Gas Flow Characteristics through Irregular Particle Bed with the Vertical Confined Wall for Waste Heat Recovery

Table 3

Summary of the relative uncertainty of main parameters.

Parameter	Symbol	Uncertainty/%	Parameter	Symbol	Uncertainty/%
Equivalent particle size		3.07	Pressure drop per unit height		4.45
Apparent density		1.42	Particle Reynolds number		4.87
Bulk density		2.15	Friction pressure drop		6.52
Voidage		2.58	Wall-modified Reynolds number		6.31
Shape factor		2.58	Wall-modified friction pressure drop		7.65