calorific value

简明释义

发热量

英英释义

例句

1.The calorific value of coal is an important factor in determining its efficiency as a fuel source.

煤的热值是决定其作为燃料来源效率的重要因素。

2.Higher calorific value means more energy output from the same amount of fuel.

更高的热值意味着从相同数量的燃料中获得更多的能量输出。

3.Natural gas typically has a higher calorific value compared to wood.

天然气的热值通常高于木材。

4.To calculate the efficiency of a power plant, engineers must analyze the calorific value of the fuel used.

为了计算发电厂的效率，工程师必须分析所用燃料的热值。

5.When comparing different types of fuels, it's essential to consider their calorific value.

在比较不同类型的燃料时，考虑它们的热值是至关重要的。

作文

The concept of calorific value is crucial in understanding the energy content of various fuels. This term refers to the amount of energy released when a specific quantity of fuel is completely burned. It is usually measured in kilojoules per kilogram (kJ/kg) or megajoules per kilogram (MJ/kg). Knowing the calorific value of a fuel allows us to determine its efficiency and suitability for different applications, such as heating, electricity generation, or transportation.In our daily lives, we encounter many sources of energy, from natural gas used in our homes to gasoline that powers our vehicles. Each of these fuels has its own unique calorific value, which influences how much energy we can obtain from them. For instance, natural gas typically has a higher calorific value compared to coal, making it a more efficient option for heating purposes. This efficiency is not only important for economic reasons but also for environmental considerations, as using fuels with higher calorific values can lead to lower greenhouse gas emissions.Furthermore, the calorific value can vary significantly based on the composition of the fuel. For example, biofuels derived from organic materials may have different calorific values depending on their source, processing methods, and moisture content. Understanding these variations is essential for industries that rely on biomass as a renewable energy source.In the context of renewable energy, the calorific value plays a vital role in evaluating the feasibility of alternative fuels. As the world shifts towards more sustainable energy practices, the demand for fuels with high calorific values increases. Solar energy, wind power, and hydroelectricity do not have a calorific value in the traditional sense, but they contribute to the overall energy mix by providing clean alternatives to fossil fuels.Moreover, the calorific value is not just a number; it has real-world implications for energy policy and investment decisions. Governments and organizations often analyze the calorific values of different energy sources to make informed choices about energy production and consumption. This analysis helps in developing strategies to reduce reliance on fossil fuels while promoting cleaner energy technologies.In conclusion, the calorific value is a fundamental concept that underpins our understanding of energy sources. Whether we are discussing conventional fuels like coal and natural gas or exploring renewable options, knowing the calorific value allows us to assess the efficiency and environmental impact of our energy choices. As we continue to navigate the challenges of climate change and energy sustainability, the importance of calorific value will only grow, guiding us towards a more efficient and responsible energy future.

“热值”这一概念对于理解各种燃料的能量含量至关重要。这个术语指的是在特定数量的燃料完全燃烧时释放的能量。它通常以千焦耳每千克（kJ/kg）或兆焦耳每千克（MJ/kg）为单位进行测量。了解燃料的“热值”使我们能够确定其效率和适合不同应用（如供暖、发电或交通）的能力。在我们的日常生活中，我们会遇到许多能源来源，从家用天然气到驱动汽车的汽油。这些燃料中的每一种都有其独特的“热值”，这影响着我们从中获得多少能量。例如，天然气的“热值”通常高于煤，使其成为供暖的更有效选择。这种效率不仅对经济原因重要，而且对环境考虑也至关重要，因为使用“热值”较高的燃料可以导致温室气体排放减少。此外，“热值”可能因燃料的成分而显著变化。例如，源自有机材料的生物燃料的“热值”可能因其来源、加工方法和水分含量而有所不同。理解这些变化对依赖生物质作为可再生能源的行业至关重要。在可再生能源的背景下，“热值”在评估替代燃料的可行性方面发挥着重要作用。随着世界向更可持续的能源实践转变，对“热值”高的燃料的需求不断增加。太阳能、风能和水电在传统意义上没有“热值”，但它们通过提供清洁的替代化石燃料为整体能源组合做出了贡献。此外，“热值”不仅仅是一个数字；它对能源政策和投资决策具有实际意义。政府和组织经常分析不同能源来源的“热值”，以便对能源生产和消费做出明智的选择。这种分析有助于制定减少对化石燃料依赖的战略，同时促进更清洁的能源技术。总之，“热值”是一个基础概念，支撑着我们对能源来源的理解。无论是在讨论煤和天然气等传统燃料，还是在探索可再生选项时，了解“热值”使我们能够评估能源选择的效率和环境影响。随着我们继续应对气候变化和能源可持续性的挑战，“热值”的重要性只会增加，引导我们走向更高效和负责任的能源未来。