net calorific value

简明释义

净热值

英英释义

The net calorific value (NCV) is the amount of energy released when a fuel is burned completely and the products of combustion are cooled to the initial temperature of the fuel, excluding the heat of vaporization of water in the combustion products.

净热值(NCV)是指燃料完全燃烧时释放的能量,当燃烧产物被冷却到燃料的初始温度时,不包括燃烧产物中水的汽化热。

例句

1.When calculating the efficiency of a boiler, it is important to consider the net calorific value of the fuel used.

在计算锅炉效率时,考虑所用燃料的净热值是很重要的。

2.To compare different fuels, we often look at their net calorific value per kilogram.

为了比较不同燃料,我们通常查看它们每千克的净热值

3.The net calorific value of biomass can vary significantly depending on its moisture content.

生物质的净热值会因其水分含量而有显著变化。

4.The net calorific value of natural gas is typically higher than that of coal.

天然气的净热值通常高于煤炭。

5.In energy production, knowing the net calorific value helps in optimizing fuel usage.

在能源生产中,了解净热值有助于优化燃料使用。

作文

Understanding energy sources and their efficiency is crucial in today's world, especially as we strive for sustainable development and reduced environmental impact. One important concept in this field is the net calorific value, which refers to the amount of energy released when a fuel is burned, excluding the energy contained in the water vapor produced during combustion. This measurement is essential for evaluating the effectiveness of different fuels and their contributions to energy production. The net calorific value (NCV) is often used in the energy industry to assess the quality of fuels such as natural gas, coal, and biomass. By knowing the NCV, energy producers can determine how much energy they can generate from a specific amount of fuel. For instance, if a particular type of coal has a high net calorific value, it means that it can produce a significant amount of energy per unit weight, making it a more efficient choice for power generation. Moreover, the net calorific value plays a pivotal role in optimizing energy consumption. By comparing the NCVs of various fuels, industries can make informed decisions about which fuel to use based on cost-effectiveness and environmental considerations. For example, renewable energy sources like wood pellets may have a lower NCV compared to fossil fuels, but their sustainability and lower carbon emissions make them an attractive option in the long run. In addition to its practical applications, understanding the net calorific value also aids in policy-making and regulatory measures concerning energy use. Governments and organizations can set standards and incentives based on the NCV of different fuels, promoting the use of cleaner and more efficient energy sources. This is particularly relevant in the fight against climate change, where reducing greenhouse gas emissions is a top priority. Furthermore, the net calorific value is not only applicable to solid and gaseous fuels but also to liquid fuels like oil and biofuels. Each fuel type has its own NCV, which can vary based on factors such as composition and moisture content. Understanding these variations helps in the development of more efficient engines and heating systems, ultimately leading to improved energy efficiency. In conclusion, the net calorific value is a fundamental concept in the energy sector that helps us understand and evaluate the efficiency of different fuels. It serves as a critical metric for energy production, consumption optimization, and policy-making. As we continue to seek sustainable energy solutions, grasping the significance of the net calorific value will be essential for both individuals and industries aiming to reduce their environmental footprint and enhance energy efficiency. By prioritizing fuels with higher NCVs, we can move toward a more sustainable future, balancing energy needs with ecological responsibility.

理解能源来源及其效率在当今世界至关重要,特别是在我们努力实现可持续发展和减少环境影响的过程中。一个重要的概念是净热值,它指的是燃料燃烧时释放的能量,排除燃烧过程中产生的水蒸气所含的能量。这个测量对于评估不同燃料的有效性及其对能源生产的贡献至关重要。净热值(NCV)通常用于能源行业,以评估天然气、煤炭和生物质等燃料的质量。通过了解NCV,能源生产者可以确定从特定数量的燃料中可以产生多少能量。例如,如果某种类型的煤炭具有较高的净热值,这意味着它每单位重量能够产生大量能量,使其成为发电的更高效选择。此外,净热值在优化能源消耗方面也发挥着关键作用。通过比较各种燃料的NCV,工业可以根据成本效益和环境考虑做出明智的决策。例如,虽然木颗粒等可再生能源的NCV可能低于化石燃料,但其可持续性和较低的碳排放使其在长期内成为一种有吸引力的选择。除了实际应用外,理解净热值还有助于制定与能源使用有关的政策和监管措施。政府和组织可以基于不同燃料的NCV设定标准和激励措施,促进使用更清洁、更高效的能源。这在应对气候变化的斗争中尤为相关,其中减少温室气体排放是首要任务。此外,净热值不仅适用于固体和气体燃料,还适用于油和生物燃料等液体燃料。每种燃料类型都有其自己的NCV,这可能因成分和水分含量等因素而异。理解这些变化有助于开发更高效的发动机和供暖系统,最终提高能源效率。总之,净热值是能源领域的一个基本概念,帮助我们理解和评估不同燃料的效率。它作为能源生产、消费优化和政策制定的关键指标。随着我们继续寻求可持续能源解决方案,掌握净热值的重要性将对个人和工业在减少环境足迹和提高能源效率方面至关重要。通过优先选择具有较高NCV的燃料,我们可以朝着更可持续的未来迈进,平衡能源需求与生态责任。

相关单词

calorific

calorific详解:怎么读、什么意思、用法