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Table 4 Result of exergy analysis 2nd 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) \({\text{Ex}}_{\text{dci}}\) (KJ/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 0.243 0.331 0.088 390.00 63.78 22.1 34.2 36.3 1.0051 1.0051
3600 0.481 0.549 0.068 260.1 337.96 76.9 85.86 66.0 24.6 41.8 43 1.0054 1.0054
7200 0.485 0.535 0.05 160.9 234.97 68.5 89.69 61.4 29.5 46.9 47.8 1.0057 1.0057
10,800 0.759 0.878 0.119 125.6 246.99 51.0 84.32 43.0 30.3 52.1 53.8 1.0058 1.0059
14,400 0.571 0.619 0.048 199.8 257.12 77.7 91.59 71.2 29.1 48 48.8 1.0057 1.0059
18,000 1.134 1.210 0.076 119.3 308.14 38.7 93.30 36.9 30.1 57 66.3 1.0060 1.0063
21,600 0.829 0.999 0.17 161.8 307.34 52.6 79.49 41.8 30.9 53.1 55.3 1.0059 1.0060
25,200 0.547 0.662 0.115 208.9 256.22 81.5 78.98 64.4 29.5 48 49.9 1.0057 1.0058
28,800 0.554 0.722 0.177 181.9 204.23 89.1 68.05 60.6 28.5 47.1 49.8 1.0056 1.0057
32,400 0.383 0.438 0.055 121.2 204.40 59.3 85.64 50.8 28.4 43.8 44.9 1.0055 1.0056
36,000 0.380 0.412 0.032 118.4 208.60 56.7 91.58 51.9 28.1 41.2 44.1 1.0055 1.0055
39,600 0.220 0.310 0.09 80.95 177.44 45.6 59.10 26.9 27.5 39.1 41.4 1.0054 1.0055