Furnace for scientific research with temperature control using Peltier cells and a gas heat transference system: Design and building

Abstract

A novel system was designed and built for scientific research to improve temperature control. The built system allows physical properties measurements ranging from room temperature to 400°C in a controlled atmosphere. It consists of a cylindrical furnace that uses a temperature control system based on Peltier effect cells and a gas heat transfer system that extracts heat from the inner of a heaters furnace and takes it out into the atmosphere of the environment. The experimental results show that the introduction of cooling strategies like Peltier cells and a gas heat transfer system allows for improving temperature control: managing quickly stabilizes the temperature at a fixed value, controls heating and cooling rate, improves response time, and rapidly decreases the temperature from high-temperature value to 25°C. A linear combination of exponential functions modeled the experimental results of heat flow. The built device shows good performance compared to when not using Peltier cells and a gas heat transfer system.