Performance evaluation of a Compressed-Air-Powered Bike: A sustainable solution for urban transportation

The increasing demand for sustainable and emission-free transportation has led to the exploration of alternative energy sources. This paper presents the development of a compressed-air-powered bike utilizing a single-cylinder piston engine with solenoid-controlled air intake. The proposed system leverages compressed air as a renewable energy source, offering an eco-friendly alternative to conventional internal combustion and electric vehicles. The engine operates through controlled air injections, precisely managed by an Electronic Control Unit (ECU) synchronized with the crankshaft position to optimize efficiency and performance. A high-pressure air tank serves as the primary energy source, while a decompression exhaust system is integrated to minimize energy losses during air expansion, ensuring smooth and efficient operation. The single-cylinder configuration is selected for its simplicity, cost-effectiveness, and reduced maintenance requirements, making it a practical solution for urban commuting and short-distance travel. A small onboard battery powers the solenoid valve and ECU, ensuring reliable functionality while maintaining a lightweight and efficient design. This study evaluates the feasibility, efficiency, and potential challenges of using compressed air as a propulsion medium for lightweight vehicles. The results highlight the benefits of emission-free operation, low noise pollution, and reduced dependency on fossil fuels.