Research Article

Investigation into the Flow Properties of Coarse Solid Fuels for Use in Industrial Feed Systems

Table 3

Hopper half angle for all fuels using TIVAR 88, stainless steel, and mild steel as wall materials.

MaterialHopper half angle (°)
TIVAR 88Stainless steelMild steelWet mild steel

Wood pellets33173410
Torrefied wood pellets29173415
Ground anthracite31313834
Torrefied wood chips32122811
Milled wood pellets31373814
Pulverised coal1314130