Behaviour of a HRSG Steam System During Flying Switch-Over to Fresh Air Operation After Gas Turbine Trip PUBLIC ACCESS

[+] Author Affiliations
M. J. J. Linnemeijer

Stork Ketels BV, Hengelo, The Netherlands

Paper No. 96-TA-052, pp. V001T04A005; 17 pages
  • ASME 1996 Turbo Asia Conference
  • ASME 1996 Turbo Asia Conference
  • Jakarta, Indonesia, November 5–7, 1996
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7877-4
  • Copyright © 1996 by ASME


The reliability and availability of a HRSG steam system can be improved by providing a flying switch over into fresh air operation in case of failure of the gas turbine.

The flying switch over can be designed for a planned switch over in case of no availability of the gas turbine as well for a unplanned switch over in case of gas turbine trip.

Especially during the unplanned switch over the pressure of the steam system will decrease due to a temporarily lack of heat input on the HRSG.

The paper will describe different switch over arrangements and their influences on the pressure of the steam system during the switch over.

Copyright © 1996 by ASME
This article is only available in the PDF format.



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