excess air coefficient

简明释义

过量空气系数

英英释义

例句

1.In combustion analysis, the optimal excess air coefficient is crucial for maximizing efficiency.

在燃烧分析中，最佳过量空气系数对最大化效率至关重要。

2.The excess air coefficient is a key parameter in designing efficient combustion systems.

过量空气系数是设计高效燃烧系统的关键参数。

3.To achieve complete combustion, engineers often calculate the excess air coefficient for fuel types.

为了实现完全燃烧，工程师通常会计算燃料类型的过量空气系数。

4.A high excess air coefficient can lead to lower combustion temperatures and increased emissions.

较高的过量空气系数可能导致较低的燃烧温度和增加的排放。

5.Monitoring the excess air coefficient helps in optimizing the performance of industrial boilers.

监测过量空气系数有助于优化工业锅炉的性能。

作文

The concept of excess air coefficient is essential in the field of combustion engineering. It refers to the ratio of the actual amount of air used in a combustion process to the theoretical amount of air required for complete combustion of the fuel. Understanding this coefficient is crucial for optimizing combustion systems, improving efficiency, and reducing emissions. When fuel burns, it requires a specific amount of oxygen to convert into energy. However, in many practical applications, more air than necessary is often supplied to ensure that the fuel burns completely. This additional air is termed 'excess air.' The excess air coefficient helps engineers determine how much extra air is needed beyond the stoichiometric requirement. A coefficient greater than one indicates that there is excess air present, while a coefficient equal to one signifies that the air-fuel mixture is ideal for complete combustion. Conversely, a coefficient less than one suggests that there is insufficient air, which can lead to incomplete combustion, resulting in unburned fuel and increased emissions of pollutants such as carbon monoxide and hydrocarbons.In industrial applications, maintaining an appropriate excess air coefficient is vital for several reasons. First, it directly affects the thermal efficiency of combustion systems. When too much excess air is introduced, it can cool the flame, leading to lower temperatures and reduced efficiency. On the other hand, insufficient air can cause hotspots and increase the likelihood of equipment damage due to excessive heat. Therefore, balancing the excess air coefficient is a critical aspect of combustion management.Moreover, the environmental impact of combustion processes cannot be overlooked. With increasing regulations on emissions, industries are compelled to optimize their operations to minimize their carbon footprint. By controlling the excess air coefficient, companies can reduce harmful emissions significantly. For instance, achieving a lower excess air level can lead to decreased nitrogen oxide (NOx) emissions, which are a major contributor to air pollution and smog formation.In conclusion, the excess air coefficient plays a pivotal role in the efficiency and environmental performance of combustion systems. Engineers must carefully analyze and adjust this coefficient to achieve optimal combustion conditions, ensuring that fuel is used efficiently while minimizing emissions. As technology advances, the understanding and application of the excess air coefficient will continue to be an integral part of developing cleaner and more efficient combustion technologies.

过量空气系数的概念在燃烧工程领域至关重要。它指的是在燃烧过程中实际使用的空气量与完全燃烧所需的理论空气量之间的比率。理解这个系数对于优化燃烧系统、提高效率和减少排放至关重要。当燃料燃烧时，需要特定量的氧气将其转化为能量。然而，在许多实际应用中，通常会提供比必要的更多的空气，以确保燃料完全燃烧。这种额外的空气被称为“过量空气”。过量空气系数帮助工程师确定在化学计量要求之外需要多少额外的空气。系数大于1表示存在过量空气，而系数等于1则表明空气-燃料混合物适合完全燃烧。相反，系数小于1则表明空气不足，这可能导致不完全燃烧，导致未燃烧的燃料和增加的一氧化碳和烃类污染物的排放。在工业应用中，保持适当的过量空气系数对多个原因至关重要。首先，它直接影响燃烧系统的热效率。当引入过多的过量空气时，会使火焰降温，从而导致温度降低和效率降低。另一方面，空气不足可能导致热点，并增加由于过高的热量造成设备损坏的可能性。因此，平衡过量空气系数是燃烧管理的关键方面。此外，燃烧过程的环境影响不能被忽视。随着对排放的监管日益严格，工业界被迫优化其操作以最小化碳足迹。通过控制过量空气系数，公司可以显著减少有害排放。例如，达到较低的过量空气水平可以导致氮氧化物（NOx）排放的减少，而氮氧化物是空气污染和雾霾形成的主要贡献者。总之，过量空气系数在燃烧系统的效率和环境性能中发挥着关键作用。工程师必须仔细分析和调整该系数，以实现最佳燃烧条件，确保有效利用燃料，同时最小化排放。随着技术的进步，过量空气系数的理解和应用将继续成为开发更清洁、更高效的燃烧技术的重要组成部分。