tubular fuel element

简明释义

管状燃料元件

英英释义

例句

1.Engineers are testing the durability of the tubular fuel element under extreme conditions.

工程师们正在测试在极端条件下管状燃料元件的耐久性。

2.The reactor's efficiency improved significantly after the installation of new tubular fuel element.

在安装新的管状燃料元件后，反应堆的效率显著提高。

3.The design of the tubular fuel element allows for better heat transfer.

这种管状燃料元件的设计允许更好的热传导。

4.The tubular fuel element is a crucial component in nuclear reactors.

管状燃料元件是核反应堆中的一个关键组件。

5.Maintenance teams regularly inspect the tubular fuel element for signs of wear.

维护团队定期检查管状燃料元件是否有磨损迹象。

作文

In the field of nuclear engineering, the design and functionality of reactors are crucial for ensuring safe and efficient energy production. One of the key components in many types of nuclear reactors is the tubular fuel element (管状燃料元件). This specialized fuel assembly plays a vital role in the nuclear fission process, which is the mechanism that generates heat and, subsequently, energy in a reactor. Understanding the structure and purpose of the tubular fuel element is essential for both engineers and scientists working in this domain.The tubular fuel element is typically characterized by its cylindrical shape, which allows for a high surface area-to-volume ratio. This design is advantageous because it facilitates effective heat transfer, a critical aspect when managing the intense temperatures generated during nuclear reactions. The materials used to construct these fuel elements must withstand extreme conditions, including high radiation levels and corrosive environments. Commonly, uranium dioxide is used as the fuel material, encapsulated within a protective cladding made from zirconium alloy or stainless steel. This combination ensures that the fuel remains intact while also allowing for the efficient transfer of heat to the coolant circulating through the reactor.In terms of functionality, the tubular fuel element serves multiple purposes. Firstly, it acts as a source of fissile material, which is necessary for sustaining the nuclear chain reaction. When neutrons collide with the nuclei of uranium atoms within the fuel, it results in fission, releasing a significant amount of energy. This energy is then captured by the reactor's coolant system, which typically consists of water or gas, and converted into steam to drive turbines and generate electricity.Moreover, the arrangement of tubular fuel elements within the reactor core is meticulously planned to optimize the neutron economy. Engineers must consider factors such as the spacing between elements, their orientation, and the overall geometry of the core to ensure that the maximum amount of fission occurs while minimizing the production of radioactive waste. This careful design is crucial, as it directly impacts the efficiency and safety of the reactor.Another important aspect of the tubular fuel element is its role in the reactor's operational lifespan. Over time, as the fuel undergoes fission, it gradually becomes less effective due to the buildup of fission products and the depletion of fissile material. Therefore, monitoring the condition of these fuel elements is essential. Engineers use various techniques, such as neutron flux measurements and thermal imaging, to assess their performance and determine when it is necessary to replace them.In conclusion, the tubular fuel element (管状燃料元件) is a fundamental component in the design and operation of nuclear reactors. Its unique cylindrical shape, material composition, and strategic arrangement contribute significantly to the efficiency and safety of nuclear energy production. As the world continues to seek sustainable energy solutions, understanding and improving the performance of tubular fuel elements will remain a key focus for researchers and engineers alike. By advancing our knowledge in this area, we can help ensure that nuclear power remains a viable and safe energy source for the future.

在核工程领域，反应堆的设计和功能对于确保安全和高效的能源生产至关重要。许多类型核反应堆中的一个关键组件是管状燃料元件（tubular fuel element）。这种特殊的燃料组件在核裂变过程中发挥着重要作用，这是在反应堆中产生热量并随后产生能量的机制。理解管状燃料元件的结构和目的对于在该领域工作的工程师和科学家来说是必不可少的。管状燃料元件通常具有圆柱形特征，这种设计使其具有较高的表面积与体积比。这种设计的优势在于它促进了有效的热传递，这是管理核反应过程中产生的强烈温度的关键方面。用于构建这些燃料元件的材料必须能够承受极端条件，包括高辐射水平和腐蚀环境。常用的燃料材料是二氧化铀，包裹在由锆合金或不锈钢制成的保护包壳中。这种组合确保燃料保持完整，同时也允许冷却剂在反应堆中有效地转移热量。在功能方面，管状燃料元件有多个用途。首先，它作为裂变材料的来源，这是维持核链反应所必需的。当中子与燃料中的铀原子核发生碰撞时，便会发生裂变，释放出大量能量。这些能量随后被反应堆的冷却系统捕获，冷却剂通常由水或气体组成，并转化为蒸汽以驱动涡轮机发电。此外，管状燃料元件在反应堆核心内的排列经过精心规划，以优化中子经济性。工程师必须考虑元素之间的间距、它们的方向以及核心的整体几何形状，以确保最大程度地发生裂变，同时最小化放射性废物的产生。这种精心设计至关重要，因为它直接影响反应堆的效率和安全性。管状燃料元件的另一个重要方面是其在反应堆操作寿命中的作用。随着时间的推移，随着燃料经历裂变，它逐渐由于裂变产物的积累和裂变材料的耗尽而变得不那么有效。因此，监测这些燃料元件的状况至关重要。工程师使用各种技术，如中子通量测量和热成像，来评估其性能并确定何时需要更换它们。总之，管状燃料元件（tubular fuel element）是核反应堆设计和运行中的基本组件。其独特的圆柱形状、材料组成和战略性排列显著地贡献了核能生产的效率和安全性。随着世界继续寻求可持续的能源解决方案，理解和改善管状燃料元件的性能将始终是研究人员和工程师的重点。通过在这一领域的知识进步，我们可以帮助确保核能在未来仍然是一个可行且安全的能源来源。