Putra, Ryan Hadi (2025) Rancang Bangun Alat Pencetak Briket Arang Tempurung Kelapa Dengan Sistem Screw Extruder Kapasitas 50 Kg/jam. Other thesis, Universitas Islam Riau.

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Abstract

The utilization of coconut shell waste as raw material for charcoal briquette production is an environmentally friendly solution that enhances the economic value of waste. This study demonstrates that the use of a screw extruder system is not only effective and efficient but also contributes to waste management efforts and the optimal utilization of renewable energy. In this research, a coconut shell charcoal briquette molding machine with a screw extruder system and a capacity of 50 kg/hour was designed to improve productivity and reduce reliance on manual labor. The machine uses a DC motor as its primary driver, equipped with three transmission systems: pulley-belt, gearbox, and sprocket-chain. The design process involved literature reviews, designing with SolidWorks software, planning, cutting, welding, turning, and assembling components. The resulting prototype was tested to measure its capacity and efficiency. The determination of the die and components included calculations for capacity, transmission, screw shaft, frame mounting stress, and tensile stress on bolts and nuts. During testing, with a screw speed of 15.6 rpm and a motor speed of 1496 rpm, 5 kg of raw material was processed, producing 3.9 kg of briquettes in 233 seconds. Capacity calculations yielded a result of 57.6 kg/hour, and the efficiency testing showed a performance efficiency of 78%. These results indicate that the coconut shell charcoal briquette molding machine with a capacity of 50 kg/hour significantly improves briquette production efficiency compared to manual methods.

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