... Abstract Vibration-induced problems on Heat Recovery Steam Generators (HRSGs) are observed at numerous plants. Here the focus is on vibration caused by the gas turbine exhaust gas, which can lead in some cases to significant damage and/or failures to the internal pressure parts (piping, tube...

... of evaporator in HRSG could be avoided as long as the relevant provisions of “Guidelines of chemical supervision for combined cycle power plants” (DL/T 1717-2017) were strictly implemented during normal operation of boiler, standby maintenance and water pressure test after overhaul. combined-cycle gas...

...ON THE USE OF COMPUTATIONAL FLUID DYNAMICS (CFD) TO ASSESS THE IMPACT OF LOW-LOAD OPERATIONS ON HEAT RECOVERY STEAM GENERATOR (HRSG) TUBE MODULE INTEGRITY Andreas Fabricius1, Tetra Engineering EMEA Sophia-Antipolis, France David S. Moelling Tetra Engineering Group, Inc. Simsbury, Connecticut, USA...

...FAILURE ANALYSIS OF SA-213 T91 HRSG SUPERHEATER TUBE WELD Peter S. Jackson1, PhD, P.E, Tetra Engineering Group, Inc. Simsbury, Connecticut, USA Alexandria Wholey Tetra Engineering Group, Inc. Simsbury, Connecticut, USA Andreas Fabricius2 Tetra Engineering EMEA Sophia-Antipolis, France ABSTRACT...

... 25 11 2008 There have been no generally agreed upon practices regarding preoperational chemical cleaning of new heat recovery steam generators (HRSGs). Some have been cleaned only with warm detergent solutions while others are cleaned using alkaline detergents followed by iron oxide...

... 28 10 2008 Many combined cycle plants operate only during peak demand hours and start/stop at least once a day, Exposure of the HRSG to the repeated thermal gradients experienced during start-up has raised questions about fatigue durability. Additionally, portions of the superheater...