Control of the probe influence on the flow field in LP steam turbine
CTU in Prague, Department of Energy Engineering, Technická 4, Prague 6, 166 07, Czech Republic.
a Corresponding author: firstname.lastname@example.org
Published online: 12 May 2017
For measuring the fine droplets properties in the wet steam expanding in the steam turbines the light extinction probes are usually used. The paper presents CFD modelling of the extinction probe influence on the wet steam flow field at the measurement position. The aim is to get a basic information about the influence of the flow field deviation on the measured data, in other words, of necessity to correct the measured data. The basic modelling procedure is described, as well as the supposed simplifications and the factor considering the change in the steam density in the measuring slot of the probe. The model is based on the experimental data that were achieved during the developmental measurements in the steam turbine 1090 MW in the power station Temelín. The experimental measurement was done in the cooperation with the Doosan Škoda Power s.r.o.
© The Authors, published by EDP Sciences, 2017
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