Dynamic Analysis of Compressor Trips in the Snøhvit LNG Refrigerant Circuits
Compressors are key components in the refrigerant circuits of the Snøhvit LNG plant and contain large amounts of mechanical energy. Thus it is imperative that the control system is able to keep the compressor out of surge in case of driver trip. A dynamic process simulator describing the total LNG p...
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ftsintef:oai:sintef.brage.unit.no:11250/2431633 2023-05-15T18:20:12+02:00 Dynamic Analysis of Compressor Trips in the Snøhvit LNG Refrigerant Circuits Schjølberg, Ingrid 2008 application/pdf http://hdl.handle.net/11250/2431633 eng eng 53rd ASME Turbo Expo 2008, Berlin, June 9-13, 2008 urn:isbn:9780791843178 http://hdl.handle.net/11250/2431633 cristin:1273904 679-688 Chapter 2008 ftsintef 2021-08-04T11:59:19Z Compressors are key components in the refrigerant circuits of the Snøhvit LNG plant and contain large amounts of mechanical energy. Thus it is imperative that the control system is able to keep the compressor out of surge in case of driver trip. A dynamic process simulator describing the total LNG plant has been developed by Kongsberg Process Simulation and the simulator has been applied in the engineering phase for the design and process verification. The simulator has also been used to verify the robustness of the closed loop refrigerant circuits and to verify that the compressors are sufficiently protected after a driver trip. The presented work demonstrates the value of dynamic simulations for verification of compressor protection systems. In addition it shows the importance of using correct data for polar inertia of the rotating equipment, as well as the opening and dead times of the anti-surge valves. It is recommended to include a sensitivity analysis of these parameters as part of plant verification studies. Dynamic Analysis of Compressor Trips in the Snøhvit LNG Refrigerant Circuits Book Part Snøhvit SINTEF Open (Brage) Kongsberg ENVELOPE(19.082,19.082,69.123,69.123) |
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Open Polar |
collection |
SINTEF Open (Brage) |
op_collection_id |
ftsintef |
language |
English |
description |
Compressors are key components in the refrigerant circuits of the Snøhvit LNG plant and contain large amounts of mechanical energy. Thus it is imperative that the control system is able to keep the compressor out of surge in case of driver trip. A dynamic process simulator describing the total LNG plant has been developed by Kongsberg Process Simulation and the simulator has been applied in the engineering phase for the design and process verification. The simulator has also been used to verify the robustness of the closed loop refrigerant circuits and to verify that the compressors are sufficiently protected after a driver trip. The presented work demonstrates the value of dynamic simulations for verification of compressor protection systems. In addition it shows the importance of using correct data for polar inertia of the rotating equipment, as well as the opening and dead times of the anti-surge valves. It is recommended to include a sensitivity analysis of these parameters as part of plant verification studies. Dynamic Analysis of Compressor Trips in the Snøhvit LNG Refrigerant Circuits |
format |
Book Part |
author |
Schjølberg, Ingrid |
spellingShingle |
Schjølberg, Ingrid Dynamic Analysis of Compressor Trips in the Snøhvit LNG Refrigerant Circuits |
author_facet |
Schjølberg, Ingrid |
author_sort |
Schjølberg, Ingrid |
title |
Dynamic Analysis of Compressor Trips in the Snøhvit LNG Refrigerant Circuits |
title_short |
Dynamic Analysis of Compressor Trips in the Snøhvit LNG Refrigerant Circuits |
title_full |
Dynamic Analysis of Compressor Trips in the Snøhvit LNG Refrigerant Circuits |
title_fullStr |
Dynamic Analysis of Compressor Trips in the Snøhvit LNG Refrigerant Circuits |
title_full_unstemmed |
Dynamic Analysis of Compressor Trips in the Snøhvit LNG Refrigerant Circuits |
title_sort |
dynamic analysis of compressor trips in the snøhvit lng refrigerant circuits |
publishDate |
2008 |
url |
http://hdl.handle.net/11250/2431633 |
long_lat |
ENVELOPE(19.082,19.082,69.123,69.123) |
geographic |
Kongsberg |
geographic_facet |
Kongsberg |
genre |
Snøhvit |
genre_facet |
Snøhvit |
op_source |
679-688 |
op_relation |
53rd ASME Turbo Expo 2008, Berlin, June 9-13, 2008 urn:isbn:9780791843178 http://hdl.handle.net/11250/2431633 cristin:1273904 |
_version_ |
1766197696969834496 |