Thermal Performance Study of Solar Air Dryers for Cashew Kernel: A Comparative Analysis and Modelling Using Response Surface Methodology (RSM) and Artificial Neural Network (ANN)
Table 1
Empirical relations used for the thermal analysis.
Description
Equation
#
(A) Greenhouse chamber analysis
Input energy to solar greenhouse chamber
(1)
Amount of energy gain
(2)
Energy loss by convection and conduction through horizontal and vertical walls ()
Grasshoff number
(3)
Nusselt number for horizontal plate (according to McAdams for above heated)
(4)
Nusselt number for vertical plate
for
(5)
Heat transfer coefficient
(6)
Energy loss by convection and conduction through base and back wall
(7)
Useful energy in the greenhouse
(8)
Energy utilization ratio
(9)
Greenhouse dryer efficiency
(10)
(B) Drying chamber analysis
Heat gain in drying chamber
(11)
Heat utilized for drying
(12)
Heat loss through drying chamber
(13)
Heat let out through exit
(14)
Drying chamber efficiency
(15)
Drying rate
(16)
Drying analysis
Specific energy consumption
(17)
Percentage moisture removal from the cashew kernels
