Item | Exergy loss | Ratio of exergy loss | Exergy efficiency | |||
kW | % | % | ||||
Steam turbine (ST) | High pressure turbine (HPT) | 44569.95 | 37.65 | 4.01 | 73.37 | |
Intermediate pressure turbine (IPT) | 39375.49 | 33.26 | 3.54 | 69.73 | ||
Intermediate pressure turbine (LPT) | 34444.31 | 29.09 | 3.10 | 85.54 | ||
∑ | 118389.76 | ―― | 10.65 | 81.22 | ||
Regenerative system (RS) | 1#High pressure heater (HPH) | 920.37 | 6.02 | 0.08 | 96.11 | |
2#High pressure heater (HPH) | 1329.59 | 8.70 | 0.12 | 95.13 | ||
3#High pressure heater (HPH) | 2018.07 | 13.20 | 0.18 | 90.72 | ||
Feed water pump (FWP) | 870.76 | 5.70 | 0.08 | 91.05 | ||
4#Deaerator (DH) | 2838.11 | 18.57 | 0.26 | 91.55 | ||
5#Low pressure heater (LPH) | 623.53 | 4.08 | 0.06 | 90.45 | ||
6#Low pressure heater (LPH) | 1088.69 | 7.12 | 0.10 | 87.41 | ||
7#Low pressure heater (LPH) | 4785.35 | 31.31 | 0.43 | 73.98 | ||
Shaft seal leakage heater (SSLH) | 347.17 | 2.27 | 0.03 | 71.30 | ||
Condensation water pump (CP) | 463.52 | 3.03 | 0.04 | 84.83 | ||
∑ | 15285.16 | ―― | 1.38 | 91.32 | ||
Boiler | ① | 20457.76 | 2.36 | 1.84 | ―― | |
② | 555.14 | 0.06 | 0.05 | ―― | ||
③ | 25735.01 | 2.97 | 2.32 | ―― | ||
④ | 4376.11 | 0.51 | 0.39 | ―― | ||
⑤ | 5171.17 | 0.60 | 0.47 | ―― | ||
⑥ | 592679.76 | 68.39 | 53.32 | ―― | ||
⑦ | 217624.59 | 25.11 | 19.58 | ―― | ||
∑ | 866599.54 | ―― | 77.97 | 42.83 | ||
Air cooling system (ACS) | 111131.14 | ―― | 10.00 | 5.66 | ||
Total | 1111405.50 | ―― | ―― | 30.75 | ||