3D axisymmetric CFD model is developed for a solar chimney power plant (SCPP) in Manzanares, Spain, and potential impacts of chimney height ($H$) on main performance parameters are comprehensively analysed. Mesh-independent solutions are achieved, and accuracy justification is done over the previous numerical and experimental attempts prior to parametric research. Discrete ordinate (DO) non-grey radiation model with solar ray tracing approach is adopted in the research. A very good accordance is achieved between the numerical findings and in-situ data. For five different $H$ values, temperature, pressure and velocity distributions within the pilot plant are achieved as well as maximum air velocity, mass flow rate of air, temperature rise in collector, dynamic pressure difference at the turbine position, overall system efficiency and potential electrical power. It is found that maximum air velocity thus mass flow rate shows an exponential growth in $H$. On the contrary, temperature rise in collector notably reduces with the increasing $H$. Overall system efficiency is determined to be 0.67% when$H$ = 500 m. Power output ($P$) linearly rises with $H$. The system is capable of generating 55 and 134 kW electrical power, for$H$ = 200 and 500 m, respectively.

3D轴对称CFD模型是为西班牙曼萨纳雷斯的太阳能烟囱发电厂（SCPP）开发的，它对烟囱高度的潜在影响（$H$）上的主要性能参数进行了综合分析。实现了与网格无关的解决方案，并且在进行参数研究之前，已对之前的数值和实验尝试进行了准确性证明。本研究采用太阳射线追踪法的离散度（DO）非灰色辐射模型。在数值结果和现场数据之间取得了很好的一致性。对于五种不同$H$获得了中试装置中的数值，温度，压力和速度分布，以及最大风速，空气质量流量，集热器中的温度升高，涡轮机位置处的动压差，整体系统效率和潜在的电力。发现最大空气速度从而质量流量呈指数增长。$H$。相反，集热器的温度升高随着温度的升高而明显降低$H$。在以下情况下，系统总效率确定为0.67％$H$ = 500 m。功率输出 （$P$）与 $H$。该系统能够产生55和134 kW的电力，用于$H$ = 200和500 m。