[Retracted] Kinetics of Sludge Superheated Steam Drying and Optimization of Process Parameters

Table 6

Fitting results of drying stage of sludge superheated steam drying under different thickness of sludge.

Model name	Thickness of sludge (mm)
	2 mm			3.5 mm			6 mm			10 mm
	R^2	χ^2 ×10^−4	RMSE	R^2	χ^2 ×10^−4	RMSE	R^2	χ^2 ×10^−4	RMSE	R^2	χ^2 ×10^−4	RMSE
Page	0.99639	2.66344	0.01632	0.99809	1.53711	0.0124	0.99792	1.6482	0.01284	0.99732	2.04015	0.01428
Henderson and Pabis	0.97607	17.7	0.04203	0.97585	19.4	0.04407	0.98379	12.9	0.03586	0.98874	8.56559	0.02927
Overhults	0.99639	2.66333	0.01632	0.99809	1.53613	0.01239	0.99793	1.63936	0.0128	0.99733	2.03151	0.01425
Logarithmic	0.99977	0.17304	0.00416	0.99874	1.0211	0.0101	0.99852	1.17649	0.01085	0.99944	0.42422	0.00651
Lewis	0.8292	124.4	0.11153	0.84284	125.5	0.11204	0.87315	100.1	0.10006	0.89942	76.2	0.08732
Two-term model	0.99051	7.0052	0.02647	0.99266	5.90662	0.0243	0.99735	2.1047	0.01451	0.99859	1.07103	0.01305