Articles

Strategies for Inspecting HRSGs in Two-Shift and Low-Load Service

Inspections of more than 500 units over the past 10 years reveals common challenges faced by mid-life HRSGs, particularly those used in combined cycle plants to offset renewable generation and other aggressive operating strategies.

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We are hiring

We are looking to hire candidates at different experience levels to be based at our European office, which is in the Sophia-Antipolis technology park about 20 minutes west of Nice, France.

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NFPA 85 HRSG Purge Credit Options, Benefits & ROI - Feb 2019 501F

Peter Jackson, President of Tetra Engineering Group was invited to present Tetra's experience on Purge Credit implementations at the 501F User Conference this February (2019). Combined cycle power plants use fuels and other materials that can cause fires or explosions in the combustion turbine, ducting, or heat recovery steam generator. Purging that equipment with ambient air to displace residual combustible gases before starting is a normal safety practice. But when plants are cycled, the disadvantages of purging often outweigh the advantages. 

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Fall 2019 Course Offerings - Middle East

Join us in either Dubai or Karachi this fall for HRSG & Waste Heat Boiler training!

Lire la suite : Fall 2019 Course Offerings - Middle East

Boiler Process Modelling and Simulation

Tetra Engineering provides a full-scope service for the modelling and operation analysis of all types of natural or forced circulation Power Boiler and HRSGs, including supercritical and once-through designs.  This can be integrated into a full plant model to incorporate the steam turbine and steam cycle balance of plant.

The level of detail can be adapted to focus on local effects (e.g. row-to-row temperature differences) and can be steady-state or time-dependent, the latter to model transients such as startups.  The state-of-the-art Power Plant Simulator and Designer™ (PPSD) software package developed by KED software is the primary tool for this work.  Frequent applications at Tetra Engineering include:

  • Calculating steam cycle efficiency (heat balance) according to ASME PTC or other codes
  • Determining natural circulation rates in support of FAC risk assessment
  • Generating metal temperature profiles for inputs to finite-element stress calculation
  • Assessing the impact of design changes or modification to original plant operating regime

Contact James Malloy (EMEA) Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser. or David Moelling (Americas) Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser. for more information about thermal simulations.