汽轮机高位布置超超临界燃煤发电系统变工况㶲经济性分析

李延兵, 贾树旺, 张军亮, 符悦, 刘明, 严俊杰

Exergy Economic Analysis of Ultra-Supercritical Coal-Fired Power Plants With High-Level Layout of Turbine Under Load-Cycling Conditions

Yanbing LI, Shuwang JIA, Junliang ZHANG, Yue FU, Ming LIU, Junjie YAN

表8 机组的㶲和㶲经济性数据

Tab. 8 Exergy and exergy economic data of the unit

流股编号 压力/MPa 温度/℃ 质量流量/(kg/s) 焓值/(kJ/kg) 㶲/MW 价格/(元/MJ) 2 25.820 0 600 521 3 486 833.78 1 3 11.480 0 464 0 3 259 0 1 4 8.770 0 422 37 3 186 46.87 1 5 5.900 0 365 485 3 088 572.32 1 6 5.900 0 365 51 3 088 60.40 1 7 5.900 0 365 434 3 088 511.92 1 8 5.430 0 620 434 3 710 670.40 0.374 3 9 2.600 0 502 23 3 465 29.80 0.374 3 10 1.200 0 386 20 3 232 20.95 0.374 3 11 0.590 0 294 12 3 050 10.07 0.374 3 12 0.580 0 294 379 2 952 325.79 0.374 3 13 0.370 0 243 23 2 952 17.47 0.374 3 14 0.120 0 130 17 2 735 8.87 0.374 3 15 0.050 0 79 18 2 594 6.68 0.374 3 16 0.010 5 47 230 2 410 35.41 0.374 3 17 0.010 5 47 390 200 4 736.47 0.465 4 18 3.710 0 75 390 316 1.32 0.466 1 19 3.710 0 100 390 421 7.52 0.228 9 20 3.710 0 136 390 575 14.57 0.228 4 21 3.710 0 153 390 648 28.81 0.088 3 22 1.130 0 185 521 787 37.03 0.296 2 23 38.740 0 191 521 829 93.98 0.296 2 24 38.740 0 223 521 971 121.97 0.203 1 25 38.740 0 273 521 1 194 171.72 0.271 8 26 38.740 0 301 521 1 331 205.20 0.115 4 27 10.990 0 307 0 1 381 0.00 1 28 8.520 0 278 37 1 226 11.79 1 29 5.730 0 229 88 985 18.99 1 30 2.470 0 196 111 835 17.32 0.406 6 31 0.560 0 142 12 596 0.91 0.406 6 32 0.350 0 105 35 442 1.36 0.406 6 33 0.110 0 80 17 336 0.33 0.406 6 34 0.040 0 52 35 219 0.17 0.406 6 35 38.740 0 273 521 1 194 171.72 0