Table 3 Drying coefficient and determination coefficient of Henna leaves for OAD and DDSD dryer.

From: Mathematical modeling, drying kinetics, and economic analysis of a hybrid photovoltaic thermal solar dryer for henna leaves

Coefficient

OAD

DDSD

LT2

LT4

LT6

LT2

LT4

LT6

k

0.23

0.19

0.181

0.252

0.249

0.228

R2

0.989

0.94

0.9323

0.9593

0.9742

0.9451

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