Tran, Khanh-Quang; Luo, Xun; Seisenbaeva, Gulaim; … - In: Applied Energy 112 (2013) C, pp. 539-546
. Norway spruce stump was used as feedstock. Two other types of biomass, poplar and fuel chips were also included in the study … is higher than that of 1.162 for the poplar wood samples and 1.145 for the fuel chips. It appears that torrefied stump …