Design and Build of Biomass Machine for Small Engines

Abstract

Abstract Biomass machine are those causing incomplete combustion with the limited amount of oxygen used in combustion of 30–40% less than complete combustion. Biomass gas derived from the gasification combustion process contains such the main components as carbon monoxide (CO), hydrogen (H₂), methane (CH₄), carbon dioxide (CO₂), and other combustible gases. This research aims to study the design of a biomass generator for the military water supply unit’s engine when going out in the field or assisting various incidents by using biomass as its fuel. Initially, experiments were conducted to determine the biomass gas factors in each operating condition of the engine. Several parameters were adjusted, namely speed of biomass entering the engine, temperature of biomass in the combustion chamber, and the ratio of ingredients between biomass gas and air. Subsequently, the use of biomass fuel was compared with benzene gasohol 95 benzene. The results indicated that the average rate of using the gasohol 95 in running the engine for one hour used an amount of gasohol 95 of 722.67 cc, equivalent to 15.72 Thai Baht. On the contrary, changing to biomass fuel to run the engine for one hour is equal to using 975.50 grams of charcoal of Krathin-Narong trees, all of which are worth 9.75 Thai Baht. The prices of both types of fuel are referred to the one of gasohol 95 on September 9, 2020, at 21.75 baht per liter [9], and another of Krathin-Narong Charcoal at 10 Thai Baht per kilogram. Operating an engine using biomass fuel together with gasohol 95 could reduce benzene consumption by 7.86 Thai Baht per hour. In return for the cost of constructing a traditional biomass generator, it takes approximately 80 days for operation to become cost-effective.