reactivity excursion

简明释义

反应性急速上升

英英释义

例句

1.The engineers implemented strict protocols to prevent a reactivity excursion 反应性偏移 during the fuel loading process.

工程师实施严格的协议，以防止在燃料装载过程中发生反应性偏移。

2.During the nuclear reactor's operation, the team monitored for any signs of reactivity excursion 反应性偏移 that could indicate potential safety issues.

在核反应堆运行期间，团队监测任何可能表明潜在安全问题的反应性偏移。

3.After the unexpected reactivity excursion 反应性偏移, the safety systems were evaluated for effectiveness.

在意外的反应性偏移之后，安全系统的有效性得到了评估。

4.The training session focused on how to respond to a reactivity excursion 反应性偏移 in a controlled environment.

培训课程集中在如何在受控环境中应对反应性偏移。

5.Operators are trained to recognize early signs of a reactivity excursion 反应性偏移 to ensure timely intervention.

操作员接受培训，以识别反应性偏移的早期迹象，以确保及时干预。

作文

In the field of nuclear engineering, understanding the concept of reactivity excursion is crucial for ensuring the safety and efficiency of nuclear reactors. A reactivity excursion refers to a rapid increase in the reactivity of a nuclear reactor, which can lead to an uncontrolled chain reaction if not managed properly. This phenomenon can occur due to various reasons, including changes in the reactor's configuration, fluctuations in temperature, or the insertion of control rods. It is essential for engineers and operators to monitor the reactor closely to prevent such excursions from escalating into more serious situations.The implications of a reactivity excursion are significant. If a reactor experiences a sudden spike in reactivity, it can lead to a rapid increase in power output, potentially resulting in overheating and even core damage. Therefore, understanding the dynamics of reactivity is fundamental for the safe operation of nuclear facilities. Operators must be trained to recognize the signs of a potential excursion and take immediate corrective actions.One of the primary causes of reactivity excursion is the movement of control rods, which are used to regulate the fission process within the reactor. When control rods are withdrawn too quickly or not inserted back into the reactor core promptly, the reactivity can increase unexpectedly. This is why strict protocols must be followed during operations involving control rods. Additionally, thermal feedback mechanisms can also contribute to reactivity excursions. As the reactor heats up, the properties of the coolant and fuel can change, affecting the overall reactivity of the system.To mitigate the risks associated with reactivity excursion, advanced monitoring systems are implemented in modern reactors. These systems provide real-time data on the reactor's status, allowing operators to make informed decisions. Furthermore, safety protocols and emergency procedures are established to address any potential excursions swiftly and effectively. Regular training and simulations help ensure that all personnel are prepared to respond appropriately to such incidents.In conclusion, the concept of reactivity excursion is a critical aspect of nuclear reactor operation. Understanding its causes, implications, and preventive measures is vital for maintaining safety in nuclear energy production. As technology continues to advance, ongoing research and development will enhance our ability to predict and manage reactivity excursions, ultimately leading to safer and more efficient nuclear power generation. The importance of this knowledge cannot be overstated, as it plays a key role in the sustainable development of nuclear energy, which is increasingly seen as a viable alternative to fossil fuels in combating climate change. Therefore, both current and future nuclear engineers must prioritize their understanding of reactivity excursion to ensure the integrity and safety of nuclear operations worldwide.

在核工程领域，理解“反应性激增”的概念对于确保核反应堆的安全和效率至关重要。“反应性激增”是指核反应堆中反应性的快速增加，如果不加以管理，可能导致失控的链式反应。该现象可能由于多种原因而发生，包括反应堆配置的变化、温度波动或控制棒的插入。工程师和操作员必须密切监测反应堆，以防止这种激增升级为更严重的情况。“反应性激增”的影响是显著的。如果反应堆经历了反应性的突然激增，可能导致功率输出的快速增加，最终可能导致过热甚至核心损坏。因此，理解反应性的动态对于核设施的安全运行是根本性的。操作员必须接受培训，以识别潜在激增的迹象，并采取立即纠正措施。“反应性激增”的主要原因之一是控制棒的移动，控制棒用于调节反应堆内的裂变过程。当控制棒被过快地拔出或未能及时插回反应堆核心时，反应性可能会意外增加。这就是为什么在涉及控制棒的操作过程中必须遵循严格的协议。此外，热反馈机制也可能导致反应性激增。随着反应堆的加热，冷却剂和燃料的性质可能会发生变化，从而影响系统的整体反应性。为了减轻与“反应性激增”相关的风险，现代反应堆实施了先进的监测系统。这些系统提供反应堆状态的实时数据，使操作员能够做出明智的决策。此外，建立了安全协议和应急程序，以迅速有效地应对任何潜在的激增。定期培训和模拟有助于确保所有人员准备好适当地响应此类事件。总之，“反应性激增”的概念是核反应堆操作的关键方面。理解其原因、影响及预防措施对于维护核能生产的安全至关重要。随着技术的不断进步，持续的研究和开发将增强我们预测和管理反应性激增的能力，最终导致更安全、更高效的核能发电。这个知识的重要性不容小觑，因为它在核能的可持续发展中发挥着关键作用，而核能越来越被视为应对气候变化的化石燃料的可行替代方案。因此，当前和未来的核工程师必须优先理解“反应性激增”，以确保全球核操作的完整性和安全性。