open cycle

简明释义

开式循环

英英释义

例句

1.An open cycle cooling system can be more cost-effective than a closed system.

开放循环冷却系统可能比封闭系统更具成本效益。

2.The open cycle process allows for continuous operation in certain manufacturing systems.

开放循环过程允许某些制造系统持续运行。

3.Many gas turbines use an open cycle for efficiency in power generation.

许多燃气涡轮机在发电中使用开放循环以提高效率。

4.In thermodynamics, an open cycle refers to a system where the working fluid is not reused.

在热力学中，开放循环指的是工作流体不被重复使用的系统。

5.The engine operates on an open cycle, which means it draws in air and expels exhaust without a closed loop.

这个引擎在开放循环中运行，这意味着它吸入空气并排出废气，而没有闭合循环。

作文

In the realm of thermodynamics and engineering, the term open cycle refers to a process where the working fluid is not reused or recycled within the system. This concept is particularly significant in various applications, such as power generation and internal combustion engines. Understanding the implications and characteristics of an open cycle system can provide insights into efficiency, environmental impact, and operational costs.An open cycle system operates by taking in a fresh supply of working fluid, using it to perform work, and then expelling it after the process is complete. For instance, in a gas turbine, air is drawn from the atmosphere, compressed, mixed with fuel, and ignited to produce high-temperature exhaust gases that drive the turbine. Once the energy has been extracted, the exhaust gases are released into the environment. This contrasts sharply with a closed cycle, where the working fluid is reused within the system, often resulting in higher efficiency and lower emissions.One of the primary advantages of an open cycle system is its simplicity. The design is generally less complex compared to closed systems, making it easier to construct and maintain. This simplicity can lead to lower initial investment costs and faster installation times. Additionally, because the working fluid does not need to be contained and recirculated, open cycle systems can often operate at higher temperatures and pressures, which can enhance performance in specific applications.However, the open cycle approach also has its drawbacks. The continuous intake and expulsion of working fluid can lead to inefficiencies, particularly in terms of energy loss and resource consumption. For example, in a power plant utilizing an open cycle, the need for a constant supply of fresh air or water can strain local resources and contribute to environmental degradation. Furthermore, the emissions produced by these systems can have significant ecological impacts, especially if not properly managed.Another critical aspect to consider is the operational cost associated with an open cycle system. While the initial setup may be less expensive, the ongoing costs related to fuel consumption and environmental compliance can accumulate over time. In contrast, closed cycle systems may require higher upfront investments but can yield long-term savings through improved efficiency and reduced emissions.In conclusion, the concept of open cycle plays a vital role in various engineering fields, particularly in power generation and mechanical systems. While it offers simplicity and ease of use, it is essential to weigh these benefits against the potential environmental and operational costs. As technology advances and the demand for sustainable practices increases, the debate between open cycle and closed cycle systems will continue to evolve. Ultimately, understanding the intricacies of open cycle processes will be crucial for engineers and environmentalists alike as they strive to balance efficiency, cost, and ecological responsibility.

在热力学和工程领域，术语开放循环指的是一种工作流体不在系统内重复使用或回收的过程。这个概念在各种应用中尤为重要，如发电和内燃机。理解开放循环系统的影响和特征可以提供对效率、环境影响和运营成本的洞察。开放循环系统通过吸入新鲜的工作流体，利用它来执行工作，然后在过程完成后将其排出。例如，在燃气涡轮机中，空气从大气中被抽取，压缩，与燃料混合，并点燃以产生高温废气，这些废气驱动涡轮。一旦提取了能量，废气就会释放到环境中。这与闭合循环形成鲜明对比，在闭合循环中，工作流体在系统内被重复使用，通常会导致更高的效率和更低的排放。开放循环系统的主要优点之一是其简单性。与闭合系统相比，设计通常较为简单，使得构建和维护更加容易。这种简单性可以导致较低的初始投资成本和更快的安装时间。此外，由于工作流体不需要被封闭和循环，开放循环系统通常可以在更高的温度和压力下运行，这可以在特定应用中提高性能。然而，开放循环方法也有其缺点。工作流体的持续输入和排出可能导致低效率，特别是在能量损失和资源消耗方面。例如，在利用开放循环的发电厂中，持续供应新鲜空气或水的需求可能会给当地资源造成压力，并导致环境退化。此外，这些系统产生的排放可能会对生态产生重大影响，尤其是在未得到妥善管理的情况下。另一个需要考虑的重要方面是与开放循环系统相关的运营成本。虽然初始设置可能较便宜，但与燃料消耗和环境合规相关的持续成本可能会随着时间的推移而累积。相比之下，闭合循环系统可能需要更高的前期投资，但通过提高效率和减少排放，可以实现长期节省。总之，开放循环的概念在各个工程领域中发挥着至关重要的作用，特别是在发电和机械系统中。虽然它提供了简单性和易用性，但重要的是要权衡这些好处与潜在的环境和运营成本。随着技术进步和对可持续实践的需求增加，开放循环和闭合循环系统之间的辩论将继续发展。最终，理解开放循环过程的复杂性对于工程师和环保主义者来说都是至关重要的，因为他们努力在效率、成本和生态责任之间取得平衡。