powdered coal

简明释义

煤尘

英英释义

例句

1.In cement production, powdered coal serves as a crucial fuel source.

在水泥生产中，粉煤是一个关键的燃料来源。

2.Powdered coal is often mixed with air before being fed into the furnace.

粉煤通常与空气混合后送入炉内。

3.Transporting powdered coal requires special handling to prevent dust emissions.

运输粉煤需要特别处理以防止粉尘排放。

4.The combustion of powdered coal in industrial boilers can produce high temperatures.

在工业锅炉中燃烧粉煤可以产生高温。

5.The power plant uses powdered coal to generate electricity efficiently.

发电厂使用粉煤高效地发电。

作文

In recent years, the energy sector has undergone significant changes, with a growing emphasis on sustainable and renewable sources of energy. However, traditional fossil fuels still play a crucial role in meeting global energy demands. One such fossil fuel is powdered coal, which is increasingly being used in various industrial applications. Understanding the significance of powdered coal is essential for grasping the complexities of energy production and its environmental impacts.Powdered coal refers to finely ground coal that is used primarily in power generation and industrial processes. The process of grinding coal into a fine powder allows for more efficient combustion, as it increases the surface area available for burning. This results in higher thermal efficiency and reduced emissions when compared to larger coal particles. Many power plants utilize powdered coal in their boilers, where it is mixed with air and ignited to produce steam that drives turbines for electricity generation.The use of powdered coal is not without its challenges. While it offers improved efficiency, the combustion of coal contributes significantly to greenhouse gas emissions, particularly carbon dioxide. As the world grapples with climate change, the reliance on coal, even in its powdered form, raises concerns among environmentalists and policymakers. Efforts are being made to transition towards cleaner energy sources, but the reality is that many countries still depend heavily on coal for their energy needs.Moreover, the extraction and processing of coal have detrimental effects on the environment. Mining operations can lead to habitat destruction, soil erosion, and water pollution. The transportation of powdered coal also poses risks, as dust emissions can harm air quality and public health. Therefore, while powdered coal remains an important energy source, it is crucial to consider the broader implications of its use.To mitigate the negative impacts associated with powdered coal, advancements in technology are being explored. Carbon capture and storage (CCS) is one such innovation aimed at reducing emissions from coal-fired power plants. By capturing carbon dioxide produced during combustion and storing it underground, CCS could potentially make the use of powdered coal more environmentally friendly. However, this technology is still in its infancy and requires significant investment and research to become widely adopted.In conclusion, powdered coal plays a vital role in the current energy landscape, particularly in power generation. While it offers advantages in terms of efficiency, the environmental consequences of its use cannot be overlooked. As society moves towards a more sustainable future, it is imperative to find a balance between meeting energy demands and protecting the environment. The ongoing dialogue surrounding powdered coal and its alternatives will shape the energy policies of tomorrow, making it a critical topic for both industry leaders and consumers alike.

近年来，能源行业经历了重大变化，越来越重视可持续和可再生能源。然而，传统化石燃料仍在满足全球能源需求方面发挥着至关重要的作用。其中一种化石燃料是粉煤，它在各种工业应用中越来越多地被使用。理解粉煤的重要性对于掌握能源生产的复杂性及其对环境的影响至关重要。粉煤是指经过精细研磨的煤，主要用于发电和工业过程。将煤研磨成细粉的过程能够提高燃烧效率，因为它增加了可燃烧表面积。这导致热效率更高，与较大煤粒相比，排放量减少。许多发电厂在其锅炉中利用粉煤，将其与空气混合并点燃，以产生驱动涡轮机发电的蒸汽。使用粉煤并非没有挑战。虽然它提供了更高的效率，但煤的燃烧显著贡献了温室气体排放，特别是二氧化碳。随着世界应对气候变化，对煤炭的依赖，即使是以粉末形式，也引发了环保人士和政策制定者的担忧。虽然正在努力向更清洁的能源来源过渡，但现实是许多国家仍然严重依赖煤炭来满足能源需求。此外，煤的开采和加工对环境造成了危害。采矿作业可能导致栖息地破坏、土壤侵蚀和水污染。粉煤的运输也存在风险，因为灰尘排放可能损害空气质量和公众健康。因此，尽管粉煤仍然是一个重要的能源来源，但考虑其使用的更广泛影响至关重要。为了减轻与粉煤相关的负面影响，正在探索技术进步。碳捕集与存储（CCS）就是一种旨在减少煤电厂排放的创新。通过捕获燃烧过程中产生的二氧化碳并将其储存于地下，CCS可能会使粉煤的使用更加环保。然而，这项技术仍处于起步阶段，需要大量投资和研究才能广泛采用。总之，粉煤在当前的能源格局中发挥着至关重要的作用，特别是在发电方面。虽然它在效率上具有优势，但其使用的环境后果不容忽视。随着社会朝着更加可持续的未来发展，找到满足能源需求与保护环境之间的平衡至关重要。围绕粉煤及其替代品的持续对话将塑造明天的能源政策，使其成为行业领导者和消费者共同关注的重要议题。