Computational fluid dynamics analysis of a steam power plant low-pressure turbine downward exhaust hood
- Northrop-Grumman Corp., Bethpage, NY (United States). Advanced Technology and Development Center
- Consolidated Edison Co. of New York, Inc., NY (United States)
- Westinghouse Electric Corp., Orlando, FL (United States)
Computational fluid dynamics (CFD) methods are applied to the analysis of a low-pressure turbine exhaust hood at a typical steam power generating station. A Navier-Stokes solver, capable of modeling all the viscous terms, in a Reynolds-averaged formulation, was used. The work had two major goals. The first was to develop a comprehensive understanding of the complex three-dimensional flow fields that exist in the exhaust hood at representative operating conditions. The second was to evaluate the relative benefits of a flow guide modification to optimize performance at a selected operating condition. Also, the influence of simulated turbine discharge characteristics, relative to uniform hood entrance conditions, was evaluated. The calculations show several interesting and possibly unique results. They support use of an integrated approach to the design of turbine exhaust stage blading and hood geometry for optimum efficiency.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 207720
- Journal Information:
- Journal of Engineering for Gas Turbines and Power, Vol. 118, Issue 1; Other Information: PBD: Jan 1996
- Country of Publication:
- United States
- Language:
- English
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