bulk density (kg m−3) 165 168 133 135 particle density (kg m−3) 1381 1373 1366 1353 HHV (MJ kg−1) 20.57 20.35 22.33 22.24 weight loss (%) 7.14 9.22 33.00 35.64 energy yield (%) 94.04 90.95 73.65 70.46 Element Analysis (%) C 49.51 50.64 55.35 55.19 H 6.19 6.03 5.71 5.75 O 44.20 43.27 38.95 39.07 N 0.11 0.07 0.00 0.00