The Use of Inclined Tuyer and Its Effect on the Compatibility of Downdraft Gasifier Fed by Rice Husk and Wood Sawdust

The recent work investigates effect of tuyer inclination angle of 30° and 60° on the compatibility of small-scale downdraft gasifier on feedstocks of rice husk and wood sawdust. The compatibility in terms of cold gas efficiency of the gasifier are compared for both feedstocks. The results are also compared with the result for the use of horizontal tuyer. The result indicates that inclined tuyer effects temperature profile, fuel consumption rate, higher heating value gas, and cold gas efficiency. The use of inclined tuyer decreases cold gas efficiency of the gasifier. The compatibility of the gasifier on the feedstocks in terms of cold gas efficiency using inclined tuyer is lower than using horizontal tuyer. The cold gas efficiency with horizontal tuyer 0°, and inclined tuyer 30°, and 60° are 78.39%, 51.73% and 55.30% for rice husk gasification. Meanwhile for sawdust gasification, the values are 66.36%, 42.25% and 35.40%, respectively.