coefficient of mass transfer

简明释义

质量传递系数

英英释义

例句

1.The coefficient of mass transfer 质量传递系数 is crucial in designing chemical reactors.

在设计化学反应器时，质量传递系数 coefficient of mass transfer 是至关重要的。

2.We need to calculate the coefficient of mass transfer 质量传递系数 to optimize the extraction process.

我们需要计算 质量传递系数 coefficient of mass transfer 以优化提取过程。

3.To improve the efficiency of the system, we must enhance the coefficient of mass transfer 质量传递系数.

为了提高系统的效率，我们必须增强 质量传递系数 coefficient of mass transfer。

4.The coefficient of mass transfer 质量传递系数 can vary depending on temperature and pressure.

质量传递系数 coefficient of mass transfer 会因温度和压力而有所不同。

5.In fluid dynamics, the coefficient of mass transfer 质量传递系数 affects the rate of diffusion.

在流体动力学中，质量传递系数 coefficient of mass transfer 影响扩散速率。

作文

The concept of coefficient of mass transfer plays a crucial role in various fields of science and engineering, particularly in chemical engineering, environmental science, and materials science. This coefficient quantifies the efficiency of mass transfer between two phases, such as liquid and gas, or solid and liquid. Understanding this concept is essential for designing effective separation processes, such as distillation, absorption, and extraction, which are widely used in industries ranging from petrochemicals to pharmaceuticals.To grasp the significance of the coefficient of mass transfer, one must first understand the basic principles of mass transfer. Mass transfer refers to the movement of mass from one location to another, driven by concentration gradients. For instance, when a sugar cube is placed in water, the sugar molecules move from an area of high concentration (the sugar cube) to an area of low concentration (the surrounding water), resulting in a sweetened solution. The rate at which this transfer occurs is influenced by several factors, including temperature, agitation, and the properties of the substances involved.The coefficient of mass transfer is a parameter that reflects how quickly this transfer can occur under specific conditions. It is often expressed in units of velocity, such as meters per second, and is determined experimentally for different systems. A higher coefficient indicates a more efficient mass transfer process, which is desirable in many industrial applications.In chemical reactors, for example, the coefficient of mass transfer is critical for ensuring that reactants are adequately mixed and that products are efficiently removed. In environmental science, understanding this coefficient helps in predicting how pollutants disperse in air or water, which is vital for designing effective remediation strategies. Moreover, in the field of materials science, the coefficient of mass transfer can influence the diffusion of materials in processes such as coating and plating, impacting the quality and performance of the final product.Several methods exist for measuring the coefficient of mass transfer. One common approach involves using a laboratory setup where the mass transfer process can be controlled and monitored. By varying parameters such as flow rates and concentrations, researchers can derive the coefficient for a given system. Computational fluid dynamics (CFD) simulations are also increasingly used to predict mass transfer coefficients, allowing for faster and more cost-effective analysis in complex systems.In conclusion, the coefficient of mass transfer is a fundamental concept that underpins many processes in science and engineering. Its importance cannot be overstated, as it directly affects the efficiency and effectiveness of various industrial operations. As industries continue to evolve and seek more sustainable practices, understanding and optimizing the coefficient of mass transfer will remain a key focus for researchers and engineers alike. By mastering this concept, professionals can contribute to advancements in technology and environmental stewardship, ultimately benefiting society as a whole.

“质量传递系数”这一概念在化学工程、环境科学和材料科学等多个科学和工程领域中发挥着至关重要的作用。该系数量化了两相之间（如液体与气体，或固体与液体）质量传递的效率。理解这一概念对于设计有效的分离过程（如蒸馏、吸收和萃取）至关重要，这些过程在从石油化工到制药等多个行业中广泛应用。要掌握“质量传递系数”的重要性，首先必须了解质量传递的基本原理。质量传递是指由于浓度梯度而导致的质量从一个位置移动到另一个位置的过程。例如，当一块糖放入水中时，糖分子会从高浓度区域（糖块）向低浓度区域（周围的水）移动，从而形成甜味溶液。这一转移发生的速率受到多种因素的影响，包括温度、搅拌和所涉及物质的特性。“质量传递系数”是一个反映在特定条件下这种转移能够多快发生的参数。它通常以速度单位（如米每秒）表示，并且通过实验确定不同系统的系数。较高的系数表明更有效的质量传递过程，这在许多工业应用中都是可取的。例如，在化学反应器中，“质量传递系数”对于确保反应物充分混合和产品有效去除至关重要。在环境科学中，理解这一系数有助于预测污染物在空气或水中的扩散，这对设计有效的修复策略至关重要。此外，在材料科学领域，“质量传递系数”会影响涂层和镀层等过程中的材料扩散，从而影响最终产品的质量和性能。测量“质量传递系数”的方法有几种。一种常见的方法是使用实验室设备，在其中可以控制和监测质量传递过程。通过改变流速和浓度等参数，研究人员可以推导出给定系统的系数。计算流体动力学（CFD）模拟也越来越多地用于预测质量传递系数，从而在复杂系统中实现更快速和更经济的分析。总之，“质量传递系数”是支撑科学和工程中许多过程的基本概念。其重要性不容小觑，因为它直接影响各种工业操作的效率和有效性。随着行业的不断发展并寻求更可持续的实践，理解和优化“质量传递系数”将继续成为研究人员和工程师的重点。通过掌握这一概念，专业人士可以为技术进步和环境保护做出贡献，最终造福整个社会。