Abstract

Since the power load regulation capability of the combined heat and power (CHP) generation plant is weaker than that of the conventional thermal power plant, it is of great significance to decouple the strong relation between electricity generation and heat supply. The thermal heat storage performance of the water thermocline heat storage tank designed to apply to the CHP plant is presented. The tank is supposed to charge heat by heat exchanger with the steam turbine extraction and provide hot water to the heat-supply grid directly. By experiments, the static and dynamic characteristics of the thermocline is studied and some regular patterns are discussed, followed by an effective method to reduce the thermocline expansion, which may be useful for the design and operation of the thermocline heat storage tank.

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