SIMULATION OF ENGINE ADAPTATION IN A HYBRID RENEWABLE ENERGY SYSTEM PRODUCING ELECTRIC AND HYDROGEN

Abstract

The hybrid renewable energy system comprises 15kW-peak solar panels, 12kW wind turbines, and 3.8kW
syngas generators, delivering 9kWh/day of electricity and producing 977kg of hydrogen annually. This system
contributes to a reduction of 9,892kg of CO₂ emissions per year. The output power of the syngas engine in the
hybrid system varies depending on the type of biomass supplied to the gasifier. When using syngas derived
from the direct gasification of biomass, the GX200 engine fails to maintain stable system capacity. However,
when fueled by syngas from the gasification of refuse-derived fuel (RDF) biomass, the engine's indicated cycle
work increases by approximately 18% compared to direct biomass gasification. Using RDF gasification of
coconut shells, bean husks, and rice husks, the GX200 engine achieves a power output of around 3.8 kW,
satisfying the hybrid system's operational requirements. Across all syngas fuel types, the engine's NOₓ
emissions are significantly lower than those of conventional fuels.