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Steady-state and transient compressor surge behavior within a SOFC-GT-hybrid system

Hildebrandt, Andre LU ; Genrup, Magnus LU and Assadi, Mohsen LU (2004) 2004 ASME Turbo Expo In Proceedings of the ASME Turbo Expo 2004 7. p.541-550
Abstract
Future pressurized Solid Oxide Fuel Cell- (SOFC) Gas Turbine Hybrid Systems (HS) promise high efficiency at both full-and part-load on account of the upper and lower SOFC temperature limit and the compressor surge line [1]. The compressor surge constraint is also evident in transient HS operation, caused by the slow transients of SOFC temperature imposed by large SOFC plenum, and fast turbo-machinery transients. This paper presents steady-state and unsteady-state HS modeling and calculation results with regard to surge. The transient compressor and SOFC models have been validated against literature. Calculation results of the coupled SOFC-GT-HS reveal a small operational window in case of unmatched turbine and the critical transient... (More)
Future pressurized Solid Oxide Fuel Cell- (SOFC) Gas Turbine Hybrid Systems (HS) promise high efficiency at both full-and part-load on account of the upper and lower SOFC temperature limit and the compressor surge line [1]. The compressor surge constraint is also evident in transient HS operation, caused by the slow transients of SOFC temperature imposed by large SOFC plenum, and fast turbo-machinery transients. This paper presents steady-state and unsteady-state HS modeling and calculation results with regard to surge. The transient compressor and SOFC models have been validated against literature. Calculation results of the coupled SOFC-GT-HS reveal a small operational window in case of unmatched turbine and the critical transient characteristics for HS shut-down. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Blade cracking, Gas turbine hybrid systems (HS), Compressor surge line, Part-load modeling
in
Proceedings of the ASME Turbo Expo 2004
volume
7
pages
541 - 550
publisher
American Society Of Mechanical Engineers (ASME)
conference name
2004 ASME Turbo Expo
external identifiers
  • Scopus:10244279223
language
English
LU publication?
yes
id
b5b05c7d-3c27-46b1-ac89-d2f8094c6aaa (old id 613769)
date added to LUP
2007-11-26 19:38:41
date last changed
2016-10-13 04:38:26
@misc{b5b05c7d-3c27-46b1-ac89-d2f8094c6aaa,
  abstract     = {Future pressurized Solid Oxide Fuel Cell- (SOFC) Gas Turbine Hybrid Systems (HS) promise high efficiency at both full-and part-load on account of the upper and lower SOFC temperature limit and the compressor surge line [1]. The compressor surge constraint is also evident in transient HS operation, caused by the slow transients of SOFC temperature imposed by large SOFC plenum, and fast turbo-machinery transients. This paper presents steady-state and unsteady-state HS modeling and calculation results with regard to surge. The transient compressor and SOFC models have been validated against literature. Calculation results of the coupled SOFC-GT-HS reveal a small operational window in case of unmatched turbine and the critical transient characteristics for HS shut-down.},
  author       = {Hildebrandt, Andre and Genrup, Magnus and Assadi, Mohsen},
  keyword      = {Blade cracking,Gas turbine hybrid systems (HS),Compressor surge line,Part-load modeling},
  language     = {eng},
  pages        = {541--550},
  publisher    = {ARRAY(0x95498d0)},
  series       = {Proceedings of the ASME Turbo Expo 2004},
  title        = {Steady-state and transient compressor surge behavior within a SOFC-GT-hybrid system},
  volume       = {7},
  year         = {2004},
}