isentropic efficiency

简明释义

等熵效率

英英释义

例句

1.A higher isentropic efficiency 绝热效率 indicates that the compressor is performing closer to the ideal process.

更高的isentropic efficiency 绝热效率 表明压缩机的性能更接近理想过程。

2.The turbine's performance can be evaluated by calculating its isentropic efficiency 绝热效率 under different operating conditions.

通过计算涡轮在不同工作条件下的isentropic efficiency 绝热效率，可以评估其性能。

3.In refrigeration systems, the isentropic efficiency 绝热效率 of the expansion valve plays a crucial role in system performance.

在制冷系统中，膨胀阀的isentropic efficiency 绝热效率 对系统性能起着关键作用。

4.Engine designers strive to maximize the isentropic efficiency 绝热效率 of the cycle to improve overall efficiency.

发动机设计师努力最大化循环的isentropic efficiency 绝热效率 以提高整体效率。

5.To improve the isentropic efficiency 绝热效率 of gas turbines, engineers often implement advanced cooling techniques.

为了提高燃气涡轮的isentropic efficiency 绝热效率，工程师们通常会实施先进的冷却技术。

作文

In the field of thermodynamics, one of the critical concepts is the isentropic efficiency, which plays a significant role in analyzing the performance of various thermodynamic cycles, especially in turbines and compressors. The term 'isentropic' refers to a process that is both adiabatic and reversible, meaning there is no heat transfer and no increase in entropy during the process. Thus, the isentropic efficiency serves as a measure of how efficiently a device converts energy from one form to another while maintaining these ideal conditions. Understanding the isentropic efficiency is essential for engineers and scientists who design and optimize systems such as gas turbines, steam turbines, and refrigeration cycles. For instance, in a gas turbine, air is compressed, mixed with fuel, and ignited to produce high-temperature exhaust gases. The efficiency of this process can be evaluated by comparing the actual work output to the work output that would occur if the process were perfectly isentropic. The formula for calculating isentropic efficiency is given by: isentropic efficiency = (Actual Work Output) / (Isentropic Work Output). This ratio provides insight into how much of the input energy is being effectively transformed into useful work. A higher isentropic efficiency indicates that the system is operating closer to its ideal conditions, thus maximizing performance and minimizing wasted energy. In practical applications, achieving a high isentropic efficiency is often challenging due to factors such as friction, turbulence, and heat losses. Engineers must consider these real-world limitations when designing systems. For example, in a compressor, the presence of friction can lead to energy losses that decrease the overall isentropic efficiency. Therefore, engineers often employ various strategies, such as optimizing blade designs and minimizing pressure drops, to enhance the isentropic efficiency of the system. Moreover, the concept of isentropic efficiency is not limited to mechanical devices; it also extends to heat exchangers and other thermal systems. By understanding and improving the isentropic efficiency of these systems, engineers can significantly reduce energy consumption and environmental impact. In conclusion, the isentropic efficiency is a fundamental concept in thermodynamics that helps engineers evaluate and improve the performance of energy conversion systems. As the world moves towards more sustainable energy solutions, understanding and optimizing isentropic efficiency will become increasingly important in the design and operation of various technological systems.

在热力学领域，一个关键概念是绝热效率，它在分析各种热力循环的性能时起着重要作用，尤其是在涡轮机和压缩机中。术语“绝热”指的是一个既无热传递又可逆的过程，这意味着在过程中没有热量转移，也没有熵增加。因此，绝热效率作为衡量设备在保持这些理想条件下将一种能量形式有效转换为另一种形式的能力的标准。理解绝热效率对于设计和优化诸如燃气涡轮、蒸汽涡轮和制冷循环等系统的工程师和科学家至关重要。例如，在燃气涡轮中，空气被压缩，与燃料混合并点燃以产生高温废气。通过比较实际输出功与如果过程完全绝热时的输出功，可以评估该过程的效率。计算绝热效率的公式为：绝热效率 = （实际功输出）/（绝热功输出）。这个比率提供了关于输入能量有多少被有效转化为有用功的信息。较高的绝热效率表明系统的运行接近其理想条件，从而最大化性能并最小化浪费的能量。在实际应用中，由于摩擦、湍流和热损失等因素，实现高绝热效率通常具有挑战性。工程师在设计系统时必须考虑这些现实世界的限制。例如，在压缩机中，摩擦的存在可能导致能量损失，从而降低整体绝热效率。因此，工程师通常采用各种策略，例如优化叶片设计和最小化压力损失，以提高系统的绝热效率。此外，绝热效率的概念不仅限于机械设备；它还扩展到热交换器和其他热系统。通过理解和改善这些系统的绝热效率，工程师可以显著减少能源消耗和环境影响。总之，绝热效率是热力学中的一个基本概念，帮助工程师评估和改善能量转换系统的性能。随着世界向更加可持续的能源解决方案迈进，理解和优化绝热效率在各种技术系统的设计和操作中将变得越来越重要。