fuel assembly

简明释义

燃料堆

英英释义

例句

1.Each fuel assembly contains numerous fuel rods that provide the necessary energy.

每个燃料组件包含多个燃料棒，提供所需的能量。

2.The reactor's efficiency depends heavily on the design of the fuel assembly.

反应堆的效率在很大程度上取决于燃料组件的设计。

3.The safety protocols for handling fuel assemblies are very strict.

处理燃料组件的安全协议非常严格。

4.The fuel assembly must be replaced every few years to ensure optimal performance.

为了确保最佳性能，燃料组件必须每隔几年更换一次。

5.During maintenance, technicians must carefully inspect each fuel assembly for damage.

在维护期间，技术人员必须仔细检查每个燃料组件是否有损坏。

作文

In the realm of nuclear engineering, the term fuel assembly refers to a crucial component of a nuclear reactor. A fuel assembly is essentially a structured arrangement of nuclear fuel, typically in the form of rods, that are designed to facilitate a controlled nuclear reaction. These assemblies are made up of various materials, including uranium or plutonium, and are encased in protective cladding to prevent the release of radioactive materials into the reactor environment. The design and configuration of a fuel assembly are vital for the efficient operation of a nuclear reactor. Each assembly consists of numerous fuel rods bundled together in a specific geometric pattern. This arrangement allows for optimal neutron flux, which is necessary for sustaining the chain reaction that generates heat. The heat produced in turn is used to produce steam, which drives turbines to generate electricity. Understanding the importance of fuel assemblies is essential for anyone involved in nuclear power generation. The performance of a reactor largely depends on the quality and design of its fuel assemblies. Engineers must carefully analyze factors such as the enrichment of the fuel, the material properties of the cladding, and the thermal-hydraulic conditions within the reactor core to ensure safety and efficiency. Moreover, the management of spent fuel assemblies is another critical aspect of nuclear energy. After a fuel assembly has been used in a reactor for a certain period, it becomes 'spent' and is no longer effective for sustaining a nuclear reaction. These spent assemblies are highly radioactive and require careful handling and storage. Typically, they are placed in spent fuel pools for cooling and shielding before being transferred to dry cask storage or reprocessing facilities. The evolution of fuel assembly technology has also played a significant role in advancing nuclear power. Innovations such as advanced fuel designs and new materials have improved the efficiency and safety of reactors. For instance, some modern reactors utilize mixed oxide (MOX) fuel, which incorporates plutonium recovered from spent fuel, thereby reducing nuclear waste and enhancing sustainability. In conclusion, the concept of fuel assembly is fundamental to the field of nuclear engineering. It encompasses not only the physical structure that holds nuclear fuel but also the intricate systems and processes that govern their operation within a reactor. As the world continues to seek sustainable energy solutions, the development and management of fuel assemblies will remain a pivotal area of research and innovation in the nuclear industry.

在核工程领域，术语燃料组件指的是核反应堆的一个关键组成部分。燃料组件本质上是核燃料的结构化排列，通常以棒状形式存在，旨在促进受控的核反应。这些组件由各种材料构成，包括铀或钚，并包裹在保护性包壳中，以防止放射性物质释放到反应堆环境中。燃料组件的设计和配置对核反应堆的高效运行至关重要。每个组件由多个燃料棒以特定几何图案捆绑在一起。这种排列方式允许最佳的中子通量，这是维持产生热量的链式反应所必需的。产生的热量反过来用于产生蒸汽，驱动涡轮发电。理解燃料组件的重要性对于任何参与核能发电的人来说都是至关重要的。反应堆的性能在很大程度上取决于其燃料组件的质量和设计。工程师必须仔细分析燃料的富集程度、包壳的材料特性以及反应堆核心内的热水力条件，以确保安全和效率。此外，使用后的燃料组件管理也是核能的另一个关键方面。在反应堆中使用了一段时间后，燃料组件变得“使用完毕”，不再有效地维持核反应。这些使用后的组件具有高度放射性，需要小心处理和储存。通常，它们会被放置在使用后燃料池中进行冷却和屏蔽，然后转移到干式储存筒或再处理设施。燃料组件技术的演变也在推动核能的进步中发挥了重要作用。先进的燃料设计和新材料的创新提高了反应堆的效率和安全性。例如，一些现代反应堆利用混合氧化物（MOX）燃料，其中包含从使用后燃料中回收的钚，从而减少核废料并增强可持续性。总之，燃料组件的概念对于核工程领域至关重要。它不仅涵盖了承载核燃料的物理结构，还包括支配其在反应堆内操作的复杂系统和过程。随着世界继续寻求可持续的能源解决方案，燃料组件的开发和管理将仍然是核工业研究和创新的关键领域。