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Volume 113 (2003)

CONTENTS

No. 113, 2003, 191-200

The improvement of the hot-wire anemometer measurement procedure in the LP stage of a full scale steam turbine
PAVEL JONAS, OTON MAZUR, VRATISLAV REHAK,, VALCAV URUBA

Abstract

The method of investigation of the flow structure and correlation velocity/temperaturę fields in the LP stage using a CTA anemometer is outlined in the contribution. The arrangement of the rotary slanted hot-wire probe equipped with a resistance thermometer and pressure transducer is described that makes possible to correct the CTA-readings from the effect of the steam state small variations and from te disturbances caused by the impacts of large water droplets on the heated wire. Next some details of the synchronized sampling of CTA output voltage and the evaluation of the results are presented.

Keywords:

CTA nanemometry, wet-steam flow structure, LP-stage of full scale turbine
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