Rancang Bangun Boiler Vertikal Pipa Api Kapasitas 100 Kg/Jam

Abstract

Increasing productivity in small-scale tofu industries in Indonesia heavily relies on the efficiency of the soybean boiling process, which is commonly conducted using conventional wood-fired methods. This study aims to design and develop a vertical fire-tube boiler capable of producing 100 liters of steam per hour to expedite the soybean cooking process in tofu production. The research methodology includes the design and construction of the boiler at Politeknik Negeri Bengkalis, performance testing, and analysis of heating efficiency. The boiler was constructed with a fire-tube and economizer combination designed according to ASME V and VI standards, using stainless steel to enhance durability. Testing indicated that the boiler could reach 100°C within 30 minutes and generate a stable steam capacity at a maximum pressure of 5 bars. Performance results further showed a heating efficiency of 87% during a 60-minute operational period. The study concludes that the designed boiler significantly improves tofu production capacity while reducing heating time, with positive implications for energy and cost efficiency. Future research is recommended to explore alternative fuel sources and develop automated control systems to further enhance performance and efficiency.