Design, fabrication and performance evaluation of used oil-powered stove with quick start ignition system
Date
2024
Authors
Alrence A. Bajum
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Abstract
Improper disposal of used engine oil poses significant environmental hazards, contaminating water supplies and contributing to pollution. In the Philippines, 240 million liters of used oil are produced annually, with 95% improperly managed, causing severe ecological impacts. This study was conducted to address these issues by developing a used oil-powered stove with a quick-start ignition system. A used oil-powered stove was design using AutoCAD-a widely used computer-aided design (CAD) software. It has five major components which includes frame, oil tank, blower, automatic ignition switch and burner. The used oil-powered stove was fabricated using angle bar and round bar, as well as pipe, flat bar and steel plate. Most of these materials can be found at junk shops and as scrap. the performance of the stove was assessed based on thermal efficiency, firepower, gas emissions, burning rate, and fuel consumption. Results showed that both blower speed and starting condition significantly influenced performance. Hot starts combined with high blower speed resulted in the shortest boiling times (22 minutes) and highest thermal efficiency (19.67%), firepower (6050.67 watts) and burning rate (9.33 g/min). Conversely, cold start with low blower speed led to the longest boiling times (37 minutes), lowest thermal efficiency (13.33%), firepower (4183.67 watts), and burning rate (6.33 g/min). Emissions from the stove were compliant with local and EU standards, indicating its environmental and human safety. The cost of the used oil-powered stove was low-cost compared to commercial stove like LPG. The total annual operating cost for the used oil-powered stove with a quick-start ignition system is 8,781 Php, whereas for the LPG stove it is 17,236 Php. The hourly operating cost is 6 Php for the used oil-powered stove and 11.80 Php for the LPG stove. The use oil-powered stoves can offer an economical, effective and green way to cook and heat.