Thermostat-Controlled PWM System for Pellet Flow and Water Pump Regulation in Biomass Heating
摘要
The aim of this project is to develop a thermostat-controlled feedback system which improves the efficiency and safety of a biomass heating system at Al Akhawayn University. The system uses both real-time temperature monitoring and a Proportional-Integral-Derivative (PID) algorithm for a dynamic regulation of the water pump and adjustment of the stepper motor for pellet feeding based on the temperature readings. The system also offers continuous feedback using a liquid crystal display (LCD) which exhibits real-time temperature data for user monitoring. Moreover, it utilizes pulse-width modulation (PWM) for accurate motor control while including safety mechanisms such as an emergency shutdown feature that stops both motors, activates warning LEDs, and finally displays an alert message on the LCD screen. The system’s simulation was done using Proteus to ensure its effectiveness and to illustrate significant changes in energy savings and a reduction in pellet consumption as we maintain a steady combustion. Furthermore, fuel usage optimization and the improvement of energy efficiency have contributed to a more sustainable and cost-effective heating solution.