Design, Fabrication and Performance Analysis of a Microcontroller-Based Evaporative Cooling System Using Different Cooling Pad Materials

Abstract

This paper focuses on the study and development of a microcontroller-based Evaporative Cooling System. The main objective of the project is to analyze the effectiveness of different cooling pads used in the system. A Node MCU microcontroller is used for monitoring and control purposes. Three different types of cooling pads are designed and tested to compare their cooling performance. Temperature and humidity data are collected using suitable sensors and analyzed to evaluate system performance. The results show that evaporative cooling is an energy-efficient and eco-friendly method for reducing air temperature and can be used as an alternative to conventional cooling systems. Among the three cooling pads tested, the coconut pad showed the highest cooling effectiveness, achieving a maximum temperature reduction of about 4.78°C and an average reduction of approximately 3.8–4.0°C at a natural temperature of around 23.9°C. The honeycomb pad provided moderate cooling performance, with an average temperature reduction of about 2.4–2.6°C at a natural temperature of nearly 23.5°C. In contrast, the jute pad exhibited the lowest cooling effectiveness, producing an average temperature reduction of only 1.8 2.0°C at a natural temperature close to 24.0°C.