20600723033 MD ASLAM ( PC- ME 501 ).pptx

Heat transfer

1. Understanding Heat Transfer: Exploring Conduction, Convection, and Radiation

2. Introduction to Heat Transfer In this presentation, we will explore the fundamental concepts of . Understanding the three primary modes: , , and is essential for various applications in science and engineering. Let's dive into how these processes work and their significance in our daily lives.

3. What is Conduction? is the process of heat transfer through materials without any movement of the material itself. It occurs when collide, transferring energy from to areas. Common examples include a metal spoon heating in a pot of hot water or the warmth felt when touching a heated surface.

4. Understanding Convection involves the transfer of heat through the movement of fluids (liquids and gases). As a fluid is heated, it becomes and rises, while cooler, denser fluid sinks, creating a . This process is vital in heating systems and natural phenomena like ocean currents.

5. It is the process in which heat is transferred from one body to another body without involving the molecules of the medium. Radiation heat transfer does not depend on the medium. For example: In a microwave, the substances are heated directly without any heating medium. Radiation of H eat Transfer

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