lower calorific power

简明释义

低热值

英英释义

例句

1.The biomass fuel has a lower calorific power than coal, making it less efficient for energy production.

生物质燃料的低热值比煤低，这使得它在能源生产中效率较低。

2.In industrial applications, fuels with a lower calorific power may require larger quantities to achieve the same output.

在工业应用中，具有低热值的燃料可能需要更大量才能达到相同的产出。

3.The lower calorific power of this wood type means it burns faster and provides less heat over time.

这种木材的低热值意味着它燃烧得更快，并且随着时间推移提供的热量较少。

4.Natural gas typically has a lower calorific power compared to gasoline, which affects its usage in vehicles.

天然气的低热值通常低于汽油，这影响了其在车辆中的使用。

5.When comparing fuels, it's important to consider the lower calorific power to determine their suitability for heating.

在比较燃料时，考虑低热值是确定其适合用于供热的重要因素。

作文

The concept of energy is fundamental to our understanding of the physical world, and one important aspect of this is the measurement of fuel efficiency. When we talk about fuels, whether they are solid, liquid, or gaseous, we often refer to their calorific power. This term describes the amount of energy released when a specific quantity of fuel is burned. However, not all fuels are created equal, and some have a lower calorific power than others. Understanding what this means can help us make better choices regarding energy consumption and environmental impact.The lower calorific power (LCP) of a fuel refers to the amount of heat energy produced per unit mass or volume when the fuel is combusted, excluding the energy contained in the water vapor produced during combustion. In simpler terms, it is the energy available for use after accounting for the energy lost as water vapor. Fuels with a lower calorific power are less efficient because they provide less usable energy for the same amount of fuel consumed.For instance, consider the comparison between natural gas and coal. Natural gas typically has a higher calorific power compared to coal, which means that when you burn natural gas, you get more energy out of it per unit than you would from burning the same amount of coal. This difference in calorific power is crucial for industries that rely heavily on fuel for energy production. Using fuels with a higher calorific power can lead to lower emissions and reduced fuel costs, making them more attractive options for energy generation.Moreover, understanding lower calorific power is also essential for environmental considerations. Fuels with lower calorific values often produce more carbon dioxide and other pollutants per unit of energy generated. Therefore, transitioning to fuels with a higher calorific power can contribute to reducing greenhouse gas emissions and combating climate change. For instance, biofuels, which often have a lower calorific power compared to fossil fuels, may require larger quantities to produce the same amount of energy, leading to increased land use and potential deforestation.In addition, the lower calorific power of a fuel affects its storage and transportation. Fuels with lower energy content require larger volumes to store and transport the same amount of energy, increasing logistical challenges and costs. This is particularly relevant in remote areas where access to energy resources is limited. Understanding the calorific power of different fuels allows engineers and planners to design more efficient systems for energy distribution and usage.In conclusion, the concept of lower calorific power plays a significant role in the field of energy science. It helps us understand the efficiency of various fuels and their environmental impacts. By choosing fuels with higher calorific powers, we can optimize energy production, reduce emissions, and make more sustainable choices for the future. As we continue to explore alternative energy sources and strive for a greener planet, comprehending the implications of calorific power will be crucial in guiding our decisions and policies.

能量的概念是我们理解物理世界的基础，而燃料效率的测量是其中一个重要方面。当我们谈论燃料时，无论它们是固体、液体还是气体，我们通常会提到它们的热值。这个术语描述了特定数量的燃料燃烧时释放的能量。然而，并非所有燃料都是平等的，有些燃料的低热值比其他燃料要低。理解这意味着什么可以帮助我们在能源消耗和环境影响方面做出更好的选择。燃料的低热值（LCP）指的是燃料燃烧时每单位质量或体积产生的热能，排除在燃烧过程中产生的水蒸气所含的能量。简单来说，它是考虑到作为水蒸气损失的能量后可用的能量。具有低热值的燃料效率较低，因为它们在消耗相同数量的燃料时提供的可用能量较少。例如，考虑天然气和煤炭之间的比较。天然气通常具有比煤炭更高的热值，这意味着当你燃烧天然气时，你获得的每单位能量比燃烧相同数量的煤炭要多。这种热值的差异对依赖燃料进行能源生产的行业至关重要。使用热值较高的燃料可以降低排放和燃料成本，使其成为更具吸引力的能源生成选项。此外，理解低热值对于环境考虑也至关重要。热值较低的燃料通常在产生单位能量时会释放更多的二氧化碳和其他污染物。因此，转向热值较高的燃料有助于减少温室气体排放并应对气候变化。例如，生物燃料的热值通常低于化石燃料，可能需要更大的数量来产生相同数量的能量，从而导致更大的土地使用和潜在的森林砍伐。此外，燃料的低热值还影响其储存和运输。热量含量较低的燃料需要更大的体积来储存和运输相同数量的能量，从而增加了物流挑战和成本。这在偏远地区尤为相关，因为这些地区获取能源资源的途径有限。理解不同燃料的热值使工程师和规划者能够设计更高效的能源分配和使用系统。总之，低热值的概念在能源科学领域扮演着重要角色。它帮助我们理解各种燃料的效率及其对环境的影响。通过选择热值较高的燃料，我们可以优化能源生产、减少排放，并为未来做出更可持续的选择。随着我们继续探索替代能源来源并努力实现更绿色的地球，理解热值的含义将对指导我们的决策和政策至关重要。