3.1. Effect of moisture content on calorific values using specific biomass species In the present study, selected biomass (cotton waste) having a high value of volatile matter and low ash content was oven dried at 100 C for 1 h and subjected to determine heating value using bomb calorimeter. The same procedure was repeated for consequent
three cycles. Analysis procedure used for heating value analysis is described in previous section. From Fig. 3, it is observed that pretreatment to remove moisture of cotton waste has significant impact on heating values. Even a small pretreatment is sufficient to improve the heating value. Thus, raw biomass material with little processing can be used for energy applications. Heating values for cotton waste before and after processing are shown in Fig. 4.
Fig. 3, it is observed that pretreatment to remove moisture of cotton waste has significant impact on heating values. Even a small pretreatment is sufficient to improve the heating value. Thus, raw biomass material with little processing can be used for energy applications. Heating values for cotton waste before and after processing are shown in Fig. 4.
Few experiments have been repeated to check the accuracy ofheating values of samples. The accuracy was observed in the range of ±2% maximum, which is acceptable for experiments.