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Table 11 Result of exergy analysis [onion] 3rd day

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) \(\eta_{{{\text{Ex}}.{\text{solar}}}}\) (%) \(\eta_{{{\text{Ex}}.{\text{do}}}}\) (%) \(\eta_{{{\text{Ex}}.{\text{net}}}}\) (°C) Ta (°C) Tdco (°C) Tdci (°C) \(\bar{c}_{p}\)(KJ/kg K)
0 0.265 0.382 0.117 297.4 55.85 24.5 37.2 39.8 1.0052 1.0053
3600 0.184 0.261 0.077 126.2 225.2 56.0 58.15 32.6 27.5 38.1 40.2 1.0053 1.0054
7200 0.321 0.414 0.093 171.8 214.5 80.1 70.92 56.8 29.1 43.2 45.2 1.0055 1.00561
10,800 0.347 0.432 0.085 132.6 171.1 77.5 75.51 58.5 35.1 49.9 52.1 1.0059 1.0060
14,400 0.914 0.959 0.045 137.4 178.9 76.8 95.10 73.1 36.1 50.7 53.2 1.0060 1.0061
18,000 0.762 0.931 0.169 861.5 1084. 79.4 77.82 61.8 37.9 60.1 63.3 1.0063 1.0065
21,600 0.843 1.068 0.225 145.8 185.9 78.4 73.31 57.5 35.7 59.0 62.1 1.0062 1.0063
25,200 0.816 1.038 0.222 145.6 188.9 77.1 72.79 56.1 35.3 58.2 61.3 1.0063 1.0063
28,800 0.349 0.538 0.189 137.1 207.8 66.0 45.84 30.3 29.4 44.1 47.8 1.0056 1.0057
32,400 0.399 0.576 0.177 157.4 217.8 72.3 55.63 40.2 27.5 43.2 46.5 1.0055 1.0056
36,000 0.291 0.381 0.090 175.8 221.4 79.4 69.10 54.9 26.3 38.1 41.7 1.0053 1.0054
39,600 0.234 0.326 0.092 217.3 271.2 80.1 60.68 48.6 24.2 36.1 39.2 1.0052 1.0053