open cycle

简明释义

开式循环

英英释义

例句

1.In thermodynamics, an open cycle system exchanges energy and matter with its surroundings.

在热力学中，开放循环系统与其环境交换能量和物质。

2.The open cycle configuration allows for greater efficiency in certain types of power plants.

开放循环配置在某些类型的发电厂中允许更高的效率。

3.The open cycle process is commonly used in gas turbines for aircraft engines.

开放循环过程通常用于飞机发动机中的燃气涡轮。

4.The engine operates on an open cycle, meaning it takes in air and expels exhaust without any intermediate processes.

该发动机在开放循环中运行，这意味着它吸入空气并排出废气，而没有任何中间过程。

5.Our research focuses on the impact of open cycle systems on environmental sustainability.

我们的研究集中在开放循环系统对环境可持续性的影响上。

作文

In the world of thermodynamics and engineering, the concept of an open cycle is fundamental to understanding how various systems operate. An open cycle refers to a process in which the working fluid does not circulate back to the system after completing its cycle. This is in contrast to a closed cycle, where the working fluid is reused continuously. The open cycle system is often employed in applications such as jet engines and gas turbines, where air is taken in from the environment, used for combustion, and then expelled as exhaust. The significance of an open cycle lies in its efficiency and simplicity. For instance, in a typical jet engine, air enters the engine, mixes with fuel, and undergoes combustion. The high-temperature gases produced from this reaction expand rapidly and exit through the turbine, producing thrust. Because the air is not recirculated within the engine, it allows for a straightforward design that can be optimized for high-speed performance. However, this also means that the system must constantly intake fresh air, which can lead to increased fuel consumption compared to closed systems.One of the primary advantages of using an open cycle is that it can operate at higher temperatures and pressures than many closed systems. This is particularly beneficial in aerospace applications, where maximizing thrust-to-weight ratio is crucial. The ability to expel exhaust gases quickly allows for more efficient propulsion and better acceleration. Additionally, open cycles can be designed to handle varying environmental conditions without significant alterations to their fundamental operation.However, there are also disadvantages associated with open cycles. Since the working fluid is not reused, there is a potential for energy losses. The exhaust gases released into the atmosphere can also have environmental impacts, contributing to pollution and greenhouse gas emissions. Engineers and designers must consider these factors when developing systems that utilize open cycles, balancing efficiency with environmental responsibility.In conclusion, the concept of an open cycle is essential in many engineering fields. It allows for high efficiency and performance in applications like jet engines, but it also comes with challenges related to energy loss and environmental impact. As technology advances, there may be new innovations that enhance the efficiency of open cycles or mitigate their negative effects. Understanding this concept is vital for anyone interested in engineering and thermodynamics, as it provides insight into the complexities of designing effective and responsible systems. The study of open cycles not only contributes to our knowledge of mechanical systems but also emphasizes the importance of sustainable practices in engineering.

在热力学和工程学的世界中，“open cycle”这一概念对于理解各种系统的运行至关重要。“open cycle”指的是一种过程，其中工作流体在完成其循环后不会返回到系统中。这与闭路循环相反，闭路循环中的工作流体是不断重复使用的。“open cycle”系统通常用于喷气发动机和燃气涡轮等应用中，空气从环境中吸入，与燃料混合，经过燃烧后作为废气排出。“open cycle”的意义在于其效率和简单性。例如，在典型的喷气发动机中，空气进入发动机，与燃料混合并进行燃烧。由此反应产生的高温气体迅速膨胀并通过涡轮排出，产生推力。由于空气不在发动机内循环，这使得设计变得简单，可以优化以实现高速性能。然而，这也意味着系统必须不断吸入新鲜空气，这可能导致与闭路系统相比燃料消耗增加。使用“open cycle”的主要优点之一是它可以在比许多闭路系统更高的温度和压力下运行。这在航空航天应用中尤其有利，因为最大化推重比至关重要。快速排放废气的能力使得推进更加高效，加速更好。此外，“open cycles”可以设计成适应不同的环境条件，而无需对其基本操作进行重大修改。然而，“open cycles”也存在一些缺点。由于工作流体未被重复使用，可能会导致能量损失。排放到大气中的废气也可能对环境产生影响，导致污染和温室气体排放。工程师和设计师在开发利用“open cycles”的系统时，必须考虑这些因素，在效率与环境责任之间取得平衡。总之，“open cycle”的概念在许多工程领域至关重要。它允许在喷气发动机等应用中实现高效率和高性能，但也带来了与能量损失和环境影响相关的挑战。随着技术的进步，可能会出现新的创新，提高“open cycles”的效率或减轻其负面影响。理解这一概念对于任何对工程和热力学感兴趣的人来说都是至关重要的，因为它提供了对设计有效且负责任的系统复杂性的深入了解。对“open cycles”的研究不仅有助于我们了解机械系统，还强调了工程中可持续实践的重要性。