reversible cycle

简明释义

可逆循环

英英释义

例句

1.In the Carnot theorem, the reversible cycle serves as a standard for comparing the efficiency of heat engines.

在卡诺定理中，可逆循环作为比较热机效率的标准。

2.The efficiency of a reversible cycle is always higher than that of an irreversible one.

一个可逆循环的效率总是高于不可逆循环的效率。

3.A refrigerator works on the principle of a reversible cycle, transferring heat from a cooler to a warmer area.

冰箱的工作原理基于可逆循环，将热量从较冷的地方转移到较热的地方。

4.Engine designers aim to create machines that operate close to a reversible cycle for maximum efficiency.

发动机设计师的目标是制造接近于可逆循环的机器，以实现最大效率。

5.In thermodynamics, a reversible cycle refers to a process that can be reversed without any net change to the system or surroundings.

在热力学中，可逆循环指的是一个可以被反转而对系统或环境没有任何净变化的过程。

作文

In the realm of thermodynamics, the concept of a reversible cycle is fundamental to understanding how energy systems operate. A reversible cycle refers to a thermodynamic process that can be reversed without leaving any changes in both the system and its surroundings. This means that the process can return to its initial state without any net change in energy or entropy. The idea of reversibility is crucial because it serves as an ideal benchmark against which real processes can be compared. To illustrate the significance of a reversible cycle, consider the Carnot cycle, which is a theoretical model that demonstrates the maximum efficiency possible for heat engines. The Carnot cycle consists of two isothermal processes and two adiabatic processes, allowing it to achieve the highest efficiency between two heat reservoirs. This cycle exemplifies the principles of a reversible cycle because it can be reversed, transforming work into heat without any loss of energy. In contrast, real-world engines are subject to irreversibilities due to friction, turbulence, and other dissipative effects, which lower their efficiency. Understanding reversible cycles also has practical implications in various engineering fields. For instance, in refrigeration and air conditioning systems, engineers strive to design cycles that approach the ideal reversible cycle to maximize cooling efficiency while minimizing energy consumption. By analyzing these cycles, engineers can identify ways to reduce irreversibilities and improve system performance. Moreover, the concept of a reversible cycle extends beyond thermodynamics. In other areas of science, such as chemistry and biology, reactions can also exhibit reversible characteristics. For example, many chemical reactions reach a state of equilibrium where the forward and reverse reactions occur at the same rate. Understanding these reversible reactions is essential for predicting the behavior of chemical systems and designing efficient processes in industrial applications. In conclusion, the idea of a reversible cycle is a cornerstone of thermodynamic theory, providing valuable insights into the efficiency of energy systems. It serves as a critical reference point for evaluating real-world processes and highlights the importance of minimizing irreversibilities in engineering designs. By striving to approach the ideal reversible cycle, scientists and engineers can enhance the efficiency of various systems, ultimately leading to more sustainable practices and innovations in technology.

在热力学领域，可逆循环的概念对于理解能源系统的运作至关重要。可逆循环是指一种热力学过程，该过程可以在不对系统及其周围环境造成任何变化的情况下被逆转。这意味着该过程可以在没有能量或熵的净变化的情况下返回到其初始状态。可逆性的理念至关重要，因为它作为一个理想基准，用于比较真实过程。为了说明可逆循环的重要性，可以考虑卡诺循环，它是一个理论模型，演示了热机可能达到的最高效率。卡诺循环由两个等温过程和两个绝热过程组成，使其能够在两个热储存之间实现最高效率。这个循环体现了可逆循环的原则，因为它可以被逆转，将功转化为热而不损失任何能量。相反，现实世界的发动机由于摩擦、湍流和其他耗散效应而受到不可逆性的影响，从而降低了它们的效率。理解可逆循环在各个工程领域也具有实际意义。例如，在制冷和空调系统中，工程师努力设计接近理想可逆循环的循环，以最大化制冷效率，同时最小化能量消耗。通过分析这些循环，工程师可以识别减少不可逆性和改善系统性能的方法。此外，可逆循环的概念超越了热力学。在化学和生物等其他科学领域，反应也可以表现出可逆特性。例如，许多化学反应达到一种平衡状态，在这种状态下，正向和反向反应以相同的速率进行。理解这些可逆反应对于预测化学系统的行为以及在工业应用中设计高效过程至关重要。总之，可逆循环的理念是热力学理论的基石，为能源系统的效率提供了宝贵的见解。它作为评估真实过程的关键参考点，突显了在工程设计中最小化不可逆性的重要性。通过努力接近理想的可逆循环，科学家和工程师可以提高各种系统的效率，最终导致更可持续的实践和技术创新。