Effects of roof angle, inlet gap size and dryer height on temperature and relative humidity in a chimney-dependent solar crop dryer | Renewable Energy and Environmental Sustainability

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Table 4

The analysis of variance results for effects of roof angle, inlet gap size, and dryer height on temperature.

Source	DF	Adj SS	Adj MS	F-Value	P-Value
Model	33	490.403	14.8607	299.49	0.000
Linear	9	476.867	52.9852	1067.80	0.000
Height (cm)	5	380.850	76.1701	1535.05	0.000
Roof Angle (deg)	2	5.846	2.9231	58.91	0.000
Inlet Gap(mm)	2	90.170	45.0850	908.59	0.000
2-Way Interactions	24	13.536	0.5640	11.37	0.000
Height (cm) * Roof Angle (deg)	10	1.522	0.1522	3.07	0.016
Height (cm) * Inlet Gap(mm)	10	11.808	1.1808	23.80	0.000
Roof angle (deg) * Inlet Gap(mm)	4	0.205	0.0514	1.03	0.414
Error	20	0.992	0.0496
Total	53	491.395

Degrees of freedom = DF, sum of squares = SS, mean squares = MS, F – ratio of variance of a source to variance of error, determines significance at 95% confidence level = P < 0.05.

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