pressurized-water reactor

简明释义

压水堆

英英释义

例句

1.Many nuclear power plants utilize a pressurized-water reactor 压水反应堆 for electricity generation.

许多核电站利用压水反应堆 压水反应堆进行发电。

2.The pressurized-water reactor 压水反应堆 is one of the most common types of nuclear reactors in use today.

目前使用最广泛的核反应堆类型之一是压水反应堆 压水反应堆。

3.In a pressurized-water reactor 压水反应堆, water is kept under high pressure to raise its boiling point.

在压水反应堆 压水反应堆中，水在高压下保持，以提高其沸点。

4.Operators must monitor the temperature and pressure levels in a pressurized-water reactor 压水反应堆 closely.

操作员必须密切监测压水反应堆 压水反应堆中的温度和压力水平。

5.The safety features of the pressurized-water reactor 压水反应堆 are designed to prevent overheating.

该压水反应堆 压水反应堆的安全特性旨在防止过热。

作文

The world today is increasingly reliant on various forms of energy to power our homes, industries, and transportation systems. Among the many sources of energy, nuclear power stands out as one of the most efficient and environmentally friendly options available. At the heart of nuclear power generation lies a critical component known as the pressurized-water reactor, or PWR. Understanding how this technology works is essential for appreciating its role in modern energy production.A pressurized-water reactor is a type of nuclear reactor that uses water as both a coolant and a moderator. In a typical PWR, water is kept under high pressure to prevent it from boiling, even at temperatures exceeding 300 degrees Celsius. This high-pressure environment allows the reactor to operate efficiently and safely. The primary purpose of the pressurized-water reactor is to generate heat through nuclear fission, which is then used to produce steam that drives turbines for electricity generation.The process begins when uranium fuel rods are placed in the reactor core. When the uranium atoms undergo fission, they release a significant amount of heat. This heat is absorbed by the water circulating through the reactor core. Because the water is pressurized, it does not turn into steam immediately. Instead, it flows through a heat exchanger, where it transfers its heat to a secondary loop of water that is allowed to boil and produce steam.One of the key advantages of the pressurized-water reactor design is its inherent safety features. The high pressure within the system prevents the water from boiling and forming steam bubbles, which could disrupt the cooling process. Additionally, the reactor is equipped with multiple safety systems designed to shut down the reactor in case of an emergency. These systems ensure that the reactor core remains cool and stable, even in the event of a malfunction.Furthermore, the pressurized-water reactor has been widely adopted around the world due to its reliability and efficiency. It accounts for a significant portion of the nuclear power generated globally. Countries such as the United States, France, and Japan have invested heavily in PWR technology, making it a cornerstone of their energy strategies.However, the use of pressurized-water reactors is not without challenges. The management of nuclear waste, the potential for accidents, and public perception of nuclear power remain significant concerns. Incidents like the Fukushima disaster have raised questions about the safety of nuclear energy, prompting a reevaluation of existing technologies and practices.In conclusion, the pressurized-water reactor plays a vital role in the global energy landscape. Its ability to generate large amounts of electricity with minimal greenhouse gas emissions makes it a valuable asset in the fight against climate change. As technology continues to evolve, ongoing research and development will be crucial in enhancing the safety and efficiency of PWRs, ensuring that they remain a key player in the future of energy production. Understanding the intricacies of the pressurized-water reactor is essential for anyone interested in the field of energy and environmental science, as it represents both the potential and the challenges of nuclear power.

当今世界越来越依赖多种能源来为我们的家庭、工业和交通系统提供动力。在众多能源来源中，核能作为一种高效且环保的选择脱颖而出。在核电发电的核心，存在一个关键组件，称为压水反应堆（PWR）。理解这一技术如何运作对于欣赏其在现代能源生产中的作用至关重要。压水反应堆是一种使用水作为冷却剂和慢化剂的核反应堆类型。在典型的PWR中，水在高压下保持，以防止其在超过300摄氏度的温度下沸腾。这种高压环境使得反应堆能够高效且安全地运行。压水反应堆的主要目的是通过核裂变产生热量，然后利用这些热量产生蒸汽，驱动涡轮机进行发电。这一过程始于将铀燃料棒放置在反应堆核心。当铀原子发生裂变时，它们释放出大量热量。这些热量被流经反应堆核心的水吸收。由于水处于加压状态，它不会立即变成蒸汽，而是流经热交换器，在那里将热量传递给允许沸腾并产生蒸汽的二次水循环。压水反应堆设计的一个主要优点是其固有的安全特性。系统内的高压防止水沸腾并形成蒸汽气泡，这可能会干扰冷却过程。此外，反应堆配备了多重安全系统，旨在在紧急情况下关闭反应堆。这些系统确保反应堆核心在故障事件中保持冷却和稳定。此外，压水反应堆因其可靠性和效率而在全球范围内被广泛采用。它占全球核能发电的相当一部分。美国、法国和日本等国在PWR技术上投入大量资金，使其成为其能源战略的基石。然而，使用压水反应堆并非没有挑战。核废料管理、事故潜在风险以及公众对核能的看法仍然是重大问题。福岛灾难等事件引发了对核能安全性的质疑，促使人们重新评估现有技术和实践。总之，压水反应堆在全球能源格局中发挥着至关重要的作用。其以最小的温室气体排放产生大量电力的能力，使其成为应对气候变化斗争中的宝贵资产。随着技术的不断发展，持续的研究和开发对于提高PWR的安全性和效率至关重要，确保它们在未来能源生产中继续发挥关键作用。理解压水反应堆的复杂性对于任何对能源和环境科学领域感兴趣的人来说都是必不可少的，因为它代表了核能的潜力和挑战。