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On the off-design of a natural gas-fired combined cycle with CO2 capture

Fredriksson Möller, Björn LU ; Genrup, Magnus LU and Assadi, Mohsen LU (2007) In Energy 32(4). p.353-359
Abstract
During the last 15 years cycles with CO, capture have been in focus, due to the growing concern over our climate. Often, a natural gas fired combined cycle with a chemical absorption plant for CO, capture from the flue gases have been used as a reference in comparisons between cycles. Neither the integration of the steam production for regeneration of amines in the combined cycle nor the off-design behaviour of such a plant has been extensively Studied before. In this paper, the integration of steam production for regeneration of the amines is modelled at design load and studied in off-design conditions for a combined cycle. Different ambient conditions and part-load strategies and their influence on the cycle performance are also... (More)
During the last 15 years cycles with CO, capture have been in focus, due to the growing concern over our climate. Often, a natural gas fired combined cycle with a chemical absorption plant for CO, capture from the flue gases have been used as a reference in comparisons between cycles. Neither the integration of the steam production for regeneration of amines in the combined cycle nor the off-design behaviour of such a plant has been extensively Studied before. In this paper, the integration of steam production for regeneration of the amines is modelled at design load and studied in off-design conditions for a combined cycle. Different ambient conditions and part-load strategies and their influence on the cycle performance are also examined. Of particular interest is a novel strategy with the possibility of longer life of gas turbine blading, with marginal loss in efficiency. The off-design performance of the combined cycle is modelled in a rigorous Way using a gas turbine performance deck, while the boiler is calculated using simplified correlations for oft-design heat transfer and pressure drop. The steam turbine calculation is based on verified models for the flow-pressure-efficiency relations, whilst the steam condenser is based oil the HEI method. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
off-design, CO2 capture, combined cycles
in
Energy
volume
32
issue
4
pages
353 - 359
publisher
Elsevier
external identifiers
  • wos:000243741700015
  • scopus:33845637905
ISSN
1873-6785
DOI
10.1016/j.energy.2006.07.022
language
English
LU publication?
yes
id
83f7ebe3-75e0-4949-b034-f899123b13ab (old id 676346)
date added to LUP
2007-12-07 10:50:43
date last changed
2017-11-05 03:40:13
@article{83f7ebe3-75e0-4949-b034-f899123b13ab,
  abstract     = {During the last 15 years cycles with CO, capture have been in focus, due to the growing concern over our climate. Often, a natural gas fired combined cycle with a chemical absorption plant for CO, capture from the flue gases have been used as a reference in comparisons between cycles. Neither the integration of the steam production for regeneration of amines in the combined cycle nor the off-design behaviour of such a plant has been extensively Studied before. In this paper, the integration of steam production for regeneration of the amines is modelled at design load and studied in off-design conditions for a combined cycle. Different ambient conditions and part-load strategies and their influence on the cycle performance are also examined. Of particular interest is a novel strategy with the possibility of longer life of gas turbine blading, with marginal loss in efficiency. The off-design performance of the combined cycle is modelled in a rigorous Way using a gas turbine performance deck, while the boiler is calculated using simplified correlations for oft-design heat transfer and pressure drop. The steam turbine calculation is based on verified models for the flow-pressure-efficiency relations, whilst the steam condenser is based oil the HEI method.},
  author       = {Fredriksson Möller, Björn and Genrup, Magnus and Assadi, Mohsen},
  issn         = {1873-6785},
  keyword      = {off-design,CO2 capture,combined cycles},
  language     = {eng},
  number       = {4},
  pages        = {353--359},
  publisher    = {Elsevier},
  series       = {Energy},
  title        = {On the off-design of a natural gas-fired combined cycle with CO2 capture},
  url          = {http://dx.doi.org/10.1016/j.energy.2006.07.022},
  volume       = {32},
  year         = {2007},
}