Fundamentals Of Thermal Radiation

Second Module of Heat Transfer

What you'll learn
Thermal Radiation
Irradiation
Emissive Power
Radiosity
Concept of Black Body
Various Laws in Radiation
Shape Factor
Radiation Shield
Requirements
Basics of Engineering Mathematics
Description
Thermal Radiation process is considered as a dominant mode of heat transfer process which is involved in many systems which include high temperature and large scale such as combustors and furnaces. Electromagnetic wave can travel with the speed of light under vacuum condition. When Electromagnetic wave fall on their surface, it release energy content and hence heat transfer take place due to electromagnetic wave. This phenomenon is known as Radiation Heat Transfer. At low temperature radiation effect are less while the radiation effect are significant at higher temperature with gas medium. Radiation don't require any medium for their propagation. In fact the presence of medium decreases the effect of radiation.This MOOC has been carefully developed for the students who are interested in heat transfer process. It should be noted that this course is the second Module of the heat transfer process. The course has following sections:Section 1: IntroductionSection 2: Irradiation, Emissive Power and RadiositySection 3: Concept of Black BodySection 4: Calculation of Shape FactorSection 5: Resistance and Radiation ShieldThe course highlights the given topics covered in the above mentioned section in a simplified manner. The learners should have the basic knowledge in engineering mathematics and basics of heat transfer for enrolling in this course.Hope the learners will enjoy the course.Happy Learning!!

Overview

Section 1: Introduction

Lecture 1 What is Thermal Radiation?

Lecture 2 Important points regarding Radiation

Section 2: Irradiation, Emissive Power and Radiosity

Lecture 3 Irradiation

Lecture 4 Emissive Power and Radiosity

Section 3: Concept of Black Body

Lecture 5 What is a Black Body?

Lecture 6 What is Gray Body?

Lecture 7 Important Radiation Laws

Lecture 8 Conclusion from Planck's Law

Section 4: Calculation of Shape Factor

Lecture 9 What is Shape Factor?

Lecture 10 Numerical Problems

Section 5: Resistances and Radiation Shield

Lecture 11 Surface Resistance and Space Resistance

Lecture 12 Net Heat Exchange between two surfaces

Lecture 13 Radiation Shield

Beginner in Heat Transfer