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所在平台: Udemy |
课程主页: https://www.udemy.com/course/fundamentals-of-heat-transfer-part-1/
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《热传递基础（第一部分）》是Coursera上的一门综合性课程，专注于热量传递和热力学的基础概念。本课程将深入探讨热能传递的三种基本模式： **传导 (conduction)**、**对流 (convection)** 和 **辐射 (radiation)**。 课程目标是帮助学习者建立对热传递模式的扎实理解，并掌握计算热量传递速率的各种关系。课程从解释“什么是热传递？”和“能量如何通过热量传递？”这两个核心问题入手，为后续深入学习奠定基础。 课程内容包括： * **热方程 (heat equation)**：基于傅里叶定律 (Fourier's law) 和能量守恒要求，用于求解稳态 (steady-state) 和瞬态 (transient) 条件下的温度分布。 * **热力学电路 (thermal circuits)**：用于模拟平面壁 (plane walls)、圆柱体 (cylinders)、球体 (spheres) 以及扩展表面（翅片，fins）等常见几何形状中的稳态热流。 * **集总参数法 (lumped capacitance method)**：适用于使用单一温度即可表征介质响应边界变化时间特性的情况，该方法将用于求解瞬态传导问题。 完成本课程后，学习者将全面掌握热传递的各种模式、支配其原理以及如何在热系统工程中应用这些知识解决问题。这门课程非常适合希望深化热传递和热力学知识的学习者。
Welcome to our comprehensive course on Heat Transfer and Thermodynamics! In this course, we delve into the fundamental concepts and principles that govern the transfer of heat energy, including conduction, convection, and radiation.Our objective is to equip you with a solid foundation in the modes of heat transfer and the relations used to calculate heat transfer rates. We begin by answering the crucial questions of What is heat transfer? and How is energy transferred by heat? These questions set the stage for a deep dive into the underlying principles of heat transfer processes.We explore how the heat equation, which is based on Fourier's law and the conservation of energy requirement, can be used to obtain the temperature distribution within a medium for both steady-state and transient conditions. Furthermore, we demonstrate how thermal circuits can be employed to model steady-state heat flow in common geometries such as plane walls, cylinders, spheres, and extended surfaces (fins).In addition, we discuss the lumped capacitance method, which is appropriate when a single temperature can be used to characterize the time response of the medium to the boundary change, and we use it to solve transient conduction problems.By the end of this course, you will have a comprehensive understanding of the modes of heat transfer, the principles that govern them, and how they can be applied to solve problems in thermal systems engineering.If you are interested in expanding your knowledge of Heat Transfer and Thermodynamics, this course is perfect for you. Join us today and take the first step towards becoming an expert in the field.
