Experimental study of the effect of HHO (oxyhydrogen) electrolyzer installation location on fuel mass flow rate in a four-stroke gasoline motorcycle engine
Keywords:
HHO gas, Electrolyzer, Installation location, Fuel mass flow rate, MotorcycleAbstract
The surge in motorcycle utilization in Indonesia presents significant challenges concerning fossil fuel dependency and environmental pollution from exhaust emissions. This study explores the efficacy of supplementing a four-stroke motorcycle engine with oxyhydrogen (HHO) gas, generated via a wet-cell electrolyzer, to enhance fuel efficiency. The primary focus is to evaluate the influence of two distinct electrolyzer installation points—the air filter and the intake manifold—on the fuel mass flow rate across a range of engine speeds (1500, 2000, 2500, and 3000 rpm). Experimental results demonstrated consistent reductions in fuel consumption at all tested speeds, with savings ranging from 5.46% to 23.90%. The most substantial improvement, a 23.90% reduction, was achieved at 2000 rpm with the electrolyzer mounted on the intake manifold. These findings suggest that HHO enrichment promotes a more homogeneous air-fuel mixture and more complete combustion. The variation in performance based on installation location underscores the necessity of optimizing system integration to balance HHO yield against electrical input. This work provides empirical support for HHO supplementation as a viable auxiliary technology to improve the efficiency of small-scale internal combustion engines, potentially reducing both fuel costs and emissions. Further investigations into long-term engine effects, emission profiles, and electrolyzer design optimization are recommended to advance practical applications.
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