Table 6 Result of exergy analysis (potato) 1st 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 | 0.230 | 0.330 | 0.10 | – | 323.20 | – | 56.52 | – | 23.6 | 35.3 | 37.9 | 1.0051 | 1.0052 |
3600 | 0.434 | 0.531 | 0.097 | 207.7 | 242.66 | 85.6 | 77.65 | 66.5 | 27.7 | 44.1 | 45.9 | 1.0055 | 1.0056 |
7200 | 0.181 | 0.187 | 0.006 | 164.1 | 282.34 | 58.1 | 96.68 | 56.2 | 28.5 | 49.3 | 50.8 | 1.0057 | 1.0058 |
10,800 | 1.381 | 1.457 | 0.076 | 184.1 | 280.70 | 65.6 | 94.49 | 62.0 | 28.7 | 58.4 | 60.3 | 1.006 | 1.0061 |
14,400 | 1.479 | 1.554 | 0.075 | 211.7 | 324.55 | 65.2 | 94.93 | 61.9 | 29.3 | 60.1 | 61.0 | 1.0061 | 1.0061 |
18,000 | 1.915 | 1.982 | 0.067 | 156.8 | 243.30 | 64.4 | 96.50 | 62.1 | 32.1 | 62.8 | 64.5 | 1.0062 | 1.00625 |
21,600 | 1.910 | 1.987 | 0.077 | 222.9 | 278.10 | 80.2 | 95.97 | 76.9 | 30.1 | 65.3 | 66.9 | 1.0062 | 1.0063 |
25,200 | 0.981 | 1.060 | 0.079 | 176.7 | 232.64 | 75.9 | 91.89 | 69.7 | 30.0 | 55.9 | 57.0 | 1.006 | 1.00602 |
28,800 | 0.613 | 0.771 | 0.158 | 165.5 | 253.40 | 65.3 | 74.23 | 48.5 | 29.5 | 49.1 | 50.1 | 1.0057 | 1.0058 |
32,400 | 0.410 | 0.488 | 0.078 | 138.8 | 201.87 | 68.8 | 80.97 | 55.7 | 28.6 | 44.5 | 46.1 | 1.0056 | 1.0056 |
36,000 | 0.240 | 0.350 | 0.11 | 155.8 | 221.4 | 70.1 | 54.17 | 37.9 | 26.3 | 38.4 | 42.1 | 1.0053 | 1.0054 |
39,600 | 0.266 | 0.324 | 0.058 | 161.5 | 262.1 | 61.6 | 78.19 | 48.2 | 24.2 | 34.2 | 38.3 | 1.0051 | 1.0053 |