TD1011V Natural Convection and Heat Radiation Experimental Device
Natural convection and thermal radiation experimental apparatus
This device experiments on how heat is transmitted by large changes in pressure and clarifies the differences between radiation and natural convection. It consists of a steel pressure vessel (cylindrical), a control device, a vacuum pump, and a regulator for compressed air. A small heater is suspended in the center of the pressure vessel, and thermocouples for temperature measurement are installed on the heater surface and the vessel wall. The temperatures of the heater and the vessel, as well as the pressure, are displayed digitally. Additionally, the heater surface and the inside of the vessel are blackened to act as ideal thermal radiators. In the experiment, compressed air can be filled up to a maximum of 125 kPa (gauge pressure), and a vacuum of approximately -100 kPa (gauge pressure) can be achieved. Creating a vacuum state reduces heat loss due to convection, allowing for more accurate measurements of heat transfer. The emissivity of the surface is measured, the Stefan-Boltzmann law is demonstrated, and the understanding of dimensionless characteristics using Nusselt number, Grashof number, Prandtl number, and Knudsen number is developed. By using the accompanying data acquisition system (VDAS), various data can be collected and analyzed in real-time on a PC (sold separately).
- Company：メガケム
- Price：Other
