low heat value

简明释义

低热值

英英释义

例句

1.When choosing fuels for power generation, one must consider the low heat value 低热值 to ensure adequate output.

在选择发电燃料时，必须考虑低热值 低热值以确保足够的输出。

2.The biomass fuel we are using has a low heat value 低热值, which means it produces less energy when burned.

我们使用的生物质燃料具有低热值 低热值，这意味着燃烧时产生的能量较少。

3.In the energy assessment, we found that the low heat value 低热值 of the material limits its efficiency.

在能源评估中，我们发现材料的低热值 低热值限制了其效率。

4.The low heat value 低热值 of natural gas makes it a cleaner option compared to coal.

天然气的低热值 低热值使其成为比煤炭更清洁的选择。

5.Due to its low heat value 低热值, this type of waste is not suitable for high-efficiency boilers.

由于这种废物的低热值 低热值，不适合高效锅炉。

作文

In the field of energy production and consumption, understanding the concept of low heat value is crucial for optimizing fuel efficiency and reducing environmental impact. The term low heat value refers to the amount of heat energy released during the combustion of a fuel when water vapor produced in the reaction remains in the gaseous state. This is in contrast to the higher heating value, which accounts for the heat released when water vapor condenses back into liquid form. Therefore, fuels with a low heat value are less efficient in generating usable energy compared to those with a high heat value.One of the most common examples of fuels with a low heat value is biomass. While biomass can be a renewable energy source, its combustion typically results in a lower heat output compared to fossil fuels like coal or natural gas. This is primarily due to the moisture content present in biomass materials, which consumes a portion of the energy during combustion. As a result, when evaluating the viability of biomass as an energy source, it is essential to consider its low heat value to ensure that it can meet energy demands effectively.In industrial applications, the low heat value of fuels can significantly impact the design and operation of combustion systems. For instance, power plants that utilize fuels with a low heat value may require larger combustion chambers or additional processing equipment to achieve the desired energy output. This can lead to increased operational costs and may necessitate the use of supplementary fuels with higher heating values to balance the energy output.Moreover, the low heat value of certain fuels poses challenges for emissions control. Fuels with lower energy content often lead to incomplete combustion, which can result in higher emissions of pollutants such as carbon monoxide and particulate matter. Therefore, understanding the low heat value of a fuel is not only important for energy generation but also for adhering to environmental regulations and standards.The implications of low heat value extend beyond industrial applications; they also influence consumer choices in residential heating. Homeowners looking for efficient heating solutions must consider the low heat value of various fuels available to them. For example, while wood pellets may be marketed as a green alternative, their low heat value compared to natural gas means that homeowners may need to use more pellets to achieve the same level of warmth, potentially increasing costs and labor.In conclusion, the concept of low heat value is integral to understanding the efficiency and environmental impact of various fuels. Whether in industrial settings, residential heating, or renewable energy discussions, recognizing the characteristics associated with low heat value fuels can help stakeholders make informed decisions. By prioritizing fuels with higher heating values or optimizing the use of low heat value fuels through better technology and practices, we can improve energy efficiency and work towards a more sustainable future.

在能源生产和消费领域，理解低热值的概念对于优化燃料效率和减少环境影响至关重要。术语低热值指的是在燃料燃烧过程中释放的热能量，当反应中产生的水蒸气保持在气态时。与之相对的是高热值，它考虑了水蒸气凝结回液态时释放的热量。因此，具有低热值的燃料在产生可用能量方面的效率低于那些具有高热值的燃料。生物质是具有低热值的燃料的一个常见例子。虽然生物质可以作为可再生能源，但其燃烧通常导致的热量输出低于煤或天然气等化石燃料。这主要是由于生物质材料中存在的水分，在燃烧过程中消耗了一部分能量。因此，在评估生物质作为能源来源的可行性时，考虑其低热值以确保其能够有效满足能源需求是至关重要的。在工业应用中，燃料的低热值可能会显著影响燃烧系统的设计和操作。例如，利用低热值燃料的发电厂可能需要更大的燃烧室或额外的处理设备，以实现所需的能量输出。这可能导致运营成本增加，并可能需要使用具有更高热值的辅助燃料来平衡能量输出。此外，某些燃料的低热值给排放控制带来了挑战。低能量含量的燃料往往导致不完全燃烧，这可能导致一氧化碳和颗粒物等污染物的排放增加。因此，理解燃料的低热值不仅对能源生成重要，而且对于遵守环境法规和标准也至关重要。低热值的影响不仅限于工业应用；它们还影响消费者在住宅供暖中的选择。寻找高效供暖解决方案的房主必须考虑可用燃料的低热值。例如，虽然木颗粒可能被宣传为绿色替代品，但与天然气相比，其低热值意味着房主可能需要使用更多的颗粒才能达到相同的温暖水平，这可能增加成本和劳动。总之，低热值的概念对于理解各种燃料的效率和环境影响至关重要。无论是在工业环境、住宅供暖还是可再生能源讨论中，认识到与低热值燃料相关的特征可以帮助利益相关者做出明智的决策。通过优先考虑具有更高热值的燃料或通过更好的技术和实践优化低热值燃料的使用，我们可以提高能源效率，并朝着更可持续的未来努力。