News

FAC Risk Assessment and Inspection Plan

Flow-Accelerated Corrosion (FAC) or Erosions-Corrosion remains a common cause of failure in HRSGs and conventional boilers, yet the underlying causes and solutions have been well understood for more than 25 years.  The two factors influencing the susceptibility to FAC are: a) Unit Design and b) Process Conditions. It is important to know how FAC-prone your HRSG or boiler design are, this will help you optimise your operating conditions to suit that design.

When assessing design factors, the primary question is whether the HRSG/boiler tubes and pipes' geometries and materials are suited to their flow profiles across the range of operating load cases.  Operational factors are primarily concerned with assuring good control of water chemistry parameters (pH, dissolved oxygen or ORP, iron levels). 

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Covered Piping System Maintenance Programme

Since 2007 the ASME B31.1 Power Piping Code has included Chapter VII, establishing mandatory requirements for Operation and Maintenance.  The key elements of this program are discussed here, and require that Operators outline a detailed maintenance plan for their Covered Piping Systems (CPSs).  The Code also requires that operators perform regular Condition Assessments of their CPS ensuring that relevant degradation mechanisms are being covered. 

Read more: Covered Piping System Maintenance Programme

New Dubai Office Open

Tetra Engineering has announced the opening of its new office in Dubai. We expect the improved proximity to our clients in the region will enable us to continue in delivering a better service. See our contact page for more details.

Under-deposit Corrosion Presentation at ASME POWER 2014

At the 2014 ASME Power Conference in Baltimore, David Moelling of Tetra Engineering presented the recent research paper titled: Role of Boiling Mode and Rate in Formation of Waterside Deposits in Heat Recovery Steam Generator Evaporator Tubes, written by David Moelling and James Malloy. 

The paper discusses results from research in the theory of boiling mode and deposit formation, employing advanced thermal simulation of evaporation in real boiler models, and compares results with actual experiences in recent years. 

See the abstract to the paper below:

Read more: Under-deposit Corrosion Presentation at ASME POWER 2014

Tetra Releases 2014 HRSG Training Courses

Tetra Engineering will once again be offering its popular HRSG training courses at a number of locations this year.  Currently scheduled are sessions at several locations in the US as well as in France and in Dubai.

Please click here for the full list of courses, dates, and locations