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With the reduction in the world's energy reserves and human advocate the beginning of a low-carbon life, find new energy sources to replace fossil energy has become a topic of concern for all mankind. Solar energy is one of the world's most abundant permanent energy, China's northwest desert is a world-class solar resource-rich area. Rational development and utilization of resources, in the Inner Mongolia Autonomous Region Development desert solar has a unique advantage. Solar chimney power generation technology is a new way for large-scale development and utilization of solar energy resources, The inherently simple equipment, low investment costs, good environmental effects, etc., plus a reasonable scale of the design, you can achieve good economic and social benefits. In this paper, the proposed Wuhai desert solar chimney power generation system for the study of background the tower Hang part of the detailed design and research. Field investigations and studies of the proposed power plant to obtain detailed data of solar energy resources in the region, including in the area the total annual radiation 6000MJ/m2a of, maximum temperature of 40.2 ° C, annual sunshine hours than 3084h, the duration of sunshine and the radiation intensity condition is very suitable for the construction of solar chimney power station. Tower Hang in solar chimney power generation system is a key part, rely on the pumping action of the tower Hang, the system can produce a powerful airflow, power station thermal power. Reasonable height and diameter of the tower Hang is a necessary condition for the normal and efficient operation of the power station. The combination of solar chimney power generation system based on engineering design ideas tower Hang own characteristics into account, the analysis to get the Wuhai desert solar chimney power generation system tower Hang proposed design height of 100m, a diameter of 8m, the shape of straight shape. The design basis of the results, the establishment of the physical and mathematical model of the project, starting from the governing equations of fluid flow and heat transfer process set by certain assumptions and boundary conditions, the application of CFD software for numerical simulation. The simulation results obtained variation of flow field distribution in the system, and to do a comparison, trends and design assumptions consistent with the design value. The main reason for the analog values ??of the pressure drop and flow rate is too large the influence of the turbine and the friction loss is not considered in the simulation. Finally, in order to verify the design height and diameter of the reasonableness of, in the case of the other parameters fixed, select a different tower Hang height, the diameter of the simulation. Results towers Hang height greater the greater the power generation, the smaller the diameter the greater power generation. From power generation and power generation costs into account, given Wuhai desert solar chimney power generation system reference design is reasonable.
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