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### Advanced Heat Transfer: Thermal Radiation

Thermal Radiation, Blackbody, Kirchhoff, Plank and Wien's displacement Laws, View Factor, Radiation Exchange and more

### What you'll learn?

- Apply Kirchhoff’s law to determine the absorptivity of a surface when its emissivity is known
- Quantify the effect of radiation shields on the reduction of radiation heat transfer between two surfaces
- Develop a clear understanding of the properties emissivity, absorptivity, relflectivity, and transmissivity on spectral, directional, and total basis
- Determine radiation heat transfer between diffuse and gray surfaces in an enclosure using the concept of radiosity
- Calculate the fraction of radiation emitted in a specified wavelength band using the blackbody radiation functions
- Develop view factor relations, and calculate the unknown view factors in an enclosure by using these relations
- Calculate radiation heat transfer between black surfaces
- Classify electromagnetic radiation, and identify thermal radiation
- Define view factor, and understand its importance in radiation heat transfer calculations
- Understand the idealized blackbody, and calculate the total and spectral blackbody emissive power
- Understand the concept of radiation intensity, and define spectral directional quantities using intensity

### Requirements and What you should know?

- Engineering Thermodynamics Course
- Fundamentals of Heat Transfer Course

### Who is this course for?

- Engineering Students

### What is this course about?

We start this course with a discussion of ** electromagnetic waves **and the

**, with particular emphasis on**

*electromagnetic spectrum***. Then we introduce the idealized**

*thermal radiation***, together with the**

*blackbody, blackbody radiation, and blackbody radiation function***.**

*Stefan–Boltzmann law, Planck’s law, and Wien’s displacement law*Radiation is emitted by every point on a plane surface in all directions into the hemisphere above the surface. The quantity that describes the magnitude of radiation emitted or incident in a specified direction in space is the ** radiation intensity**. Various radiation fluxes such as

**are expressed in terms of intensity. This is followed by a discussion of radiative properties of materials such as**

*emissive power, irradiation, and radiosity***and their dependence on wavelength, direction, and temperature. The**

*emissivity, absorptivity, reflectivity, and transmissivity***is presented as an example of the consequences of the wavelength dependence of radiation properties.**

*greenhouse effect*We then discuss ** view factors** and the rules associated with them. View factor expressions and charts for some common configurations are given, and the

**is presented. We then discuss radiation heat transfer, first between black surfaces and then between nonblack surfaces using the**

*crossed-strings method***. We continue with**

*radiation network approach***and discuss the its radiation effects.**

*radiation shields*To get a course with a coupon code given by the instructor, you can click or touch the following button.

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