Harmonizing Drying Time, Layer Thickness, and Drier Zones for Drying Kinetics: Quality and Safety of Solar Tunnel-Dried Wet-Processed Parchment Coffee (Coffea arabica L.)

Table 3

Values of RMSE, , and at different layer thicknesses and zones of drier to evaluate the models.

Layer thickness	Zone 1				Zone 2			Zone 3			Open sun drying
	Models	RMSE			RMSE			RMSE			RMSE
2 cm	M. Midilli	0.03026	0.000995	0.9800	0.03896	0.00169	0.9731	0.02682	0.00084	0.9834	0.04335	0.00020	0.9886
	Diffusion approach	0.01796	0.000350	0.9900	0.02465	0.00068	0.9806	0.03221	0.00121	0.9700	0.02662	0.00075	0.9795
	Verma	0.01755	0.000335	0.9887	0.02204	0.00054	0.98522	0.04666	0.00254	0.9537	0.02086	0.00046	0.9848
	Henderson and Pabis	0.01816	0.000359	0.9879	0.02465	0.00068	0.98068	0.04203	0.00206	0.9498	0.02529	0.00068	0.9778
	Newton	0.01879	0.000368	0.9881	0.02466	0.00064	0.98055	0.18988	0.00277	0.9576	0.02662	0.00073	0.9795
	Modified page	0.01879	0.000384	0.9881	0.02600	0.00068	0.98055	0.05075	0.00300	0.9576	0.02662	0.00075	0.9795
	Two terms	0.01816	0.000359	0.9879	0.01908	0.00043	0.98811	0.04203	0.00225	0.9498	0.02529	0.00070	0.9778
4 cm	M. Midilli	0.028610	0.000882	0.9812	0.02252	0.00056	0.98398	0.02080	0.00049	0.9880	0.01682	0.00031	0.9925
	Diffusion approach	0.021354	0.000491	0.9839	0.02844	0.00089	0.97477	0.02199	0.00055	0.9859	0.01457	0.00023	0.9925
	Verma	0.019296	0.000401	0.9868	0.03248	0.00117	0.97847	0.03542	0.00142	0.9795	0.02120	0.00048	0.9861
	Henderson and Pabis	0.021592	0.000502	0.9836	0.03428	0.00118	0.96722	0.03136	0.00111	0.9717	0.02728	0.00079	0.9739
	Newton	0.022166	0.000510	0.9841	0.03928	0.00162	0.97167	0.04109	0.00179	0.9756	0.02975	0.00091	0.9767
	Modified page	0.022166	0.000529	0.9841	0.03928	0.00171	0.97167	0.04109	0.00191	0.9756	0.02217	0.00094	0.9767
	Two terms	0.022773	0.000581	0.9818	0.03261	0.00124	0.96722	0.03859	0.00181	0.9748	0.02728	0.00081	0.9739
6 cm	M. Midilli	0.025642	0.000693	0.9912	0.000624	0.00187	0.97779	0.01973	0.00042	0.9873	0.02249	0.00100	0.9926
	Diffusion approach	0.084907	0.007599	0.8634	0.06017	0.00386	0.97509	0.02479	0.00066	0.9801	0.01012	0.00012	0.9963
	Verma	0.081543	0.007009	0.9702	0.03896	0.00169	0.97309	0.02660	0.00076	0.9845	0.02380	0.00060	0.9873
	Henderson and Pabis	0.029649	0.000927	0.9840	0.024653	0.000675	0.98064	0.02763	0.00082	0.9755	0.02697	0.00076	0.9748
	Newton	0.028976	0.000862	0.9848	0.022036	0.000540	0.98522	0.03377	0.00118	0.9788	0.03185	0.00104	0.9789
	Modified page	0.028976	0.000885	0.9848	0.024649	0.000675	0.98068	0.03377	0.00123	0.9788	0.03185	0.00106	0.9789
	Two terms	0.023345	0.000590	0.98242	0.024661	0.000640	0.98055	0.02763	0.00086	0.9755	0.02697	0.00078	0.9748