Experimental Study on Gas-Solid Heat Transfer Characteristics for the Vertical Waste Heat Recovery Using the Inverse Problem Method

Table 2

Experimental conditions and characteristic parameters for 7 kinds of particle sizes.

Particle size (mm)	Equivalent particle diameter (mm)	Bed voidage	Bed height (m)	Gas velocity (m·s^-1)
5~10	5.76	0.5728	0.5673	0.8, 1.0, 1.2, 1.4, 1.6
10~15	11.11	0.5939	0.6162	0.8, 1.0, 1.2, 1.4, 1.6
15~20	14.72	0.6038	0.6434	0.8, 1.0, 1.2, 1.4, 1.6
20~25	19.50	0.6073	0.6576	0.8, 1.0, 1.2, 1.4, 1.6
25~30	23.55	0.6118	0.6748	0.8, 1.0, 1.2, 1.4, 1.6
35~40	30.97	0.6203	0.6945	0.8, 1.0, 1.2, 1.4, 1.6
45~50	38.80	0.6293	0.7149	0.8, 1.0, 1.2, 1.4, 1.6