calorific equivalent

简明释义

热当量

英英释义

例句

1.The calorific equivalent of coal is higher than that of wood, making it a more efficient fuel source.

煤的热值等效高于木材，使其成为更高效的燃料来源。

2.When analyzing diet plans, nutritionists often refer to the calorific equivalent of various food items.

在分析饮食计划时，营养师常常提到各种食品的热值等效。

3.To calculate the efficiency of a power plant, we need to determine the calorific equivalent of the fuel used.

为了计算发电厂的效率，我们需要确定所用燃料的热值等效。

4.In cooking, understanding the calorific equivalent of ingredients helps in meal planning.

在烹饪中，了解食材的热值等效有助于餐饮计划。

5.The energy content of different fuels can be compared using their calorific equivalent.

不同燃料的能量含量可以通过它们的热值等效进行比较。

作文

The concept of energy is fundamental to our understanding of the physical world, and one important aspect of this is the idea of the calorific equivalent. The calorific equivalent refers to the amount of heat energy that can be obtained from a specific quantity of a substance, usually measured in calories or joules. This term is particularly significant in the fields of nutrition, physics, and environmental science, as it helps us quantify the energy content of various fuels and food items.In nutrition, the calorific equivalent plays a crucial role in determining the energy value of food. Each type of food has a specific calorific equivalent, which indicates how much energy the body can derive from it upon digestion. For example, carbohydrates typically have a calorific equivalent of about 4 calories per gram, while fats provide approximately 9 calories per gram. Understanding these values allows individuals to make informed dietary choices based on their energy needs.Moreover, the calorific equivalent is not only relevant to human nutrition but also to the broader context of energy consumption and production. In the field of renewable energy, for instance, the calorific equivalent of biomass fuels is often compared to fossil fuels to assess their viability as sustainable energy sources. By evaluating the calorific equivalent of different energy resources, researchers can identify which options yield the most energy per unit, thus guiding investment and policy decisions.The significance of the calorific equivalent extends to environmental considerations as well. As societies strive to reduce their carbon footprints and transition to greener energy sources, understanding the calorific equivalent of various fuels can help in assessing their environmental impact. For example, coal has a high calorific equivalent but also produces significant greenhouse gas emissions when burned. In contrast, solar energy may have a lower calorific equivalent in terms of immediate energy output, but it offers a cleaner alternative with minimal environmental harm.In conclusion, the calorific equivalent is a vital concept that bridges the gap between energy production, consumption, and environmental sustainability. Whether in the context of personal health, energy policy, or ecological impact, understanding the calorific equivalent enables us to make better choices for ourselves and the planet. As we continue to face challenges related to energy use and climate change, the importance of grasping such concepts cannot be overstated. By integrating knowledge of the calorific equivalent into our daily lives and decision-making processes, we can contribute to a more sustainable future.

能量的概念是我们理解物理世界的基础，而其中一个重要方面是热值当量的概念。热值当量指的是从特定数量的物质中可以获得的热能量，通常以卡路里或焦耳为单位进行测量。这个术语在营养学、物理学和环境科学等领域尤其重要，因为它帮助我们量化各种燃料和食品的能量含量。在营养学中，热值当量在确定食物的能量价值方面发挥着关键作用。每种类型的食物都有特定的热值当量，指示人体在消化后可以从中获取多少能量。例如，碳水化合物的热值当量大约为每克4卡路里，而脂肪则提供约每克9卡路里。理解这些数值使个人能够根据自己的能量需求做出明智的饮食选择。此外，热值当量不仅与人类营养相关，还与能源消费和生产的更广泛背景相关。在可再生能源领域，例如，生物质燃料的热值当量通常与化石燃料进行比较，以评估其作为可持续能源来源的可行性。通过评估不同能源资源的热值当量，研究人员可以确定哪些选项每单位能量输出最多，从而指导投资和政策决策。热值当量的重要性还扩展到环境考虑方面。随着社会努力减少碳足迹并过渡到更环保的能源来源，了解各种燃料的热值当量有助于评估其环境影响。例如，煤炭具有高热值当量，但在燃烧时也会产生显著的温室气体排放。相比之下，太阳能的热值当量在即时能量输出方面可能较低，但它提供了一种清洁的替代方案，对环境造成的伤害最小。总之，热值当量是一个至关重要的概念，它连接了能源生产、消费和环境可持续性。在个人健康、能源政策或生态影响的背景下，理解热值当量使我们能够为自己和地球做出更好的选择。随着我们继续面临与能源使用和气候变化相关的挑战，掌握这些概念的重要性不容小觑。通过将对热值当量的知识融入我们的日常生活和决策过程中，我们可以为更可持续的未来做出贡献。