mean effective pressure

简明释义

平均有效压力

英英释义

例句

1.The engine's performance can be evaluated by calculating the mean effective pressure, which is a measure of its efficiency.

通过计算平均有效压力，可以评估发动机的性能，这是其效率的衡量标准。

2.A higher mean effective pressure typically indicates a more powerful engine output.

更高的平均有效压力通常表明更强大的发动机输出。

3.The mean effective pressure of the hydraulic system was measured to ensure it operates within safe limits.

为了确保液压系统在安全范围内运行，测量了其平均有效压力。

4.By optimizing the mean effective pressure, engineers can enhance the fuel efficiency of combustion engines.

通过优化平均有效压力，工程师可以提高燃烧发动机的燃油效率。

5.In thermodynamics, mean effective pressure is crucial for understanding the work output of a cycle.

在热力学中，平均有效压力对于理解一个循环的功输出至关重要。

作文

Understanding the concept of mean effective pressure is crucial for anyone involved in the fields of engineering and thermodynamics. The term refers to a specific measure used in the analysis of internal combustion engines and other thermodynamic systems. Essentially, mean effective pressure (often abbreviated as MEP) represents the average pressure in the combustion chamber during one complete cycle of the engine. This metric allows engineers to assess the performance and efficiency of an engine by providing insights into how effectively it converts fuel into mechanical work.In practical terms, mean effective pressure can be calculated using the work done by the engine per cycle divided by the displacement volume of the engine. This relationship indicates how much pressure is exerted on the pistons during the power stroke, which directly influences the engine's output power. Therefore, a higher mean effective pressure typically correlates with greater engine efficiency and performance.The importance of mean effective pressure extends beyond mere calculations; it plays a vital role in the design and optimization of engines. Engineers often use this parameter when comparing different engine designs or fuels. For instance, an engine that operates at a higher mean effective pressure may be more efficient than one that runs at lower pressures, provided that other factors such as thermal efficiency and friction losses are taken into account.Moreover, understanding mean effective pressure is essential for diagnosing engine performance issues. If an engine is underperforming, analyzing the mean effective pressure can help identify whether problems stem from insufficient fuel combustion, mechanical failures, or other issues. By monitoring this parameter, engineers can make informed decisions about necessary adjustments or repairs.In the context of environmental concerns, optimizing mean effective pressure can also lead to reduced emissions. Engines that operate efficiently tend to produce fewer pollutants, which is increasingly important as regulations around emissions become stricter. By focusing on maximizing mean effective pressure, manufacturers can develop engines that not only perform better but also align with sustainability goals.In conclusion, the concept of mean effective pressure is a fundamental aspect of engine design and performance evaluation. Its implications reach far beyond simple calculations, influencing everything from engine diagnostics to environmental impact. As technology continues to evolve, the significance of mean effective pressure will undoubtedly grow, making it an essential topic for engineers and researchers alike. Understanding this concept is not just beneficial; it is necessary for advancing the future of automotive engineering and ensuring that we create more efficient, powerful, and environmentally friendly engines.

理解平均有效压力的概念对任何参与工程和热力学领域的人来说都是至关重要的。这个术语指的是用于分析内燃机和其他热力学系统的特定测量。基本上，平均有效压力（通常缩写为MEP）代表发动机在一个完整循环中燃烧室内的平均压力。这个指标使工程师能够通过提供燃料转化为机械功的有效性洞察来评估发动机的性能和效率。从实际角度来看，平均有效压力可以通过每个循环发动机所做的功除以发动机的位移体积来计算。这种关系表明在动力冲程期间施加在活塞上的压力，这直接影响发动机的输出功率。因此，更高的平均有效压力通常与更大的发动机效率和性能相关。平均有效压力的重要性超出了简单的计算；它在发动机的设计和优化中发挥着至关重要的作用。工程师们经常在比较不同的发动机设计或燃料时使用这个参数。例如，一个在较高平均有效压力下运行的发动机可能比在较低压力下运行的发动机更有效，前提是考虑到热效率和摩擦损失等其他因素。此外，理解平均有效压力对于诊断发动机性能问题也至关重要。如果一台发动机表现不佳，分析平均有效压力可以帮助识别问题是否源于燃料燃烧不足、机械故障或其他问题。通过监测这个参数，工程师可以就必要的调整或维修做出明智的决定。在环境问题的背景下，优化平均有效压力还可以减少排放。高效运行的发动机往往产生更少的污染物，随着排放法规变得越来越严格，这一点变得越来越重要。通过专注于最大化平均有效压力，制造商可以开发出不仅性能更好，而且符合可持续发展目标的发动机。总之，平均有效压力的概念是发动机设计和性能评估的基本方面。它的影响远远超出了简单的计算，影响着从发动机诊断到环境影响的方方面面。随着技术的不断发展，平均有效压力的重要性无疑会增加，使其成为工程师和研究人员必须关注的主题。理解这一概念不仅有益，而且对推动汽车工程的未来、确保我们创造出更高效、更强大和更环保的发动机是必要的。