Development of solar PV powered outdoor air purification with air quality monitoring system

Noor Azian, Muhammad Nur Faiq (2024) Development of solar PV powered outdoor air purification with air quality monitoring system. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The "Solar PV Powered Outdoor Air Purification with Air Quality Monitoring System" project addresses concerns over deteriorating air quality and its health effects. Many households own air purifiers, but these devices are often expensive, require external power, and lack integrated air quality monitoring. This project aims to develop an affordable, solar powered air purifier for both indoor and outdoor use, offering real-time air quality monitoring and eliminating dependency on external power. Simulated using Proteus and Arduino IDE, the system demonstrated accurate pollutant detection by the MQ135 sensor and correct LCD functionality. Hardware analysis focused on evaluating the solar panel's power output, battery charging duration, air quality monitoring, and filtration efficiency. The solar panel generated sufficient power with an average daily output of 2.80 watts under sunny conditions, and the battery fully charged in 8 hours, following two typical SLA charging phases. Air filtration testing revealed significant pollutant reductions, with dust levels reduced by 62.5% (mg/m³), methane by 42.9%, CO by 40%, and CO₂ by 33.3%, validating the HEPA + Carbon filter's efficiency. The results confirm the system's capability for sustainable air purification and real-time monitoring, suitable for high-pollution areas or locations with limited power access.

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