Host: The Japan Society of Mechanical Engineers
Name : The 30th International Conference on Nuclear Engineering (ICONE30)
Date : May 21, 2023 - May 26, 2023
Heat-pipe cooled reactor (HPR), is a kind of reactor that uses heat pipe to conduct heat to export and utilize the heat generated by the reactor. HPR has broad application prospects in scenarios such as deep space exploration and propulsion, land-based core power, and deep sea submersible exploration. The heat transfer is achieved through the evaporation and condensation processes of the mass inside the heat pipe as well as the natural circulation flow. This process proceeds relatively slowly, resulting in an HPR with a large hysteresis. Due to this feature of the HPR, the electric power cannot respond quickly to the change in the responsiveness of the control rod. This poses a great challenge to the electric power control system. To further improve the electric power response, an HPR load dynamic matching method is proposed.
The response of nuclear power to the change in reactivity of the control rod is rapid and the electric power is changing with the nuclear power. The steady-state relationship between electric power and nuclear power can be fully utilized to dynamically adjust the set value of nuclear power when performing electric power regulation. Then the control rod can be quickly adjusted to meet the demand of nuclear power. Realize the dynamic adjustment of nuclear power setting value by using the relationship between nuclear power and electric power. While improving the response speed of electric power, the overshoot is reduced to ensure the maximum economic and safety benefits.
