The Effect of Adding Candlenut Shell Into the Low-Rank Coal on Combustion Performance

Thermochemical Characteristics of Briquettes of The Low-Rank Coal Mixed with Charcoal Sawdust of Meranti Wood

“…The optimal number of additions of SMW into the LRC is 10%, at the percentage of these additions the highest thermal efficiency is obtained by 45.23 %, this result is relevant to the addition of CNS into the LRC by 10% [10].…”

“…The proximate analysis of the sample is presented in Figure 3. Based on Figure 3, it is presented that the M content in SMW is less than LRC and the FC content is greater in SMW, this fact is presented the SMW has the potential to increase the combustion efficiency of the LRC, and this is an indicator that strengthens the improvement of the combustion quality of the LRC [10], [15], [16], However, the content of VM and A is lower in SMW so that it has the potential to decrease combustion reactivity [17] The HHV content of the sample is presented in Figure 4. Based on figure 4, it is presented that the SMW increases the energy potential of the LRC combustion, this will upgrade the LRC.…”

“…Based on the figure 7, it can be seen that the thermal efficiency of SMW is greater than the LRC, this is predicted due to the lower M content in the SMW compared to the M content in the LRC, the low M factor in the sample has implications on improving the ignition temperature of the fuel. Moreover, the high content of FC and HHV in SMW has a positive impact on increasing the energy content resulting in an increase in combustion reactivity and thermal efficiency [10][17][14] [25].…”

“…Some research results that mix coal with biomass in order to improve the quality of coal combustion include: The effect of adding wheat straw and wood mixed with coal in the combustion process at a temperature of 900-1100 o C, the results obtained are reduced emissions of NO, CO and unburned carbon (unburn-carbon, UBC) [8] [9]. The effect of adding candlenut shell (CNS) into the LRC is an increase in combustion reactivity, a decrease in combustion gas emissions (NOx, SOx, CO2 and CO), as well as an increase in combustion efficiency, and the optimal amount of addition of CNS into the LRC is 10% [10]. One of the biomass wastes that has the potential to be mixed with LRC is sawdust from meranti IOP Publishing doi:10.1088/1755-1315/1157/1/012039 2 wood (Sawdust Meranti Wood, SMW).…”