low heat value

简明释义

低发热值

英英释义

例句

1.The low heat value 低热值 of this coal means it produces less energy compared to higher-grade options.

这种煤的低热值 低热值意味着它产生的能量比高等级的选项少。

2.We measured the low heat value 低热值 of the waste material to determine its viability as a fuel source.

我们测量了废料的低热值 低热值以确定其作为燃料来源的可行性。

3.When selecting fuels for the furnace, we need to avoid those with a low heat value 低热值 to ensure optimal performance.

在选择炉用燃料时，我们需要避免那些具有低热值 低热值的燃料，以确保最佳性能。

4.Using materials with a low heat value 低热值 can lead to increased fuel consumption and costs.

使用具有低热值 低热值的材料可能会导致燃料消耗和成本增加。

5.The biomass used in this project has a low heat value 低热值, making it less efficient for energy production.

该项目中使用的生物质具有低热值 低热值，使其在能源生产中效率较低。

作文

Understanding the concept of low heat value is essential in the fields of energy production and environmental science. The term refers to the amount of energy released when a fuel is burned, but it specifically considers only the usable energy that can be harnessed for work. Fuels with a low heat value typically produce less energy compared to those with a high heat value, which means they are less efficient for combustion processes.For instance, when we look at various types of fuels, such as coal, natural gas, and biomass, we find that their heat values vary significantly. Coal, particularly bituminous coal, has a high heat value, making it a preferred choice for electricity generation in many regions. In contrast, some forms of biomass, while renewable, often have a low heat value, which can limit their effectiveness as a primary energy source.The implications of using fuels with a low heat value extend beyond just energy output; they also affect emissions and environmental impact. When fuels that do not combust efficiently are used, they can lead to higher levels of pollutants being released into the atmosphere. This is particularly concerning in the context of climate change and air quality management. Hence, understanding the low heat value of a fuel helps in selecting the right fuel for specific applications, aiming for both efficiency and reduced environmental impact.In practical applications, engineers and scientists often conduct experiments to determine the heat values of various fuels. Knowing whether a fuel has a low heat value or a high one aids in designing more efficient engines and power plants. For example, if a certain biomass fuel is found to have a low heat value, engineers might consider blending it with another fuel that has a higher heat value to optimize the overall performance of the combustion system.Moreover, the low heat value of a fuel can influence its economic viability. Fuels that generate less energy per unit may require larger quantities to meet the same energy demands, leading to increased costs. This economic aspect is crucial for industries reliant on energy-intensive processes, prompting them to seek out fuels with higher heat values to maintain profitability.In summary, the concept of low heat value is vital for understanding fuel efficiency, environmental impact, and economic considerations in energy production. As we continue to explore sustainable energy solutions, a thorough grasp of heat values will guide us toward making informed decisions that balance energy needs with ecological responsibilities. By prioritizing fuels with higher heat values, we can enhance energy efficiency and contribute positively to our planet's future.

理解低热值的概念在能源生产和环境科学领域至关重要。这个术语指的是燃料燃烧时释放的能量，但它特别考虑到可以用于工作的可用能量。具有低热值的燃料通常产生的能量少于高热值的燃料，这意味着它们在燃烧过程中效率较低。例如，当我们观察各种类型的燃料，如煤、天然气和生物质时，我们发现它们的热值差异显著。煤，特别是烟煤，具有高热值，使其成为许多地区发电的首选。而某些形式的生物质虽然可再生，但往往具有低热值，这限制了它们作为主要能源来源的有效性。使用具有低热值的燃料的影响不仅限于能量输出；它们还会影响排放和环境影响。当燃烧效率不高的燃料被使用时，可能导致更多污染物被释放到大气中。这在气候变化和空气质量管理的背景下尤其令人担忧。因此，了解一种燃料的低热值有助于选择适合特定应用的燃料，以实现效率和减少环境影响。在实际应用中，工程师和科学家经常进行实验以确定各种燃料的热值。知道一种燃料是否具有低热值或高热值有助于设计更高效的发动机和发电厂。例如，如果某种生物质燃料被发现具有低热值，工程师可能会考虑将其与另一种具有较高热值的燃料混合，以优化整体燃烧系统的性能。此外，燃料的低热值也会影响其经济可行性。每单位产生的能量较少的燃料可能需要更大的数量来满足相同的能源需求，从而导致成本增加。这个经济方面对于依赖能源密集型过程的行业至关重要，促使它们寻找热值更高的燃料以维持盈利能力。总之，低热值的概念对于理解能源生产中的燃料效率、环境影响和经济考虑至关重要。随着我们继续探索可持续能源解决方案，全面掌握热值将指导我们做出平衡能源需求与生态责任的明智决策。通过优先考虑热值更高的燃料，我们可以提高能源效率，为我们星球的未来做出积极贡献。