陈章隆,闫锋哲,罗心越,刘佳玲,张复彤.移动式反应堆运输工况传热模拟研究[J].包装工程,2025,(3):300-305.
CHEN Zhanglong,YAN Fengzhe,LUO Xinyue,LIU Jialing,ZHANG Futong.Simulation Study of Heat Transfer from Transportable Reactors[J].Packaging Engineering,2025,(3):300-305. |
| 移动式反应堆运输工况传热模拟研究 |
| Simulation Study of Heat Transfer from Transportable Reactors |
| 投稿时间：2024-10-24 |
| DOI：10.19554/j.cnki.1001-3563.2025.03.036 |
| 中文关键词: 移动式反应堆 高温气冷堆 数值模拟 传热计算 |
| 英文关键词: transportable reactors high-temperature gas-cooled reactors numerical simulation heat transfer calculation transfer |
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| 中文摘要: |
| 目的 为满足GB 11806—2019《放射性物品安全运输规程》的要求，对移动式反应堆运输前停堆冷却过程中的传热特性和反应堆外侧金属集装箱表面的最高温度进行研究。方法 通过Fluent分析软件对现有设计条件下额定热功率为15 MW的移动式反应堆运输传热过程进行模拟，并在保持其他条件不变的情况下计算反应堆剩余衰变热功率对箱体表面温度的影响。结果 通过建模计算得出，在现有设计条件下，移动式反应堆在运输过程中金属集装箱表面的最高温度为69 ℃，当反应堆剩余衰变热功率为0.1 MW时，其箱体表面的最高温度为83.5 ℃，接近GB 11806—2019对放射性物品运输容器易接近表面的温度不高于85 ℃的要求。结论 进一步结合高温气冷堆停堆冷却时间与反应堆剩余热功率的对应关系，当反应堆额定热功率为13.9 MW时，只需停堆冷却1 d即可满足GB 11806—2019的要求;当反应堆额定热功率为24 MW时，需冷却10 d;当反应堆的额定热功率超过24 MW时，为了实现灵活部署的设计目标，需在现有基础上采取额外冷却方式对反应堆进行冷却。 |
| 英文摘要: |
| The work aims to study the heat transfer characteristics of transportable reactors during the shutdown and cooling process before transportation and the maximum temperature on the surface of the metal container outside the reactor, so as to meet the requirements of GB 11806-2019 Regulations for the Safe Transport of Radioactive Materials .The transportation heat transfer process of a mobile reactor with a rated thermal power of 15 MW under the existing design conditions was simulated by Fluent simulation software, and the influence of the residual decay heat of the reactor on the surface temperature of the tank was calculated under other conditions. After modeling and calculation, it was concluded that the maximum temperature on the surface of the metal container of the mobile reactor during transportation was 69 ℃ under the existing design conditions, and the maximum temperature of the surface of the tank was 83.5 ℃ when the residual decay heat of the reactor was 0.1 MW, which was close to the requirement of GB 11806-2019 that the temperature of the accessible surface of radioactive material transport container should not exceed 85 ℃. In conclusion,combined with the correspondence between the shutdown cooling time of the high-temperature gas-cooled reactor and the residual thermal power of the reactor, it is concluded that when the thermal power of the reactor reaches 13.9 MW, only one day of shutdown cooling is needed to meet the relevant requirements of GB 11806-2019. When the thermal power of the reactor reaches 24 MW, it takes 10 days to cool. And when the thermal power of the reactor exceeds 24 MW, only additional cooling methods can be used to cool the reactor to meet relevant requirements of GB 11806-2019. |
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