title: ÐÐ¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÑÐµÐ½Ð¸Ñ Ð² Ð¿ÑÐ¾ÑÐ¾ÑÐ½Ð¾Ð¹ ÑÐ°ÑÑÐ¸ Ð±Ð»Ð¾ÐºÐ° Â«ÑÑÑÐ¿ÐµÐ½Ñ â Ð´Ð¸ÑÑÑÐ·Ð¾Ñ â Ð¿Ð°ÑÑÑÐ±Ð¾ÐºÂ» Ð¦ÐÐ Ð¼Ð¾ÑÐ½Ð¾Ð¹ Ð¿Ð°ÑÐ¾Ð²Ð¾Ð¹ ÑÑÑÐ±Ð¸Ð½Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Modeling of the flow in the flow section of the "step - diffuser - nozzle" block of the lpc of a powerful steam turbine
Creators: name: ÐÑÐµÐºÐ¾ÑÐºÐ¸Ð½Ð°, ÐÐ½Ð°ÑÑÐ°ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð¿Ð°ÑÐ¾Ð²Ð°Ñ ÑÑÑÐ±Ð¸Ð½Ð°
ÑÐ¸Ð»Ð¸Ð½Ð´Ñ Ð½Ð¸Ð·ÐºÐ¾Ð³Ð¾ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ
Ð²ÑÑ Ð¾Ð´Ð½Ð¾Ð¹ ÑÑÐ°ÐºÑ
Ð¿Ð¾ÑÐµÑÐ¸ Ð¿Ð¾Ð»Ð½Ð¾Ð³Ð¾ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ
ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
steam turbine
low pressure cylinder
exhaust path
full pressure loss
numerical simulation

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description: The subject of the graduate qualification work is Â«Modeling the flow in the flowing part of the unit âStep - Diffuser - Exhaust nozzleâ low-pressure cylinder of a powerful steam turbineÂ». The aim of the work is to justify the use of the geometry of the exhaust path, different from the standard design of the unit "Diffuser - Exhaust nozzle" with oneway discharge into the capacitor, to reduce the coefficient of internal losses of the exhaust path. The theoretical aspects of the layout and design of the unit "Diffuser - Exhaust nozzle" of powerful steam turbines are considered. Numerical simulation of three versions of the calculation model of the steam turbine exhaust path was carried out: the base version of the exhaust path, created on the basis of the K-300-240-2 prototype, having internal spacer rods and guide plates, a simplified version of the EP, in which all the elements blocking the flow part are missing, unit "Diffuser - Exhaust nozzle" with an axisymmetric eight-sided exhaust with nozzles of various sections. The analysis of the results of a numerical experiment, the validation of the integrated aerodynamic parameters according to the results of an experimental study of the exhaust path of the basic design are carried out, and it is concluded that it is advisable to further study the non-standard version of the design of the exhaust path, both numerical and experimental.