In order to achieve high power generation efficiency, facility compactness, high safety, and high coexistence with fuel tritium in the 3 G W_th class FFHR(Force Free Helical Reactor) power plant, optimization, performance and operation scenario of the power generation system of the power plant model using the axial flow type uniaxial supercritical CO₂ gas turbine power generation system were examined. As a result, the following conclusions were obtained.

(1) The most efficient and compact axial flow uniaxial design supercritical CO₂ gas turbine power generation system suitable for 3 G W_thFFHR power plant has a maximum heat capacity of 1.5GW_th×2, and the gas turbine conversion rate at that time was evaluated as 46.9 %(= 1,267MWe/2,700MW_th). Therefore, split connection with two power generation systems is optimal for a 3 G W_th class FFHR power plant. Here, the operating speed of the turbo equipment was set to 3600 rpm in order to adapt this plant model to the power supply system in Japan.

(2) Simultaneous supply of 818MWe/300 s electricity and 300MW_th/30days heat is required at startup of the FFHR.

(3) The in-house power during steady operation under the self-ignition condition was reduced to about 31.7MWe, and the amount of power generated at the transmission end was evaluated as 1,234MWe.

为了实现高发电效率，设备体积小，高安全性和高共存于3 GW燃料氚_次类FFHR（力自由螺旋反应堆）的发电系统的电厂，优化，性能和运行情况研究了使用轴流式单轴超临界CO ₂燃气轮机发电系统的电站模型。结果，获得以下结论。

（1）的最有效的和紧凑的轴向流动单轴设计超临界二氧化碳₂燃气轮机发电系统适合于3 GW_第FFHR发电站具有的1.5GW的最大热容量_次×2，和此时的燃气轮机转化率为评估为46.9％（= 1,267MWe / 2,700MW _th）。因此，具有两个发电系统连接分割为3 GW最佳_个类FFHR发电厂。在这里，涡轮设备的运行速度设置为3600 rpm，以使该工厂模型适应日本的电源系统。

（2）FFHR启动时需要同时提供818MWe / 300 s的电力和300MW _th / 30天的热量。

（3）在自燃条件下稳定运行期间的室内功率降低到大约31.7MWe，并且在传输端产生的电量估计为1,234MWe。