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In order to improve the inherent safety of the Molten Salt Reactor (MSR), a concept of passive residual heat removal system (PRHRS) for the 10MW Molten Salt Reactor Experiment (MSRE) was put forward. Its transient characteristics were investigated by developing a model of it using C++ code. The effects of environmental temperature, finned tube number and chimney height on the PRHRS were analyzed. The results show that the PRHRS can remove the decay heat timely. Three natural circulations are established in the PRHRS when it begins to operate. With the decay heat power reducing, the PRHRS can automatically adjust its heat removal ability. It needs not any external power for the PRHRS to operate, which enhances the inherent safety and reliability of the reactor, especially under the condition that power plants lose power.

Bond Graph theory is a powerful tool in the field of dynamics and multiple-energy domains analyses of complex engineering systems. On the purpose of analyses the dynamic characters of Stirling Engine fuel supply system, the author built a Stirling Engine fuel supply system model based on Bond Graph theory, derived the state equations including pump system and hydraulic system equations and built the Simulink model for simulation, finally verified the accuracy of the model through experiment.

The application of uCOS-II and LabVIEW in the development of Stirling Engine fuel supply electric control system was described in this paper. In embedded system, a control program with multilayer structure was designed based on uCOS-II. In upper computer, a LabVIEW virtual instruments IDE was used to achieve features such as remote control, identify series number automatically, display and record signal in real-time. The operation of the whole control system was proved precisely and stability through experiment.