light water reactor

简明释义

轻水堆

英英释义

例句

1.A light water reactor (轻水反应堆) uses ordinary water as both a coolant and a neutron moderator.

<一个>轻水反应堆使用普通水作为冷却剂和中子减速剂。

2.The majority of nuclear power plants worldwide use a light water reactor (轻水反应堆) for electricity generation.

全球大多数核电站使用<一个>轻水反应堆来发电。

3.Safety features in a light water reactor (轻水反应堆) are designed to prevent overheating.

在<一个>轻水反应堆中，安全特性旨在防止过热。

4.Research into advanced light water reactors (轻水反应堆) is ongoing to improve efficiency.

对先进<一个>轻水反应堆的研究正在进行，以提高效率。

5.The first commercial light water reactor (轻水反应堆) began operation in the 1950s.

第一座商业<一个>轻水反应堆于20世纪50年代开始运行。

作文

The world of nuclear energy is vast and complex, with various technologies developed over the decades to harness the power of the atom. One of the most common types of nuclear reactors is the light water reactor, which uses ordinary water as both a coolant and a neutron moderator. Understanding how a light water reactor operates is essential for grasping the principles of modern nuclear power generation. A light water reactor can be categorized into two main types: pressurized water reactors (PWR) and boiling water reactors (BWR). In a PWR, water is kept under high pressure to prevent it from boiling, even at temperatures around 320 degrees Celsius. This pressurized water circulates through the reactor core, where it absorbs heat generated by nuclear fission. After passing through the core, this heated water transfers its energy to a secondary loop, turning water into steam that drives turbines to produce electricity. The efficiency of PWRs has made them one of the most widely used types of reactors worldwide. On the other hand, in a BWR, water is allowed to boil within the reactor core itself. As the water heats up, it turns into steam, which directly drives the turbines. The simplicity of the BWR design contributes to its operational efficiency, making it a popular choice in many countries. Both types of light water reactors have their advantages and disadvantages, but they share a common reliance on the properties of ordinary water to facilitate the nuclear reaction. The safety of light water reactors has been a topic of discussion, especially in the wake of nuclear accidents like Chernobyl and Fukushima. However, advancements in technology and engineering have led to significant improvements in reactor safety systems. Modern light water reactors are designed with multiple safety features, including containment structures, redundant cooling systems, and advanced monitoring technologies to minimize the risk of accidents. Additionally, regulatory bodies continuously assess and update safety protocols to ensure that these reactors operate within safe limits. Environmental concerns also play a crucial role in discussions about light water reactors. While nuclear power generates minimal greenhouse gas emissions compared to fossil fuels, there are still challenges associated with nuclear waste management and the potential for contamination. The debate surrounding nuclear energy often centers on whether the benefits of reduced carbon emissions outweigh the risks of radioactive waste. In conclusion, light water reactors represent a significant advancement in nuclear technology, providing a reliable source of energy for millions of people worldwide. Their ability to generate large amounts of electricity with minimal environmental impact makes them an attractive option in the fight against climate change. However, ongoing discussions about safety, waste management, and public perception will continue to shape the future of light water reactors and nuclear energy as a whole. As we move forward, it is essential to weigh the benefits and risks of this powerful technology carefully, ensuring that we make informed decisions for a sustainable energy future.

核能的世界广阔而复杂，几十年来开发了各种技术来利用原子的力量。最常见的核反应堆类型之一是轻水反应堆，它使用普通水作为冷却剂和中子减速剂。理解轻水反应堆的工作原理对于掌握现代核电发电的原理至关重要。 轻水反应堆可以分为两种主要类型：压水反应堆（PWR）和沸水反应堆（BWR）。在PWR中，水在高压下保持不沸腾，即使在约320摄氏度的温度下也是如此。这种加压水在反应堆核心中循环，吸收核裂变产生的热量。在经过反应堆核心后，这种加热的水将其能量转移到第二个循环中，将水转化为蒸汽，驱动涡轮发电。PWR的高效率使其成为全球最广泛使用的反应堆类型之一。 另一方面，在BWR中，水允许在反应堆核心内沸腾。当水加热时，它转化为蒸汽，直接驱动涡轮。BWR设计的简单性有助于其操作效率，使其在许多国家中成为受欢迎的选择。这两种类型的轻水反应堆各有优缺点，但它们共同依赖普通水的特性来促进核反应。 关于轻水反应堆的安全性一直是讨论的话题，尤其是在切尔诺贝利和福岛等核事故之后。然而，技术和工程的进步使反应堆安全系统得到了显著改善。现代的轻水反应堆设计了多重安全特性，包括屏蔽结构、冗余冷却系统和先进的监测技术，以最大限度地降低事故风险。此外，监管机构不断评估和更新安全协议，以确保这些反应堆在安全限制内运行。 环境问题在关于轻水反应堆的讨论中也起着关键作用。虽然与化石燃料相比，核能产生的温室气体排放最小，但仍然存在与核废料管理和潜在污染相关的挑战。围绕核能的辩论通常集中在减少碳排放的好处是否超过放射性废物的风险。 总之，轻水反应堆代表了核技术的重要进步，为全球数百万人提供可靠的能源来源。它们以最小的环境影响产生大量电力，使其在应对气候变化的斗争中成为一种有吸引力的选择。然而，关于安全性、废物管理和公众认知的持续讨论将继续塑造轻水反应堆及整个核能的未来。随着我们向前推进，仔细权衡这种强大技术的利弊至关重要，确保我们为可持续能源的未来做出明智的决策。