mass balance

简明释义

物料平衡

英英释义

例句

1.The engineer performed a mass balance to ensure that the inputs and outputs of the chemical process were equal.

工程师进行了物质平衡以确保化学过程的输入和输出相等。

2.A detailed mass balance report was required for the new waste treatment facility.

新的废物处理设施需要详细的物质平衡报告。

3.The company uses mass balance calculations to optimize their production efficiency.

该公司使用物质平衡计算来优化生产效率。

4.To assess the sustainability of a process, a mass balance is essential.

为了评估一个过程的可持续性，物质平衡是必不可少的。

5.In environmental studies, a mass balance helps track pollutants in a watershed.

在环境研究中，物质平衡有助于追踪流域中的污染物。

作文

The concept of mass balance is fundamental in various scientific fields, particularly in chemistry and environmental science. It refers to the principle that the mass of a system must remain constant over time, as long as the system is closed and no mass enters or leaves. This principle can be applied to a wide range of scenarios, from chemical reactions to ecological studies. Understanding mass balance is essential for accurately assessing the flow of materials and energy within a system.In chemistry, mass balance is used to analyze reactions. For instance, when a chemical reaction occurs, the total mass of the reactants must equal the total mass of the products. This can be expressed mathematically as:Mass of Reactants = Mass of ProductsThis equation illustrates that during a chemical reaction, atoms are neither created nor destroyed; they are simply rearranged to form new substances. By applying the mass balance principle, chemists can predict the quantities of reactants needed and the amounts of products produced. This is crucial in industries such as pharmaceuticals, where precise measurements are necessary to ensure the efficacy and safety of drugs.In environmental science, mass balance plays a critical role in understanding pollutant dynamics. For example, when studying a river system, scientists may apply the mass balance approach to determine how much of a certain pollutant is entering, leaving, or accumulating in the river. This involves measuring inputs (such as runoff from agriculture) and outputs (like evaporation or downstream transport) to establish a comprehensive view of the pollutant's behavior in the environment.Moreover, mass balance is not limited to just physical systems; it can also be applied to biological systems. In ecology, researchers often use this principle to study nutrient cycling within ecosystems. For instance, they may track the flow of carbon through photosynthesis and respiration processes to assess how much carbon is being stored in plants versus how much is released back into the atmosphere. This understanding is vital for addressing climate change and developing strategies for carbon sequestration.Another important application of mass balance is in engineering, particularly in chemical engineering processes. Engineers use this principle to design reactors and separation processes, ensuring that materials are efficiently utilized and waste is minimized. For instance, in a distillation column, a mass balance is conducted to optimize the separation of components based on their boiling points, which enhances the overall efficiency of the process.In conclusion, the principle of mass balance is an invaluable tool across various disciplines. Its applications range from chemical reactions to environmental assessments and engineering designs. By understanding and applying mass balance, scientists and engineers can make informed decisions that lead to improved efficiency, sustainability, and safety in their respective fields. As we continue to face challenges such as resource depletion and environmental degradation, mastering the concept of mass balance will be increasingly important in developing solutions that benefit both society and the planet.

“质量平衡”这一概念在多个科学领域中具有基础性的重要性，尤其是在化学和环境科学中。它指的是一个系统的质量必须保持恒定，前提是该系统是封闭的，没有质量进出。这个原理可以应用于多种场景，从化学反应到生态研究。理解“质量平衡”对于准确评估材料和能量在一个系统中的流动至关重要。在化学中，“质量平衡”用于分析反应。例如，当发生化学反应时，反应物的总质量必须等于产物的总质量。这可以用数学公式表示为：反应物的质量 = 产物的质量这个方程说明，在化学反应过程中，原子既不会被创造也不会被毁灭；它们只是重新排列形成新的物质。通过应用“质量平衡”原则，化学家可以预测所需反应物的数量和产生的产品的数量。这在制药等行业中至关重要，因为精确的测量对于确保药物的有效性和安全性是必要的。在环境科学中，“质量平衡”在理解污染物动态方面发挥着关键作用。例如，在研究河流系统时，科学家可能会应用“质量平衡”方法来确定某种污染物在河流中的进入、离开或积累量。这涉及到测量输入（如农业径流）和输出（如蒸发或下游运输），以建立对污染物在环境中行为的全面了解。此外，“质量平衡”不仅限于物理系统；它也可以应用于生物系统。在生态学中，研究人员经常使用这一原则来研究生态系统内的营养循环。例如，他们可能会跟踪碳通过光合作用和呼吸过程的流动，以评估植物中存储的碳量与释放回大气中的碳量。这种理解对于应对气候变化和制定碳汇策略至关重要。“质量平衡”的另一个重要应用是在工程领域，特别是在化工过程中的应用。工程师利用这一原则设计反应器和分离过程，确保材料得到高效利用并最小化废物。例如，在蒸馏塔中，会进行“质量平衡”计算，以优化基于沸点的组分分离，从而提高整体过程的效率。总之，“质量平衡”原则是各学科中不可或缺的工具。它的应用范围从化学反应到环境评估，再到工程设计。通过理解和应用“质量平衡”，科学家和工程师能够做出明智的决策，从而提高其各自领域的效率、可持续性和安全性。随着我们继续面临资源枯竭和环境退化等挑战，掌握“质量平衡”概念在开发有利于社会和地球的解决方案中将变得越来越重要。