The Research Based On The Simulation Of Closed Brayton Cycle For Space Solar Power

The concept of Space Solar Power(SSP) was first put forward in 1968 by the American engineer Peter Glaser, which had made a great progress after decades years of development and research. Our country had made some development breakthrough on this technology. But because of the late start at this area, many key points are still premature, which resulted in the higher initial cost comparing with the transition set on the earth. So the effort of trying to reduce the initial cost and the running cost by research has become the most important task in the Space solar power technology in our country.This paper took a Space solar power project as the objection, built the dynamic math model and the simulation model of it combining with the method of model simulation and the ACSL Language. On the same time, some disturb tests were taken on the model then analyzed the result and the data. The main work and the conclusion are as follows:Based on the parameter of the 10kW space solar power system designed by our own country. Built up the dynamic math model of the heater, radiator, thimble reheat, single turbine. And then applied the ACSL language to compiled the corresponding simulation program, analyzed the steady state parameter. After which time, four test including a. the heat disturbing test in the heater; b. the heat coefficient changing of the heater and reheat; c. the leakage test of the working substance; d. the damage test for the heat pipes of the radiator, were taken. After the analyzing, the indication is as follows:1)Comparing with the designed value, the steady state error is less than 5%, the trend of the dynamic characteristic parameters is too fit the real theory analyze.2)The effect after the inert gases being replaced by the dry air is almost the same. The error too is in the scope allowed.3)The chosen single case turbine is suitable to satisfy the compress rate demand in the project, and if the thimble reheat take the bushing heater as the model, the simple parameter change of the bush and working path can make it reach the demand.4)After the adjustment to some of the facilities, the system's outcome after all the tests reflected the dynamic characteristic of every part accurately.The paper simulated the 10kW space solar power system, the outcome and the test data can be used as the reference to choose the facility or the working substance.