heating value

简明释义

1. 发热量; 2. 热值; 3. 卡值;

英英释义

例句

1.The heating value of natural gas is higher than that of coal, making it a preferred energy source.

天然气的热值高于煤，因此成为更受欢迎的能源来源。

2.Different types of wood have varying heating values, which affect their suitability for burning.

不同类型的木材具有不同的热值，这影响了它们的燃烧适用性。

3.The heating value of a fuel can determine its cost-effectiveness in energy production.

燃料的热值可以决定其在能源生产中的成本效益。

4.In our laboratory, we measured the heating value of various biomass materials.

在我们的实验室中，我们测量了各种生物质材料的热值。

5.When calculating the efficiency of a boiler, it's important to consider the heating value of the fuel used.

在计算锅炉的效率时，考虑所用燃料的热值是很重要的。

作文

The term heating value refers to the amount of energy that can be obtained from a specific quantity of fuel when it is burned. This concept is crucial in various fields, including energy production, environmental science, and engineering. Understanding heating value is essential for optimizing fuel usage and improving energy efficiency. In simple terms, the higher the heating value of a fuel, the more energy it can produce per unit of weight or volume. There are two main types of heating value: the higher heating value (HHV) and the lower heating value (LHV). The HHV measures the total energy released when a fuel is burned, including the energy contained in the water vapor produced during combustion. On the other hand, the LHV excludes this energy, as it assumes that the water remains in vapor form and does not condense. This distinction is important because it affects how we calculate the efficiency of different fuels. For instance, natural gas typically has a high heating value, making it a popular choice for heating and electricity generation.In practical applications, knowing the heating value of fuels helps industries decide which fuel to use based on cost-effectiveness and energy output. For example, coal, oil, and natural gas have different heating values, which influence their prices and availability. Additionally, renewable energy sources like biomass and biofuels also have their own heating values, which must be considered when integrating them into existing energy systems.Moreover, understanding the heating value is vital for environmental considerations. Fuels with higher heating values tend to produce more energy and less waste when burned, which can lead to lower emissions of greenhouse gases and other pollutants. This is particularly relevant in the context of climate change, where reducing carbon footprints is a global priority. Therefore, by choosing fuels with optimal heating values, we can contribute to more sustainable energy practices.In conclusion, the concept of heating value plays a significant role in energy management and environmental protection. By comprehensively understanding heating value, we can make informed decisions about fuel selection, improve energy efficiency, and mitigate environmental impacts. As the world continues to seek cleaner and more efficient energy solutions, the importance of heating value will only grow, guiding us toward a more sustainable future.

术语heating value指的是从特定数量的燃料燃烧中获得的能量。这个概念在多个领域中至关重要，包括能源生产、环境科学和工程。理解heating value对于优化燃料使用和提高能源效率至关重要。简单来说，燃料的heating value越高，每单位重量或体积产生的能量就越多。heating value主要有两种类型：高热值（HHV）和低热值（LHV）。HHV测量燃料燃烧时释放的总能量，包括燃烧过程中产生的水蒸气所含的能量。另一方面，LHV不包括这些能量，因为它假设水保持在蒸汽状态而不凝结。这一区别很重要，因为它影响我们计算不同燃料的效率。例如，天然气通常具有较高的heating value，使其成为供暖和发电的热门选择。在实际应用中，了解燃料的heating value帮助行业根据成本效益和能量输出决定使用哪种燃料。例如，煤、石油和天然气具有不同的heating values，这影响了它们的价格和可用性。此外，像生物质和生物燃料这样的可再生能源也有自己的heating values，在将它们整合到现有能源系统时必须考虑。此外，理解heating value对环境考虑至关重要。具有较高heating values的燃料在燃烧时往往能产生更多能量和更少废物，这可以导致温室气体和其他污染物的排放降低。这在气候变化的背景下尤其相关，减少碳足迹是全球优先事项。因此，通过选择具有最佳heating values的燃料，我们可以为更可持续的能源实践做出贡献。总之，heating value的概念在能源管理和环境保护中扮演着重要角色。通过全面理解heating value，我们可以就燃料选择做出明智决策，提高能源效率，并减轻环境影响。随着世界继续寻求更清洁、更高效的能源解决方案，heating value的重要性将只会增加，引导我们走向更可持续的未来。