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2 Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka

2 2008

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Control stage flow. Part II. Turbine low load

Lampart P., Szymaniak M

Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka

2008

nr 133

207--212

The second part of the paper is devoted to the operation of the control stage for the turbine low load conditions. This refers to the situation when only two (out of four) control valves are open. The circumferential non-uniformity of flow patterns and rotor blade forces are calculated, discussed and compared with those of the nominal turbine load.

Control stage flow. Part I. Turbine nominal load

Lampart P., Szymaniak M, Kwidziński R

Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka

2008

nr 133

201--206

The partial admission control stage of a 200 MW steam turbine is studied using CFD and a 3D full-geometry model. The first part of the paper is devoted to the operation of the turbine at nominal load conditions when three (out of four) control valves are fully open, the forth valve is partly open. The circumferential non-uniformity of flow patterns and rotor blade forces are calculated and discussed.