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Tetra In Action #10 - November, 2017

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2018 Spring/Summer Training Schedule Announced

Tetra Engineering announces the 2018 spring/summer training schedule! Join us in Deer Park Utah, USA in May or Sophia-Antipolis, France in June for HRSG Combined Cycle training. See our training page for more details.        

Recent Projects: Increasing HRSG Thermal Efficiency

The Power Plant Simulator & Designer (PPS&D) provides state-of-the-art capabilities for modeling and simulating the operation of nearly any type of thermal power plant. Originally developed by KED GmbH in Germany for use by boiler OEMs in their detailed design work, PPSD has since been used by numerous clients worldwide for simulating the operation of many types of boilers and thermal power plants.  Using this powerful tool, Tetra can model power plants and use simulations to assess the impact of modifications done to equipment, or operating conditions. Recently, Tetra used this method to evaluate the impact of lowering the approach temperature of the LP Economiser for one of our clients. In addition to ensuring safe operations, by looking at potential steaming in the economizer and the risk of Flow-Accelerated Corrosion (FAC), it was found that the overall HRSG efficiency could be increased by 1% leading to an increase in power output for the steam turbine of 1MW. The overall efficiency increase is estimated to lead to an increase in revenue by over 400.000 EURO/year.    For more information about our Simulation Services contact us.        

Technical Tidbits from the HRSG Inspection Planning Guide    

The inspection of drums is a key element in determining the general condition of the waterside pressure boundary of the HRSG components and the quality of the water treatment program. They are a on what the inside of the water-filled or steam and water-filled tubes and headers in the various pressure circuits (HP, IP or LP) might look like. Basic inspection is visual, yet often complemented by UT, and PT/MT examinations.One of the key items of interest is surface passivation. The HP drum should typically have a dark grey adherent surface layer, characteristic of magnetite, below the maximum waterline. Above the maximum water line there may be some light red coloration, indicating a mix of magnetite and hematite. Yet surface color can deceive, drums with “abnormal” color may simply reflect a specific water chemistry and process condition history. The experience of the inspector comes into play in these cases, to decide whether what is observed is indicative of a real problem or simply reflects a harmless difference.    If you are interested in the full version of the HRSG Inspection Planning Guide (2nd edition) contact us.        

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Power Plant Simulator & Designer Package (PPSD) Version 19.1.
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Power Plant Simulator & Designer Package (PPSD) Version 19.1.

Tetra Engineering and KED are pleased to announce the release of the Power Plant Simulator & Designer Package (PPSD) Version 19.1. PPSD is a state of the art design and analysis/troubleshooting package for nearly any type of thermal power plant. It includes the capability for both steady state and dynamic simulation and analysis and is developed by KED in Germany.

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Thermal Plant Simulation
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Thermal Plant Simulation

How a High Fidelity Thermal Plant Simulation Package Can Help Your Engineering Group Keep Your Plants at Peak Productivity?

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Boiler Process Modelling and Simulation
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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.

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