Biomass pellet manufacturers of Rajasthan state are currently producing the best products by making pellets of 50%-50% mustard husk and Napier grass:





To determine the Gross Calorific Value (GCV) and ash content of this mixture, we can use weighted averages based on the proportions of each material. The typical values for mustard husk and Napier grass are as follows:



mustard husk has a GCV of 3500-4000 kcal/kg with an ash content of 6-8%, while Napier grass has a GCV of 3800-4200 kcal/kg with an ash content of 2-3%. For the calculations,





we will use average values—3750 kcal/kg for mustard husk and 4000 kcal/kg for Napier grass, with ash content set at 7% for mustard husk and 2.5% for Napier grass.


To calculate the GCV of the blend, we apply the formula: GCVblend = (50/100 × GCVmustard) + (50/100 × GCVnapier). Using the average GCV values, this gives: GCVblend = (50/100 × 3750) + (50/100 × 4000) = 1875 + 2000, resulting in a GCV of 3875 kcal/kg for the blend.


Similarly, to calculate the ash content, we use the formula: Ashblend = (50/100 × Ashmustard) + (50/100 × Ashnapier). Applying the ash percentages: Ashblend = (50/100 × 7%) + (50/100 × 2.5%) = 3.5% + 1.25%, resulting in an ash content of 4.75% for the mixture.


In conclusion, this 50-50 blend of mustard husk and Napier grass biomass pellets has a GCV of approximately 3875 kcal/kg and an ash content of about 4.75%, making it an efficient and balanced option for biomass energy production.