Introduction to Thermal Radiation Heat Transfer

This course covers the comprehensive understanding of Thermal Radiation Heat Transfer. It starts with the basic definition, applications, and the science behind thermal radiation, differentiating it from nuclear radiation. The course further explores its role in various fields such as furnace design, satellite thermal control systems, insulation design, climate prediction, and solar thermal collector design. It also explains the measurement of radiation in terms of wavelength, frequency, and wave number. The course delves into the concept of emissive power, intensity, and the concept of solid angle in radiation. It concludes with an explanation of the radiative properties of surfaces and the concept of blackbody in radiation heat transfer. The course also covers Planck's blackbody radiation, its formula for emissive power, and the principles of statistical and quantum mechanics used in its derivation. It further discusses Einstein's approach to the subject, which includes the idea of induced emission. The course also covers the in-depth understanding of Kirchhoff's law in radiation heat transfer and the concept of emissivity of metals and its variation with temperature and wavelength.