Abstract
ABSTRACTExperimental work to figure out the effect of tuyer inclination angle on performance of small-scale downdraft gasifier fed by rice husk–sawdust blend was performed. Performance of the gasifier in terms of the temperature profile, fuel consumption rate, composition and heating value of producer gas, and cold gas efficiency (CGE) is evaluated. Air is injected at the location of 330 mm above the grate. Tuyer inclination angles observed are 0°, 30°, and 60°. Meanwhile, ratio of rice husk and sawdust is 1:1 by mass and equivalence ratio for gasification is 0.15 for each tuyer inclination angle. The result indicates that the use of inclined tuyer increases maximum temperature and volume fraction of CO and H2 in producer gas thus enhances higher heating value of producer gas. Maximum CGE of 76.29% is found with the use of horizontal tuyer.
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