non-expansion steam engine

简明释义

非膨胀式蒸汽机

英英释义

例句

1.The invention of the non-expansion steam engine 非膨胀蒸汽机 marked a significant advancement in industrial technology.

非膨胀蒸汽机的发明标志着工业技术的重大进步。

2.Engineers studied the non-expansion steam engine 非膨胀蒸汽机 to understand its mechanical principles.

工程师们研究了非膨胀蒸汽机以理解其机械原理。

3.In many older factories, you can still find a non-expansion steam engine 非膨胀蒸汽机 powering the machinery.

在许多老工厂中，你仍然可以找到一台非膨胀蒸汽机为机器提供动力。

4.The efficiency of the non-expansion steam engine 非膨胀蒸汽机 is often compared to that of modern engines.

非膨胀蒸汽机的效率常常与现代发动机进行比较。

5.The non-expansion steam engine 非膨胀蒸汽机 was commonly used in trains during the early 19th century.

非膨胀蒸汽机在19世纪初期的火车中被广泛使用。

作文

The development of steam engines marked a significant turning point in the history of technology and industry. Among the various types of steam engines, the non-expansion steam engine stands out for its unique operational characteristics and historical significance. Unlike expansion engines that utilize the expansion of steam to perform work, the non-expansion steam engine operates under a different principle, relying primarily on the pressure of steam without allowing it to expand significantly during its cycle. This fundamental difference in operation leads to various implications in terms of efficiency, design, and application.To understand the non-expansion steam engine, it is essential to first grasp the basic principles of steam power. Steam engines convert thermal energy into mechanical energy through the use of steam. In traditional expansion engines, steam is allowed to expand in a cylinder, creating a vacuum that drives the piston. This process can lead to increased efficiency as the expanding steam does more work. However, in a non-expansion steam engine, the steam is introduced into the cylinder at high pressure, and the engine performs work almost immediately without allowing the steam to expand significantly.One of the main advantages of the non-expansion steam engine is its simplicity in design. Because it does not require complex mechanisms to manage the expansion and contraction of steam, these engines can be built with fewer moving parts. This simplicity often translates to lower maintenance costs and greater reliability. Furthermore, the non-expansion steam engine can operate efficiently at high pressures, which was particularly advantageous during the early days of steam technology when materials capable of withstanding high pressures were becoming available.However, the non-expansion steam engine also has its drawbacks. One significant limitation is its efficiency compared to expansion engines. Because it does not take full advantage of the energy produced by steam expansion, it tends to consume more fuel for the same amount of work output. This inefficiency can be a critical factor in applications where fuel costs are a major concern, such as in large-scale industrial operations.In terms of applications, the non-expansion steam engine found its niche in specific contexts where its characteristics could be beneficial. For instance, it was commonly used in early locomotives and marine engines, where the ability to generate immediate power was crucial. The design allowed for quick starts and stops, making it suitable for transportation needs. Additionally, it was employed in various industrial machines where high torque at low speeds was necessary.As technology advanced, the limitations of the non-expansion steam engine became more pronounced, leading to the widespread adoption of expansion engines. These later designs capitalized on the principles of thermodynamics to increase efficiency and reduce fuel consumption. Despite this shift, the non-expansion steam engine remains an important part of engineering history, illustrating the evolution of steam power technology.In conclusion, the non-expansion steam engine represents a fascinating chapter in the story of industrial advancement. While it may not be as efficient as its expansion counterparts, its simplicity and reliability made it a valuable tool in the early days of steam technology. Understanding the workings and implications of the non-expansion steam engine provides insight into the challenges and innovations that shaped the modern world. As we continue to explore the past, we can appreciate the contributions of these early engines to the foundation of contemporary engineering practices.

蒸汽机的发展标志着技术和工业历史上的一个重要转折点。在各种类型的蒸汽机中，非膨胀蒸汽机因其独特的操作特性和历史意义而脱颖而出。与利用蒸汽膨胀来进行工作的膨胀机不同，非膨胀蒸汽机主要依靠蒸汽的压力进行操作，而在其循环过程中不允许蒸汽显著膨胀。这种操作的根本差异在效率、设计和应用方面产生了各种影响。要理解非膨胀蒸汽机，首先必须掌握蒸汽动力的基本原理。蒸汽机通过使用蒸汽将热能转化为机械能。在传统的膨胀机中，蒸汽被允许在气缸中膨胀，形成真空，从而驱动活塞。这个过程可以提高效率，因为膨胀的蒸汽能够做更多的功。然而，在非膨胀蒸汽机中，蒸汽以高压引入气缸，发动机几乎立即进行工作，而不允许蒸汽显著膨胀。非膨胀蒸汽机的主要优点之一是其设计的简单性。因为它不需要复杂的机制来管理蒸汽的膨胀和收缩，这些发动机可以用更少的运动部件制造。这种简单性通常会转化为较低的维护成本和更高的可靠性。此外，非膨胀蒸汽机可以在高压下高效运行，这在蒸汽技术早期阶段尤为有利，因为此时能够承受高压的材料逐渐可用。然而，非膨胀蒸汽机也有其缺点。一个显著的限制是与膨胀机相比，其效率较低。由于它没有充分利用蒸汽膨胀所产生的能量，因此在相同的工作输出下往往消耗更多的燃料。这种低效率在燃料成本是主要考虑因素的应用中可能成为关键因素，例如在大型工业操作中。在应用方面，非膨胀蒸汽机在特定情况下找到了自己的立足点，其中其特性可能是有利的。例如，它通常用于早期的机车和海洋发动机中，在这些情况下，产生即时动力是至关重要的。这种设计允许快速启动和停止，使其适合运输需求。此外，它还被用于各种工业机器中，那里需要在低速下提供高扭矩。随着技术的发展，非膨胀蒸汽机的局限性变得愈加明显，导致膨胀机的广泛采用。这些后来的设计利用热力学原理来提高效率并减少燃料消耗。尽管这种转变发生了，非膨胀蒸汽机仍然是工程历史中一个重要的组成部分，展示了蒸汽动力技术的演变。总之，非膨胀蒸汽机代表了工业进步故事中的一个迷人章节。虽然它可能没有其膨胀对手那么高效，但其简单性和可靠性使其成为蒸汽技术早期的重要工具。理解非膨胀蒸汽机的工作原理及其影响，有助于我们深入了解塑造现代世界的挑战与创新。在继续探索过去的同时，我们可以欣赏这些早期发动机对当代工程实践基础的贡献。