Presents the water dynamic features of subcritical natural circulation and controlled circulation, the relationship between downstream head, kinetic head and resistance, numerical expressions of actual and theoretical circulation factor and degree of overcooling, etc, and the criterion (i.

Analysis on circulating control characteristic of open to air check valve for high pressure feed-water system;

Application of Single Transducer Cycle Control on Water Supply System at Constant Pressure;

For the spark-ignition LPG-methanol engine whose electronic-controlled injection was done in the inlet,the cycle injection quality ratio of LPG-methanol,the injection timing of LPG lagging behind methanol,and the influence of ambient temperature on cold start performance were researched on the base of cycle control method.

In the application of PLC Technology, the frequent faults in the program design of PLC time sequence and cycle control are that sequence act and cycle control controlled by TIM can′t be implemented.

The transient firing behavior of a spark-ignition engine fueled with gasoline,liquid petroleum gas(LPG) and methanol respectively during cold start was investigated experimentally by means of cycle-by-cycle control strategy on a 125 mL-single-cylinder four-stroke electronically controlled fuel injection engine.

The effects of the injection timing and the ignition timing of methanol on the firing behavior and HC emission of the engine were studied by means of the cycle-by-cycle control technique.