Low calorific value of coal

简明释义

煤的低位发热量

英英释义

例句

1.Engineers are concerned about the Low calorific value of coal 煤的低热值 affecting the efficiency of the boiler.

工程师们担心Low calorific value of coal 煤的低热值会影响锅炉的效率。

2.Due to the Low calorific value of coal 煤的低热值, the company decided to import higher quality coal.

由于Low calorific value of coal 煤的低热值，公司决定进口更高质量的煤。

3.The power plant had to switch to a different fuel due to the Low calorific value of coal 煤的低热值 it was using.

电厂不得不切换到其他燃料，因为它使用的Low calorific value of coal 煤的低热值。

4.The Low calorific value of coal 煤的低热值 can lead to increased emissions if not managed properly.

如果管理不当，Low calorific value of coal 煤的低热值可能导致排放增加。

5.When evaluating coal for combustion, one must consider the Low calorific value of coal 煤的低热值 as a critical factor.

在评估用于燃烧的煤时，必须将Low calorific value of coal 煤的低热值作为一个关键因素考虑。

作文

The use of coal as an energy source has been a topic of discussion for many years. One important aspect that is often overlooked is the Low calorific value of coal, which refers to the amount of energy produced when coal is burned. This factor can significantly impact the efficiency and environmental footprint of coal as a fuel source. Understanding the Low calorific value of coal is crucial for industries that rely on coal for power generation and manufacturing processes.Coal is composed of various organic materials, and its calorific value varies depending on its type and quality. Generally, a higher calorific value indicates that the coal contains more energy per unit weight, making it more efficient for combustion. In contrast, the Low calorific value of coal means that less energy is produced from the same amount of coal, leading to increased fuel consumption and higher emissions of pollutants.One of the main reasons for the Low calorific value of coal can be attributed to its moisture content. Coal with high moisture levels will burn less efficiently, as some of the energy is used to evaporate the water instead of generating heat. Additionally, the presence of impurities such as sulfur and ash can also contribute to a lower calorific value. These impurities not only reduce the energy output but can also lead to environmental concerns, including acid rain and air pollution.Industries must take into account the Low calorific value of coal when planning their operations. For instance, power plants may need to burn larger quantities of coal to produce the same amount of electricity if they are using low-quality coal. This can result in higher operational costs and increased greenhouse gas emissions. Therefore, it is essential for companies to invest in technologies that can improve the efficiency of coal combustion or consider alternative energy sources that offer higher calorific values.Furthermore, understanding the Low calorific value of coal can aid in the development of cleaner coal technologies. By optimizing the combustion process and reducing emissions, industries can minimize their environmental impact while still utilizing coal as a resource. This includes advancements in carbon capture and storage (CCS) technologies, which aim to capture carbon dioxide emissions from coal-fired power plants and store them underground.In conclusion, the Low calorific value of coal is a critical factor that affects the efficiency and environmental sustainability of coal usage. As the world moves towards more sustainable energy practices, it is vital for industries to recognize the implications of using coal with a low calorific value. By improving combustion techniques and exploring cleaner alternatives, we can work towards a more sustainable energy future while still meeting our energy demands. The transition may not be easy, but understanding the importance of the Low calorific value of coal is a step in the right direction.

煤作为能源来源的使用已经成为多年来讨论的话题。一个经常被忽视的重要方面是煤的低热值，它指的是煤燃烧时产生的能量量。这个因素可以显著影响煤作为燃料来源的效率和环境足迹。理解煤的低热值对于依赖煤进行发电和制造过程的行业至关重要。煤由各种有机材料组成，其热值因类型和质量而异。一般来说，较高的热值表明煤每单位重量含有更多的能量，使其在燃烧时更有效率。相反，煤的低热值意味着从同样数量的煤中产生的能量较少，导致燃料消耗增加和污染物排放增加。煤的低热值的主要原因之一可以归因于其水分含量。水分含量高的煤燃烧效率较低，因为一部分能量用于蒸发水而不是产生热量。此外，硫和灰分等杂质的存在也会导致热值降低。这些杂质不仅减少了能量输出，还可能导致环境问题，包括酸雨和空气污染。工业在规划运营时必须考虑煤的低热值。例如，如果发电厂使用低质量的煤，可能需要燃烧更多的煤以产生相同数量的电力。这可能导致更高的运营成本和温室气体排放增加。因此，公司必须投资于能够提高煤燃烧效率的技术，或考虑提供更高热值的替代能源。此外，理解煤的低热值可以帮助开发更清洁的煤技术。通过优化燃烧过程并减少排放，工业可以在利用煤资源的同时最小化环境影响。这包括碳捕集与存储（CCS）技术的进步，旨在捕集煤电厂的二氧化碳排放并将其储存于地下。总之，煤的低热值是影响煤使用效率和环境可持续性的关键因素。随着世界朝着更可持续的能源实践迈进，工业认识到使用低热值煤的影响至关重要。通过改善燃烧技术和探索更清洁的替代方案，我们可以在满足能源需求的同时朝着更可持续的能源未来迈进。这一过渡可能并不容易，但理解煤的低热值的重要性是朝着正确方向迈出的一步。