pressurized water reactor

简明释义

压力水冷反应堆

英英释义

例句

1.The design of the pressurized water reactor 压水反应堆 is widely used in nuclear power plants around the world.

这种压水反应堆的设计在全球范围内的核电站中被广泛使用。

2.Engineers are currently working on improving the safety features of the pressurized water reactor 压水反应堆 to prevent accidents.

工程师们目前正在努力改善压水反应堆的安全特性，以防止事故发生。

3.The pressurized water reactor 压水反应堆 operates by keeping water under high pressure to prevent it from boiling.

压水反应堆通过保持水在高压状态下运行，以防止其沸腾。

4.The efficiency of a pressurized water reactor 压水反应堆 can be significantly affected by its cooling system.

压水反应堆的效率可能会受到其冷却系统的显著影响。

5.Many countries rely on the pressurized water reactor 压水反应堆 technology for their nuclear energy production.

许多国家依赖于压水反应堆技术来进行核能生产。

作文

The world has been increasingly reliant on nuclear power as a significant source of energy. Among the various types of nuclear reactors, the pressurized water reactor (PWR) stands out as one of the most widely used designs globally. Understanding how a pressurized water reactor works is essential for appreciating its role in modern energy production and the safety measures that accompany it.A pressurized water reactor operates by using water as both a coolant and a moderator. In this system, water is kept under high pressure, preventing it from boiling even when it reaches high temperatures. This is crucial because it allows the reactor to operate at higher temperatures and efficiencies without the formation of steam within the reactor core itself. The primary loop of a PWR circulates this pressurized water through the reactor core, where it absorbs heat generated by nuclear fission.Once the water has absorbed sufficient heat, it is pumped through a heat exchanger, known as a steam generator, where it transfers its heat to a secondary loop containing water at a lower pressure. This water then turns into steam, which drives turbines to generate electricity. After passing through the turbines, the steam is cooled back into water and returned to the steam generator, completing the cycle.The design of a pressurized water reactor incorporates several safety features to prevent accidents and ensure the safe operation of the reactor. For instance, the containment structure surrounding the reactor core is designed to withstand extreme conditions, including potential impacts from external sources. Additionally, multiple redundant cooling systems are in place to manage the temperature of the reactor even in the event of a malfunction.However, the use of pressurized water reactors is not without challenges. One of the primary concerns is the management of nuclear waste generated from the fission process. Spent nuclear fuel remains radioactive and hazardous for thousands of years, necessitating secure storage and disposal solutions. Furthermore, the risk of accidents, while statistically low, remains a concern due to the potential consequences of a meltdown or radiation leak.Despite these challenges, the pressurized water reactor remains a cornerstone of nuclear power generation. Its ability to produce large amounts of electricity with relatively low greenhouse gas emissions makes it an attractive option in the context of global efforts to combat climate change. As countries strive for cleaner energy sources, the role of PWRs could become even more prominent.In conclusion, the pressurized water reactor is a vital technology in the nuclear energy sector, providing a significant portion of the world's electricity. Understanding its operation, safety features, and the challenges it faces is crucial for anyone interested in energy production and environmental sustainability. As we look towards the future, the continued development and improvement of pressurized water reactors will be essential in meeting our energy needs while addressing the pressing issue of climate change.

随着世界对核能的依赖日益增加，核反应堆的各种类型中，压水反应堆（PWR）因其广泛应用而脱颖而出。了解压水反应堆的工作原理对于理解其在现代能源生产中的作用及其伴随的安全措施至关重要。压水反应堆通过使用水作为冷却剂和调节剂来运作。在该系统中，水在高压下保持，防止其在高温下沸腾。这一点至关重要，因为它允许反应堆在更高的温度和效率下运行，而不在反应堆核心内部形成蒸汽。PWR的主要循环将这种加压水循环通过反应堆核心，在那里它吸收核裂变产生的热量。一旦水吸收了足够的热量，就会被泵送到一个称为蒸汽发生器的热交换器中，在那里它将热量转移到一个压力较低的二次循环中。这些水随后转变为蒸汽，推动涡轮发电。经过涡轮后，蒸汽被冷却回水并返回蒸汽发生器，完成循环。压水反应堆的设计包含多个安全特性，以防止事故并确保反应堆的安全运行。例如，围绕反应堆核心的封闭结构旨在承受极端条件，包括可能来自外部的冲击。此外，还设有多个冗余冷却系统，即使在故障情况下也能管理反应堆的温度。然而，使用压水反应堆并非没有挑战。主要问题之一是管理核裂变过程中产生的核废料。使用过的核燃料在数千年内仍然具有放射性和危险性，因此需要安全的储存和处置解决方案。此外，尽管统计上风险较低，但由于熔毁或辐射泄漏的潜在后果，事故风险仍然令人担忧。尽管面临这些挑战，压水反应堆仍然是核电发电的基石。它能够以相对较低的温室气体排放量产生大量电力，使其在全球应对气候变化的努力中成为一个有吸引力的选择。随着各国努力寻找更清洁的能源来源，PWR的角色可能会变得更加突出。总之，压水反应堆是核能领域的一项重要技术，为世界提供了相当一部分电力。了解其操作、安全特性以及面临的挑战，对于任何对能源生产和环境可持续性感兴趣的人来说都至关重要。展望未来，继续开发和改进压水反应堆将对满足我们的能源需求，同时应对气候变化这一紧迫问题至关重要。