Abstract
The aim of this paper is to introduce the experimental data of the wetness distribution obtained in the year 2015 in front of and behind the last stage of the 1000MW steam turbine in the power plant Temelin. Two different optical probes developed at Czech Technical University were used. For the first time in the Czech Republic pneumatic and optical measurement of the wet steam flow field in front of the last stage of a nuclear power-station steam turbine was provided. This unique measurement opportunity provided lots of new information for the manufacturer and operator of the steam turbine and valuable experimental data for the phase transition modelling in the wet steam flow. The experimental measurement was done in cooperation with Doosan Skoda Power s.r.o.
Highlights
IntroductionMeasurements of the wetness distribution along the last blades were obtained [1] by Czech Technical University in Prague (CTU) in 2014 as part of a guarantee measurement at block 1. of the power plant Temelín (ETE), newly equipped with an enhanced low pressure part (LP) of the steam turbine
Measurements of the wetness distribution along the last blades were obtained [1] by Czech Technical University in Prague (CTU) in 2014 as part of a guarantee measurement at block 1. of the power plant Temelín (ETE), newly equipped with an enhanced low pressure part (LP) of the steam turbine.In 2015, with the support of all concerned partners we extended the measurement in front of the last stage
The aim of this paper is to introduce the experimental data of the wetness distribution obtained in the year 2015 in front of and behind the last stage of the 1000MW steam turbine in the power plant Temelín
Summary
Measurements of the wetness distribution along the last blades were obtained [1] by Czech Technical University in Prague (CTU) in 2014 as part of a guarantee measurement at block 1. of the power plant Temelín (ETE), newly equipped with an enhanced low pressure part (LP) of the steam turbine. Measurements of the wetness distribution along the last blades were obtained [1] by Czech Technical University in Prague (CTU) in 2014 as part of a guarantee measurement at block 1. Of the power plant Temelín (ETE), newly equipped with an enhanced low pressure part (LP) of the steam turbine. (DSP) prepared the new measurement ports in front of the last stage of the LP for the insertion of the pneumatic and optical probes. At the turn of August/September in 2015 the measurement process began on the 3rd LP part of the ETE steam turbine while boosting the performance during the nominal operating conditions. DSP performed the initial measurement of the flow field with the pneumatic probe and CTU simultaneously carried out parallel optical measurements of the wet steam liquid phase structure
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