mass transfer

简明释义

质量传递

英英释义

例句

1.In chemical engineering, understanding mass transfer（质量传递） is crucial for designing reactors.

在化工工程中，理解mass transfer（质量传递）对反应器的设计至关重要。

2.In environmental science, mass transfer（质量传递） plays a key role in pollutant dispersion.

在环境科学中，mass transfer（质量传递）在污染物扩散中起着关键作用。

3.In food processing, mass transfer（质量传递） is essential for flavor extraction.

在食品加工中，mass transfer（质量传递）对风味提取至关重要。

4.The mass transfer（质量传递） rate can be influenced by temperature and pressure conditions.

温度和压力条件会影响mass transfer（质量传递）速率。

5.The efficiency of a distillation column depends on the mass transfer（质量传递） between the vapor and liquid phases.

精馏塔的效率取决于蒸汽和液体相之间的mass transfer（质量传递）。

作文

Mass transfer is a fundamental concept in various scientific and engineering disciplines, including chemistry, physics, and environmental science. It refers to the movement of mass from one location to another, which can occur in different forms such as diffusion, convection, or migration. Understanding mass transfer (质量传递) is crucial for designing processes in industries like chemical manufacturing, food processing, and wastewater treatment.In chemical engineering, mass transfer (质量传递) plays a vital role in the design of reactors, separation processes, and absorption systems. For instance, during the production of chemicals, it is essential to ensure that reactants are effectively mixed and that the products are efficiently separated from unreacted materials. This requires a deep understanding of how molecules move within a system, which is governed by principles of mass transfer (质量传递).One of the most common mechanisms of mass transfer (质量传递) is diffusion, where molecules spread from an area of high concentration to an area of low concentration. This process can be observed in everyday life, such as when a drop of food coloring disperses in water. The rate of diffusion depends on factors like temperature, concentration gradient, and the nature of the substances involved. In industrial applications, enhancing diffusion rates can lead to more efficient processes, reducing energy consumption and maximizing output.Another important aspect of mass transfer (质量传递) is convection, which involves the bulk movement of fluids. In many cases, mass transfer (质量传递) occurs simultaneously through both diffusion and convection. For example, in a heat exchanger, hot fluid transfers heat to cold fluid, while also allowing the transfer of mass between the two fluids. Engineers must carefully design these systems to optimize mass transfer (质量传递) rates, ensuring that they operate efficiently under varying conditions.In environmental science, mass transfer (质量传递) is critical for understanding pollutant behavior in air, water, and soil. The movement of contaminants can significantly impact ecosystems and human health. By studying mass transfer (质量传递) processes, scientists can develop strategies to mitigate pollution and protect natural resources. For instance, knowing how pollutants disperse in water bodies can help in designing effective remediation techniques to clean up contaminated sites.Moreover, the concept of mass transfer (质量传递) is also applied in food science, where it influences processes such as drying, freezing, and cooking. Understanding the mass transfer (质量传递) of moisture in food products is essential for maintaining quality and safety. For example, during the drying process, moisture must be removed efficiently to prevent spoilage and preserve flavor. By optimizing mass transfer (质量传递) conditions, food manufacturers can enhance product quality and shelf life.In conclusion, mass transfer (质量传递) is a critical phenomenon that affects a wide range of processes across various fields. Its principles govern the efficiency and effectiveness of chemical reactions, environmental protection efforts, and food preservation techniques. A thorough understanding of mass transfer (质量传递) allows scientists and engineers to innovate and improve processes, ultimately leading to better products and a healthier environment. As research continues to advance, the importance of mastering mass transfer (质量传递) will only grow, highlighting its relevance in addressing global challenges.

质量传递是化学、物理和环境科学等多个科学和工程学科中的一个基本概念。它指的是质量从一个位置移动到另一个位置的过程，这可以通过扩散、对流或迁移等不同形式发生。理解质量传递在化学制造、食品加工和废水处理等行业的工艺设计中至关重要。在化学工程中，质量传递在反应器、分离过程和吸收系统的设计中起着重要作用。例如，在化学品生产过程中，确保反应物有效混合以及产品高效与未反应材料分离是至关重要的。这需要深入理解分子在系统内的运动，而这又受质量传递原理的支配。质量传递中最常见的机制之一是扩散，即分子从高浓度区域扩散到低浓度区域。这一过程可以在日常生活中观察到，例如当一滴食用色素在水中扩散时。扩散速率取决于温度、浓度梯度和所涉及物质的性质等因素。在工业应用中，提高扩散速率可以导致更高效的过程，从而减少能耗并最大化产出。质量传递的另一个重要方面是对流，它涉及流体的整体运动。在许多情况下，质量传递同时通过扩散和对流发生。例如，在热交换器中，热流体将热量传递给冷流体，同时也允许两种流体之间的质量转移。工程师必须仔细设计这些系统，以优化质量传递速率，确保它们在不同条件下高效运行。在环境科学中，质量传递对于理解空气、水和土壤中的污染物行为至关重要。污染物的移动可能对生态系统和人类健康产生重大影响。通过研究质量传递过程，科学家可以制定减轻污染和保护自然资源的策略。例如，了解污染物在水体中的扩散方式可以帮助设计有效的修复技术，以清理受污染的场地。此外，质量传递的概念也应用于食品科学，它影响干燥、冷冻和烹饪等过程。理解食品产品中水分的质量传递对于保持质量和安全至关重要。例如，在干燥过程中，必须有效去除水分以防止变质并保持风味。通过优化质量传递条件，食品制造商可以提高产品质量和保质期。总之，质量传递是影响各个领域广泛过程的关键现象。其原理支配着化学反应的效率和有效性、环境保护工作和食品保存技术。深入理解质量传递使科学家和工程师能够创新和改进工艺，最终带来更好的产品和更健康的环境。随着研究的不断推进，掌握质量传递的重要性只会增加，突显其在应对全球挑战中的相关性。