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Table 5 Result of exergy analysis 3rd day (tomato)

From: Potential assessment and experimental analysis of solar vegetable dryer: in case of northern Ethiopia

Time (s) \({\text{Ex}}_{\text{dco}}\) (kJ/kg) \({\text{Ex}}_{\text{dci}}\) (J/kg) \({\text{Ex}}_{\text{loss}}\) (kJ/kg) \({\text{Ex}}_{\text{out}}\) (w) \({\text{Ex}}_{\text{rad}}\) (w) \(\eta_{{{\text{Ex}}.{\text{solar}}}}\) (%) \(\eta_{{{\text{Ex}}.{\text{do}}}}\) (%) \(\eta_{{{\text{Ex}}.{\text{net}}}}\) (%) Ta (°C) Tdco (°C) Tdci (°C) \(\bar{c}_{p}\) (KJ/kg. K)
0 0.221 0.280 0.059 387.1 73.30 21.3 32.8 34.5 1.005 1.005
3600 0.340 0.470 0.130 182.6 265.7 68.72 61.76 42.4 24.1 38.9 41.1 1.0053 1.0053
7200 0.378 0.421 0.043 163.7 279.5 58.6 88.62 51.9 27.6 42.9 43.8 1.0055 1.0055
10,800 0.903 1.040 0.138 137.1 242.7 56.5 84.72 47.8 32.2 56.2 58.1 1.006 1.0061
14,400 0.974 1.012 0.038 130.6 236.5 55.2 96.10 53.0 33.1 58.1 58.9 1.0061 1.0061
18,000 0.838 0.962 0.124 139.7 263.9 52.9 85.20 45.1 32 55.1 56.8 1.0060 1.0060
21,600 1.960 1.981 0.021 160.9 181.5 88.7 96.93 87.74 36.1 72.1 72.3 1.0066 1.0066
25,200 1.762 1.880 0.118 173.2 200.0 86.6 93.30 80.8 34.8 68.8 70 1.0065 1.0065
28,800 1.162 1.253 0.091 112.3 171.4 65.5 92.17 60.4 31.8 59.1 60.2 1.0061 1.0061
32,400 0.714 0.931 0.217 95.41 178.1 53.6 69.61 37.3 29.6 50.8 53.9 1.0058 1.0059
36,000 0.561 0.680 0.119 150.3 176.5 85.1 78.79 67.1 28.5 47.2 49.2 1.0056 1.0057
39,600 0.480 0.632 0.152 165.3 199.1 83.0 68.33 56.7 27.1 44.3 47.1 1.0055 1.0056