Advanced

Sensitivity analysis of transient compressor operation behaviour in SOFC-GT hybrid systems

Hildebrandt, Andre LU and Assadi, Mohsen LU (2005) ASME Turbo Expo 2005 - Gas Turbie Technology: Focus for the Future In Proceedings of the ASME Turbo Expo 5. p.315-323
Abstract
This paper presents a sensitivity analysis of unsteady-state SOFC-GT-HS operation based on two different characteristic maps of centrifugal compressor taken from open literature and scaled by the law of similitude to match the design point of the Hybrid System. The system layout under investigation is a pressurised type comprising a low and high temperature recuperator. Computations are based on a one-dimensional finite element model of planar high temperature SOFC, which is validated against open literature. The reduced Moore and Greitzer model is used for compressor modelling. Calculation results of the coupled SOFC-GT-Hybrid System show that unsteady-state part-load operation is sensitive to the characteristics of compressor speed-lines... (More)
This paper presents a sensitivity analysis of unsteady-state SOFC-GT-HS operation based on two different characteristic maps of centrifugal compressor taken from open literature and scaled by the law of similitude to match the design point of the Hybrid System. The system layout under investigation is a pressurised type comprising a low and high temperature recuperator. Computations are based on a one-dimensional finite element model of planar high temperature SOFC, which is validated against open literature. The reduced Moore and Greitzer model is used for compressor modelling. Calculation results of the coupled SOFC-GT-Hybrid System show that unsteady-state part-load operation is sensitive to the characteristics of compressor speed-lines but also to the load change operation procedure. Copyright (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
One-dimensional finite element models, Centrifugal compressors, Hybrid systems, Compressor modeling
in
Proceedings of the ASME Turbo Expo
volume
5
pages
315 - 323
publisher
American Society Of Mechanical Engineers (ASME)
conference name
ASME Turbo Expo 2005 - Gas Turbie Technology: Focus for the Future
external identifiers
  • WOS:000243376900033
  • Scopus:27744602758
language
English
LU publication?
yes
id
b2026ee7-3739-4822-ac5d-fd6a5e9cfe5d (old id 615605)
date added to LUP
2007-11-25 11:42:25
date last changed
2017-01-01 07:57:13
@inproceedings{b2026ee7-3739-4822-ac5d-fd6a5e9cfe5d,
  abstract     = {This paper presents a sensitivity analysis of unsteady-state SOFC-GT-HS operation based on two different characteristic maps of centrifugal compressor taken from open literature and scaled by the law of similitude to match the design point of the Hybrid System. The system layout under investigation is a pressurised type comprising a low and high temperature recuperator. Computations are based on a one-dimensional finite element model of planar high temperature SOFC, which is validated against open literature. The reduced Moore and Greitzer model is used for compressor modelling. Calculation results of the coupled SOFC-GT-Hybrid System show that unsteady-state part-load operation is sensitive to the characteristics of compressor speed-lines but also to the load change operation procedure. Copyright},
  author       = {Hildebrandt, Andre and Assadi, Mohsen},
  booktitle    = {Proceedings of the ASME Turbo Expo},
  keyword      = {One-dimensional finite element models,Centrifugal compressors,Hybrid systems,Compressor modeling},
  language     = {eng},
  pages        = {315--323},
  publisher    = {American Society Of Mechanical Engineers (ASME)},
  title        = {Sensitivity analysis of transient compressor operation behaviour in SOFC-GT hybrid systems},
  volume       = {5},
  year         = {2005},
}