Product Details

This unit is designed to demonstrate the fundamental laws of thermal and light radiation, allowing students to investigate how factors like distance, angle, and surface properties affect radiant heat transfer and illuminance. It provides a practical method for verifying theoretical principles such as the Stefan-Boltzmann Law, Lamberts Cosine Law, and the Inverse Square Law through controlled experiments. The apparatus features two main sources being a thermal radiator with three independently controlled heaters and a light source with an adjustable 60W bulb, both mounted on a scaled aluminum bench for precise distance measurement. A radiation sensor detects thermal energy, while a luxmeter with a photodiode measures light intensity. The light source can be rotated on an angular scale, and various target plates with different surface finishes matte black, grey, and polished are included to study emissivity and absorption. All readings, including temperatures and radiation values, are displayed on an integrated LCD. Its primary application is in mechanical and chemical engineering education for teaching heat transfer concepts. The key benefit is the hands-on validation of radiation laws, enabling students to quantitatively analyze the impact of geometry, orientation, and surface characteristics on radiative exchange, which is essential for applications in HVAC, solar energy, and thermal system design.