Open AccessStudy of Corn Stover Particle Size Distribution Characteristics for Knife Mill and Hammer Mill
Author(s) -
Daizhong Su,
Manlu Yu
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/358/5/052060
Subject(s) - corn stover , mill , stover , hammer , particle size distribution , grinding , biomass (ecology) , environmental science , pulp and paper industry , mathematics , particle size , materials science , agronomy , engineering , composite material , metallurgy , statistics , biofuel , waste management , mechanical engineering , field experiment , biology , chemical engineering
Corn stover is a major agricultural biomass feedstock. The particle size distribution (PSD) of ground corn stover is important for biomass to bioenergy conversion. The objectives of this study were to evaluate Rosin-Rammler (RR) distribution, normal distribution and lognormal distribution on analysing PSD of corn stover grinded by knife mill and hammer mill, and to compare the grinding performance for knife mill and hammer mill. RR distribution model provided the best fitting results (0.998⩽ Adj.R 2 ⩽1) to the ground corn stover among the three PSD distribution models. The grinding performance based on the characteristic parameters (geometric mean diameter, geometric standard deviation, RR distribution parameter) analysis for the knife mill is better than the hammer mill for grinding corn stover under the same conditions.