excess air

简明释义

过剩空气

英英释义

例句

1.The presence of excess air 过量空气 in the exhaust indicates incomplete combustion.

排气中存在excess air 过量空气表明燃烧不完全。

2.Monitoring excess air 过量空气 levels is crucial for maintaining a safe operation in industrial furnaces.

监测excess air 过量空气水平对于维持工业炉的安全运行至关重要。

3.In combustion processes, too much excess air 过量空气 can lead to lower efficiency.

在燃烧过程中，过多的excess air 过量空气会导致效率降低。

4.The engineer recommended reducing the excess air 过量空气 to optimize the heating system.

工程师建议减少excess air 过量空气以优化供热系统。

5.To improve fuel efficiency, it's important to minimize excess air 过量空气 in the system.

为了提高燃料效率，重要的是最小化系统中的excess air 过量空气。

作文

In the world of combustion and energy production, understanding the role of excess air is crucial for optimizing efficiency and reducing emissions. Excess air refers to the additional air supplied to a combustion process beyond what is theoretically required for complete combustion of the fuel. This concept is particularly important in industrial applications such as power plants, boilers, and internal combustion engines. When fuel burns, it reacts with oxygen to produce energy, water, and carbon dioxide. The ideal scenario is that all fuel is consumed with just the right amount of oxygen. However, in real-world applications, achieving perfect combustion is often impossible due to factors like fuel quality, temperature variations, and equipment design. Therefore, operators introduce excess air to ensure that all fuel burns completely, which can help minimize the release of unburned hydrocarbons and carbon monoxide into the atmosphere.However, while excess air can enhance combustion efficiency, it also has its downsides. Introducing too much air can lead to a decrease in thermal efficiency. This happens because the extra air absorbs some of the heat generated during combustion, which could otherwise be used to produce useful work. The result is that more fuel may be needed to achieve the same output, leading to higher operational costs and increased emissions of nitrogen oxides (NOx), which are harmful pollutants.Finding the right balance of excess air is essential. Operators often use a measurement called the air-fuel ratio to determine the optimal levels. This ratio indicates how much air is mixed with each unit of fuel. By carefully monitoring this ratio, operators can adjust the amount of excess air to achieve the best performance from their systems. This not only improves energy efficiency but also reduces the environmental impact of combustion processes.Moreover, advancements in technology have led to the development of sophisticated control systems that can automatically adjust the excess air levels based on real-time data. These systems utilize sensors to monitor combustion conditions and make adjustments to maintain the ideal air-fuel ratio. As a result, industries can significantly reduce their carbon footprint and comply with environmental regulations more effectively.In conclusion, while excess air plays a vital role in ensuring complete combustion and preventing emissions, it must be managed carefully to avoid inefficiencies. The challenge lies in finding the right amount of excess air that enables optimal combustion without wasting fuel or increasing harmful emissions. As industries continue to evolve and strive for greater sustainability, understanding and managing excess air will remain a critical aspect of energy production and environmental stewardship.

在燃烧和能源生产的世界中，理解过量空气的作用对于优化效率和减少排放至关重要。过量空气是指在燃料的完全燃烧所需的理论空气量之外，额外提供给燃烧过程的空气。这一概念在发电厂、锅炉和内燃机等工业应用中尤为重要。当燃料燃烧时，它与氧气反应产生能量、水和二氧化碳。理想的情况是所有燃料都与恰当数量的氧气完全消耗。然而，在现实应用中，由于燃料质量、温度变化和设备设计等因素，达到完美燃烧通常是不可能的。因此，操作人员引入过量空气以确保所有燃料完全燃烧，这有助于减少未燃烧的烃类和一氧化碳排放到大气中。然而，虽然过量空气可以提高燃烧效率，但它也有其缺点。引入过多的空气会导致热效率下降。这是因为多余的空气吸收了燃烧过程中产生的一部分热量，而这些热量本可以用来产生有用的工作。结果是，可能需要更多的燃料才能实现相同的输出，导致更高的运营成本和氮氧化物（NOx）排放增加，这些都是有害的污染物。找到过量空气的正确平衡至关重要。操作人员通常使用一个称为空气-燃料比的测量值来确定最佳水平。这个比率表示每单位燃料混合了多少空气。通过仔细监测这个比率，操作人员可以调整过量空气的量，以实现系统的最佳性能。这不仅提高了能源效率，还减少了燃烧过程对环境的影响。此外，技术的进步使得开发出复杂的控制系统成为可能，这些系统可以根据实时数据自动调整过量空气的水平。这些系统利用传感器监测燃烧条件，并进行调整以保持理想的空气-燃料比。因此，工业可以显著降低其碳足迹，更有效地遵守环境法规。总之，虽然过量空气在确保完全燃烧和防止排放中发挥着重要作用，但必须小心管理，以避免低效。挑战在于找到适量的过量空气，以实现最佳燃烧，而不浪费燃料或增加有害排放。随着工业不断发展并努力实现更大的可持续性，理解和管理过量空气将仍然是能源生产和环境保护的重要方面。