Flow characteristics in nuclear steam turbine blade passage
Book
·
OSTI ID:129213
- Korea Inst of Nuclear Safety, Taejon (Korea, Republic of). Safety review and Assessment Div.
- Korea Inst. of Machinery and Metals, Taejon (Korea, Republic of)
- Kyungpook National Univ., Taegu (Korea, Republic of). Mechanical Engineering Dept.
The rapid expansion of condensable gas such as moist air or steam gives rise to nonequilibrium condensation. As a result of irreversibility of condensation process in the nuclear steam turbine blade passage, the entropy of the flow increases, and the efficiency of the turbine decreases. In the present study, in order to investigate the flow characteristics of moist air in two-dimensional turbine blade passage which is made from the configuration of the last stage tip section of the actual nuclear steam turbine moving blade, the static pressures along both pressure and suction sides of blade are measured by static pressure taps and the distribution of Mach number on both sides of the blade are obtained by using the measured static pressure. Also, the flow field is visualized by a Schlieren system. From the experimental results, the effects of the stagnation temperature and specific humidity on the flow properties in the two dimensional steam turbine blade passage are clearly identified.
- OSTI ID:
- 129213
- Report Number(s):
- CONF-950740--; ISBN 0-7918-1342-8
- Country of Publication:
- United States
- Language:
- English
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