Dynamic Simulation Model Of Receiver Of Solar Power Tower Plant

In recent years, the solar power tower technology has been developing fast and a plenty of pilot plants have been built and tested with the rapid increase in energy demand. Solar thermal tower power is a relatively cheap and environmentally-friendly renewable energy technology which has a a very important role in energy conservation and environmental protection. As an important component in the radiation-heat conversion process, receiver plays an very important role in operation security of the solar power tower plant. This paper took overheating cavity receiver of Badaling1MW solar power tower plant as study object, developed a dynamic flow calculation model for paratactic evaporating heating surfaces based on dynamic simulation mathematic model of average flow distribution in cavity receiver’s evaporating heating surfaces, simulated the dynamic characteristic of cavity receiver, and obtained the change law of working medium mass flow in different heating surfaces and metal temperature varied with solar radiation. The results can provide some guidance to design the receiver system and to formulate the control and operating strategy for solar power tower plant.As part work of developing simulator of Badaling1MW solar power tower plant, the paper mainly study the dynamic characteristic of cavity receiver system. Based on the working mechanism of the cavity receiver, This paper proposed a dynamic mathematic model of cavity receiver’s evaporating heating surfaces and develop a dynamic simulation algorithm using Microsoft Visual C++6.0as the development tool.According to the simulation model of Badaling solar thermal tower power plant, the paper carried out a series of simulation experiments, modeled the dynamic characteristics of cavity receiver system, and then obtained the law of flow distribution in evaporating heating surfaces of receiver system. Through the solar radiation disturbance experiments, this study finds the dynamic responsive curves of equipment module in receiver thermodynamic system and receiver’s water power system. The simulation results can be good references for design and operation of solar thermal power tower system.