The thesis is concerned with an experimental investigation of wet steam flows in a cascade of turbine blading. To obtain nucleation in sub-sonic flows of steam, a supercooled supply is necessary which has been achieved under blow-down conditions. To obtain wet steam, the supercooled steam generated is passed through a venturi before admission to the cascade. To evaluate the influence of droplet size two separate venturis have been used in the investigation. The literature survey covers the early investigations of condensation in flowing steam, the development of nucleation theory and droplet growth laws. A description of the experimental facility and the improvements introduced to it is given next. The facility is a blow-down steam tunnel constructed for the study of two-dimensional two-phase flows. The instrumentation caters for the measurement of pressure distributions in the venturis, blade surfaces, blade mid-passage, upstream and downstream of the cascade as well as wake traverse downstream of the cascade.
| Identifer | oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:643571 |
| Date | January 1994 |
| Creators | Mashmoushy, Hisham Ahmad |
| Publisher | University of Birmingham |
| Source Sets | Ethos UK |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
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