The Effect of Condensing Steam Turbine Exhaust Hood Body Geometry on Exhaust Performance Efficiency
| العنوان: | The Effect of Condensing Steam Turbine Exhaust Hood Body Geometry on Exhaust Performance Efficiency |
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| المؤلفون: | A. N. Paramonov, V. G. Gribin, O. M. Mitrokhova |
| المصدر: | Thermal Engineering. 65:371-378 |
| بيانات النشر: | Pleiades Publishing Ltd, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | geography, geography.geographical_feature_category, 020209 energy, Flow (psychology), Diffuser (automotive), Energy Engineering and Power Technology, Mechanical engineering, 02 engineering and technology, Aerodynamics, Inlet, Turbine, 020401 chemical engineering, Nuclear Energy and Engineering, Steam turbine, 0202 electrical engineering, electronic engineering, information engineering, Environmental science, Power engineering, 0204 chemical engineering, Condenser (heat transfer) |
| الوصف: | The article presents data from combined numerical and experimental investigations of the effect that the overall dimensions of the exhaust hood of a steam turbine with an underslung condenser has on the aerodynamic losses in the hood. Owing to the properly selected minimum permissible overall dimensions of the exhaust hood, more efficient operation of this turbine component is achieved, better vibration stability of the turbine set shaft line is obtained, and lower costs are required for arranging the steam turbine plant in the turbine building. Experiments have shown that the main overall dimensions of the hood body have a determining effect on the exhaust hood flow path profile and on its aerodynamic performance. Owing to properly selected ratios between the exhaust hood body main sizes without a diffuser, a total loss coefficient equal to approximately unity has been obtained. By using an axial–radial diffuser, the energy loss can be decreased by 30–40% depending on the geometrical parameters and level of velocities in the inlet section of a hood having the optimal overall dimensions. By using the obtained results, it becomes possible to evaluate the overall dimensions necessary for achieving the maximal aerodynamic hood efficiency and, as a consequence, to obtain better technical and economic indicators of the turbine plant as a whole already at the initial stage of its designing. If a need arises to select overall dimensions smaller than their optimal values, the increase of energy loss can be estimated using the presented dependences. The cycle of investigations was carried out on the experimental setups available in the fundamental research laboratory of the Moscow Power Engineering Institute National University’s Department of Steam and Gas Turbines with due regard to the operating parameters and similarity criteria. |
| تدمد: | 1555-6301 0040-6015 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::f24258113ca6e8e454b7cc30630663b9 https://doi.org/10.1134/s0040601518060071 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........f24258113ca6e8e454b7cc30630663b9 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15556301 00406015 |
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