title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Ð½Ð°Ð²Ð°Ð»Ð° ÑÐ¾Ð¿ÐµÐ» Ð² ÑÑÑÐ¿ÐµÐ½ÑÑ ÐÐÐ Ð½Ð° ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ Ð¼Ð°Ð»Ð¾ÑÐ°ÑÑ Ð¾Ð´Ð½ÑÑ ÑÑÑÐ±Ð¸Ð½
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: Research on the effect of a pile of nozzles in the LPI steps on the efficiency of low-flow turbines
Creators: name: ÐÐµÑÑÐ°ÑÐ¾Ð²Ð°, ÐÐ°Ð»ÐµÑ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: ÑÑÑÐ±Ð¸Ð½Ð°
Ð¼Ð°Ð»Ð¾ÑÐ°ÑÑ Ð¾Ð´Ð½Ð°Ñ ÑÑÑÐ±Ð¸Ð½Ð°
ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ
ÑÐ¾Ð¿Ð»Ð¾Ð²Ð¾Ð¹ Ð°Ð¿Ð¿Ð°ÑÐ°Ñ
Ð¾ÑÐµÑÐ¸Ð¼Ð¼ÐµÑÑÐ¸ÑÐ½Ð¾Ðµ ÑÐ¾Ð¿Ð»Ð¾
Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
turbine
low consumption turbine
efficiency
nozzle device
axisymmetric nozzle
mathematical modeling

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description: Theme of the final qualification work: "Research on the effect of a pile of nozzles in the LPI steps on the efficiency of low-flow turbines." This work is devoted to the study of the influence of the geometric parameters of microturbine plants, namely the nozzle pile, on the internal efficiency of the installation and the methodology for calculating installations of this type using mathematical models. During the study, the following tasks were solved: a. Creation of three-dimensional models of LPI stages with a different number of nozzles per stage; b. Three-dimensional computational models have been developed using the modern ANSYS CFX software package; c. The calculation of the investigated options for turbine stages with the determination of the main characteristics; d. Comparison of the final results. The work was carried out on the basis of the development of the Department of Turbine Engineering LPI, a study was also conducted of foreign analogues. According to the results of the studies, it can be concluded that a negative pile, that is, a distance between the nozzles and the impeller, significantly increases the efficiency of the turbine stage, internal efficiency and power increase, and vice versa, a positive pile on the contrary reduces the efficiency of the stage.