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

fYear

1999

fDate

36281

Firstpage

758

Lastpage

760

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Machines and Drives, 1999. International Conference IEMD '99

Conference_Location

Seattle, WA

Print_ISBN

0-7803-5293-9

Type

conf

DOI

10.1109/IEMDC.1999.769234

Filename

769234