Analysis of the operation of the steam turbine at rated parameters.
Journal Title: Наукові праці Донецького Національного Технічного Університету серія: Електротехніка і Енергетика - Year 2018, Vol 1, Issue 1
Abstract
To describe the turbine workflow, we consider the design of the flow section of a multi-stage steam turbine of a condensing type. The turbine flow section consists of degrees. Dependencies depending on the direction of flow are divided into: axial, radial-axial, diagonal and others. Since the object of study is a turbine, the couple moves along the surface, close to cylindrical. The flow of a pair with a cylindrical surface is described by axial degrees, therefore, only these degrees will be considered further. Normal operation of steam turbines depends on a design-based choice of the mode of operation at which the maximum economic efficiency of the turbine installation is achieved. Special attention is paid to power units with turbines with a unit capacity of 200 MW, issued by the Leningrad Metal Plant. There are 43 power units with K-200-130 turbines for heat in Ukraine’s power plants. The resource of most of these turbines is fully produced or is nearing completion. In connection with the extension of the life of a power unit with 200 MW turbines, in some cases, they are operated at lower rated parameters and loads, which leads to increased fuel costs and partial loss of power.
Authors and Affiliations
Y. HARMASH, Oleksandr Kollarov
Keywords
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