Table 2: Performance evaluation of the system.

S/NParametersValuesEquations used

1Heat absorbed by radiation into the collector, 132.35 W (4)
2Total solar input, 727.22 W/m2 (5)
3Heat loss by conduction and convection through the base of the collector, 70.99 W (6)
4Useful heat in collector, 61.36 W (7)
5Collector efficiency, 46.4% (8)
6Heat absorbed by radiation in cabinet, 291.48 W (9)
6Heat transfer from collector case into cabinet, 0.97 W (10)
7Heat radiated by cabinet surface, 26.64 W (11)
8Heat transfer from cabinet side wall by cond/conv, 27.94 W (12)
9Heat transfer from cabinet top wall by cond/conv, 2.74 W (13)
10Heat transfer from cabinet bottom by cond/conv, 4.89 W (14)
11Total heat loss from cabinet, 62.21 W (15)
12Useful heat in cabinet, 230.24 W (16)
13System efficiency, 78.73% (17)
14Percentage moisture removed from product, 77.5% (18)
15Final moisture content of product, 15.75% (19)
16Amount of moisture content removed, 1.29 kg (20)
17Quantity of heat used in evaporation, 3.1 × 106 MJ (21)
18Average drying rate, 0.184 kg/hr (23)
19Drying time, (0.213/day)−1 (24)