A study on the effect of size and ratio of mixed rice husk and mango wood towards the thermal efficiency

Abstract

Thailand is a nation where much of its population is engaged in agriculture. In the realm of farming, the process often generates agricultural waste materials, including the leftover of rice husks from the rice milling process and mango wood from trimming, are used as fuel in the biomass stove. A study commenced by experimenting with boiling water to vaporize and to study the thermal efficiency of combustion from a composition of mango wood and rice husks in order to use as renewable energy for household use and as a material available in local communities. The study found that rice husk mixed with mango wood at a mixing ratio of 1:1 can be used as fuel in a biomass stove. The 1, 3, and 5-centimeter mango branches can be boiled with water until it evaporates and turns into steam. In addition, it has combustion thermal efficiency values ​​of 7.82, 7.50, and 7.75, which are similar, but reveal no significantly difference (P>0.05) In order to know the appropriate mixing ratio, the ratio of rice husk to mango wood was determined to be 1:1, 1:2, and 1:3. It was found that the mixing ratios were 1:1 and 1:2. and had similar thermal efficiency values ​​of 6.86 and 7.73, not significantly different in terms of Statistics (P>0.05) for the ratio of rice husk to mango wood 1:3 has the economical efficiency value. The lowest heat was 5.32, a statistically significant difference (P>0.05). All three ratios can be used as fuel for a biomass stove. The optimum mixing ratio of rice husk to mango wood is 1:2 which exposes the best thermal efficiency.