Table 7 Result of exergy analysis (potato) 2nd day
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 | 0.392 | 0.492 | 0.10 | – | 304.0 | – | 74.48 | – | 22.9 | 36.2 | 40.3 | 1.0051 | 1.0053 |
3600 | 0.385 | 0.475 | 0.09 | 298.6 | 335.2 | 89.1 | 76.63 | 68.3 | 23.1 | 38.4 | 41.8 | 1.0052 | 1.0053 |
7200 | 0.303 | 0.410 | 0.107 | 224.8 | 278.6 | 80.7 | 64.68 | 52.2 | 25.5 | 39.1 | 42.5 | 1.0053 | 1.0054 |
10,800 | 0.797 | 0.831 | 0.034 | 203.2 | 327.7 | 62.0 | 95.93 | 59.5 | 27.3 | 48.1 | 50.2 | 1.0056 | 1.0057 |
14,400 | 0.745 | 0.873 | 0.128 | 208.8 | 326.1 | 64.3 | 82.82 | 53.3 | 27.7 | 49.3 | 51.2 | 1.0057 | 1.0057 |
18,000 | 1.470 | 1.490 | 0.02 | 294.9 | 319.4 | 92.3 | 98.64 | 91.0 | 28.1 | 54.5 | 58.2 | 1.0058 | 1.0059 |
21,600 | 1.365 | 1.410 | 0.045 | 219.5 | 247.6 | 88.6 | 96.70 | 85.7 | 30.9 | 58.2 | 61.1 | 1.0061 | 1.0061 |
25,200 | 1.045 | 1.167 | 0.122 | 185.3 | 240.7 | 77.0 | 88.33 | 68.0 | 30.5 | 56.3 | 57.9 | 1.0060 | 1.0061 |
28,800 | 0.830 | 0.939 | 0.109 | 128.6 | 197.9 | 64.9 | 86.87 | 56.4 | 30.3 | 53.2 | 54.8 | 1.0059 | 1.0059 |
32,400 | 0.820 | 0.891 | 0.071 | 132.5 | 205.7 | 64.4 | 91.34 | 58.8 | 28.1 | 50.8 | 51.8 | 1.0057 | 1.0060 |
36,000 | 0.891 | 0.973 | 0.082 | 122.5 | 219.2 | 55.8 | 90.79 | 50.7 | 26.2 | 45.3 | 47.3 | 1.0055 | 1.0056 |
39,600 | 0.504 | 0.760 | 0.236 | 141.6 | 258.9 | 54.7 | 51.1 | 27.9 | 24.5 | 42.1 | 46.3 | 1.0054 | 1.0055 |