Optimization of gas path aerodynamics for PK-39 boiler of power generating unit No. 4 of Troitskaya SDPP using numerical simulation of gas flows

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• 作者：V. B. Prokhorov ; I. V. Grigorev ; M. V. Fomenko ; A. A. Kaverin
• 关键词：gas path ; boiler ; aerodynamic drag ; numerical simulation
• 刊名：Thermal Engineering
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：62
• 期：12
• 页码：886-891
• 全文大小：1,054 KB
• 参考文献：1.L. A. Rikhter, Gas-Air Tracts of Thermoelectric Power Stations, (Energoatomizdat, Moscow, 1984) [in Russian].
  2. Aerodynamic Calculation of Boiler Plants (Normative Method), (Energiya, Leningrad, 1977) [in Russian].
  3.I. V. Grigor鈥檈v, V. B. Prokhorov, and M. V. Fomenko, 鈥淎erodynamic improvement of the gas part of the300Mw power generating unit installed at Troitskaya state district power station,鈥?Vestnik MEI, No. 5, 27鈥?3 (2013).
  4.A. A. Aksenov and A. V. Gudzovskii, Pa帽ket of Application Programs Flow Vision. Ser. Aerophys. Applied Mathem., (MFTI, Moscow, 1998) [in Russian].
  5.A. A. Aksenov, V. V. Shmelev, M. L. Smirnova, V. V. Bankrutenko, I. V. Netronin, A. V. Budnikov, and S. A. Rogozhkin, 鈥淐ertification of Simulation System of Liquid and Gas Motion Flow Vision,鈥?SAPR i Grafika, No. 4,22(2006).
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• 作者单位：V. B. Prokhorov (1)
  I. V. Grigorev (1)
  M. V. Fomenko (1)
  A. A. Kaverin (1)
  
  1. Moscow Power Engineering Institute (MPEI, National Research University), ul. Krasnokazarmennaya 14, Moscow, 111250, Russia
  
• 刊物类别：Engineering
• 刊物主题：Engineering Thermodynamics and Transport Phenomena
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1555-6301

文摘

Power generating unit no. 4 of Troitskaya State District Power Plant (SDPP) is incapable of operating with a nominal load of 278 MW because of high aerodynamic drag of the gas path. At present, the maximum load of the two-boiler single-turbine unit is 210 MW practically without a possibility of adjustment. The results of numerical simulation of the gas flow for the existing gas path from the electrostatic precipitator (EP) to the smoke exhausts (SEs) and two flue designs proposed for renovation of this section are presented. The results of simulation show that the existing flue section has high aerodynamic drag, which is explained by poor, as regards aerodynamics, design. The local loss coefficient, in terms of the dynamic pressure in the sucker pocket of the smoke exhaust is equal to 4.57. The local aerodynamic loss coefficient after renovation at the considered section according to the first version would make 1.48, and according to the second version 1.325, which would reduce losses at this section by more than a factor of three, and ensure the power unit operation with the rated load. Keywords gas path boiler aerodynamic drag numerical simulation