open cycle

简明释义

开路循环

英英释义

例句

1.An open cycle process can be less efficient than a closed cycle due to energy loss.

开放循环过程可能比闭合循环效率低，因为会有能量损失。

2.The engine operates on an open cycle design, which means it does not recycle exhaust gases.

该发动机采用开放循环设计，这意味着它不回收废气。

3.In thermodynamics, an open cycle refers to a system that exchanges matter with its surroundings.

在热力学中，开放循环指的是与其环境交换物质的系统。

4.The power plant uses an open cycle gas turbine for its efficiency in generating electricity.

该发电厂使用开放循环燃气轮机，以提高发电效率。

5.The concept of an open cycle is crucial in understanding environmental impact in engineering.

理解工程中的环境影响时，开放循环的概念至关重要。

作文

In the realm of thermodynamics, the concept of an open cycle is crucial for understanding how various systems operate. An open cycle refers to a process in which the working fluid is not recirculated but instead is expelled from the system after performing its work. This is in contrast to a closed cycle, where the working fluid remains within the system and is reused continuously. The significance of an open cycle can be observed in various applications, particularly in engines and power plants.One of the most common examples of an open cycle is found in gas turbine engines. In these engines, air is drawn in from the environment, compressed, mixed with fuel, and ignited. The resulting high-temperature gases expand rapidly and are expelled out of the engine, producing thrust. This process exemplifies the open cycle because once the gases have done their work, they are released into the atmosphere rather than being recycled back into the engine. This allows for a continuous supply of fresh air to maintain optimal performance but also means that the system must constantly intake new working fluid.Another pertinent example is seen in certain types of power generation, such as open cycle gas turbine (OCGT) plants. These plants operate on the principle of an open cycle, generating electricity by using natural gas as fuel. The gas is combusted, and the resultant hot gases drive a turbine connected to a generator. Once the gases have passed through the turbine, they are released into the atmosphere, illustrating the nature of an open cycle. While this method can be efficient and provide quick responses to energy demands, it also raises concerns about emissions and environmental impact.The advantages of an open cycle include simplicity and the ability to utilize ambient conditions for improved efficiency. For instance, because the system does not require extensive heat exchangers or condensers to recycle the working fluid, it can be designed with fewer components, which may lead to reduced maintenance costs. Additionally, the use of fresh working fluid can enhance performance, especially in applications where temperature and pressure variations are significant.However, the open cycle also comes with its challenges. The need for a constant supply of working fluid can lead to higher operational costs, especially if the fluid is a costly resource. Moreover, the environmental implications of releasing exhaust gases can be significant, prompting the need for regulations and technologies to mitigate pollution.In conclusion, understanding the principles behind an open cycle is essential for those studying thermodynamics and engineering. It highlights the balance between efficiency, cost, and environmental impact in designing systems that utilize this process. As technology progresses, innovations may emerge to enhance the performance of open cycles while addressing their drawbacks. Ultimately, the study of open cycles provides valuable insights into the functioning of many modern systems, paving the way for advancements in sustainable energy solutions.

在热力学领域，开放循环的概念对于理解各种系统的运作至关重要。开放循环指的是一种过程，其中工作流体不被循环使用，而是在完成其工作后被排出系统。这与闭式循环形成对比，后者工作流体保持在系统内并被持续重复使用。开放循环的重要性可以在各种应用中观察到，特别是在发动机和发电厂中。一个最常见的开放循环示例出现在燃气涡轮发动机中。在这些发动机中，空气从环境中吸入，被压缩，与燃料混合并点燃。产生的高温气体迅速膨胀并被排出发动机，产生推力。这个过程体现了开放循环的特征，因为一旦气体完成其工作，它们便被释放到大气中，而不是被回收回发动机。这使得系统能够持续吸入新鲜空气以维持最佳性能，但也意味着系统必须不断摄取新的工作流体。另一个相关的例子可以在某些类型的发电中看到，例如开放循环燃气涡轮（OCGT）电厂。这些电厂基于开放循环原理，通过使用天然气作为燃料来发电。天然气被燃烧，产生的热气体驱动连接到发电机的涡轮。一旦气体通过涡轮，它们就会被释放到大气中，展示了开放循环的性质。虽然这种方法可以高效并快速响应能源需求，但它也引发了关于排放和环境影响的担忧。开放循环的优点包括简单性和利用环境条件提高效率的能力。例如，由于系统不需要广泛的热交换器或冷凝器来回收工作流体，因此可以设计成更少的组件，这可能导致维护成本降低。此外，使用新鲜的工作流体可以增强性能，尤其是在温度和压力变化显著的应用中。然而，开放循环也有其挑战。对工作流体的持续供应需求可能导致更高的运营成本，尤其是当流体是一种昂贵资源时。此外，释放废气的环境影响可能是显著的，这促使需要法规和技术来减轻污染。总之，理解开放循环背后的原理对于学习热力学和工程的人来说至关重要。它突出了在设计利用这一过程的系统时效率、成本和环境影响之间的平衡。随着技术的发展，可能会出现创新，以提高开放循环的性能，同时解决其缺点。最终，开放循环的研究为现代系统的运作提供了宝贵的见解，为可持续能源解决方案的进步铺平了道路。