Title :
Designing large air cooled generators to overcome traditional obstacles
Author :
Montgomery, L.W. ; McCown, W.R. ; Karwowski, P.J. ; Nelson, R.J. ; Pipkin, J.R. ; Emery, F.T. ; Warren, B.A.
Author_Institution :
Siemens Westinghouse Power, Orlando, FL, USA
Abstract :
The growth in combustion turbine ratings has been a market driver for larger air-cooled generators. Open-air-cooled (OAC) generators have a capability versus ambient temperature characteristic that closely parallels that of combustion turbines. Combining this with technology developments such as thinner, higher temperature capability high voltage stator insulation, improved ventilation analysis such as computerized fluid dynamics (CFD), and high efficiency filters, have led to economics favoring large air cooled generators over hydrogen for many applications
Keywords :
computational fluid dynamics; cooling; machine insulation; stators; turbogenerators; ventilation; air cooled generators design; capability versus ambient temperature characteristic; combustion turbine ratings; computerized fluid dynamics; cooling air quality; high efficiency filters; high voltage stator insulation; open-air-cooled generators; turbogenerators; ventilation analysis; Character generation; Combustion; Computational fluid dynamics; Fluid dynamics; Insulation; Stators; Temperature; Turbines; Ventilation; Voltage;
Conference_Titel :
Electric Machines and Drives, 1999. International Conference IEMD '99
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5293-9
DOI :
10.1109/IEMDC.1999.769234
