Comparative Analysis of the Effectiveness of Rice Husk Pellets and Charcoal AsFuel For Domestic Purpose
IOSR Journal of Mechanical and Civil Engineering
In an effort to provide an affordable firewood and charcoal alternative to the rural households in Nigeria, Pellets were produced from rice husk using a mould and a hydraulic press at three (3) pressures of compaction of 28MPa, 31MPa and 34MPa and three (3) particles sizes of 212µm, 300µm and 425µm.The moisture content, ash content, bulk density, porosity index, and the calorific value were determined. With water boiling test, 100g of pellet sample P 1 , achieved 100 0 C in 6 minutes to boil
... minutes to boil 500ml of water while 100g of pellet samples P 6 and P 7 each achieved 100 0 C each in 8 minutes to boil 500ml. Comparative studies of the rice husk pellets and charcoal was conducted, the results showed that 100g of pellet burns uniformly under free convection with pale yellow flame and very little smoke while 100g of charcoal burns irregularly and would require forced convection. With water boiling test, 100g of charcoal sample achieved 100 0 C in 14 and 20 minutes to boil 500ml of water for C 1 and C 2 respectively. C 3 did not achieve 100 0 C.With calorific value ranging from 15.129 -17.589 MJ/kg, and good physical and combustion characteristic of the rice husk pellet, it can conveniently substitute for charcoal as a domestic fuel.