Research Of Regenerative Systems' Variable Condition Character Of Coal-fired Power Plant

The temperature difference of heater is one of the most important factors affecting thermal economical efficiency of coal-fire power plant. At present, coal-fire power plant's on-line monitoring system regards designed temperature difference as the standard number of the operating condition in most cases. It is not appropriate because variable load or variable construction will change the performance of the heat transmission and will change the number of the standard number of the temperature difference of heater. This thesis researches how to affect performance of the heat transmission when load or connect construction has changed and other equipments operate normally. And it calculated the standard number of the heater and gained the relation between the temperature difference and load founded on the base of detailed calculation for the steam turbine thermal system. It will supply important evidence for coal-fire power plant's on-line monitoring system and will be useful to direct the optimizing operation for the coal-fired power plant.