfer functions and the Bode diagram. A measuring device can be developed to obtain the frequency responses of the flow rate of a valve. The comparison between the experimental values obtained from the frequency response measurements and the calculated values obtained from the analysis showed good agreement. |
