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As combined cycle gas turbine plants are called upon to play a larger and more flexible role in the generation mix, it’s important to schedule a comprehensive assessment of major components at key intervals to ensure reliable operation.
Waterside Deposits in evaporator tubes have been an issue in steam generators as long as boilers have been used. Substantial experience in deposit formation and management has been gained in conventional goal and oil/gas boilers over time. The role of boiling modes in the steam generator tubes is very critical to areas of deposit formation.
Normal boiler and Heat Recovery Steam Generator Operation have required a complete purge of the boiler by fresh air before startup firing to remove potentially explosive fuels and other substances from the boiler/HRSG. For power plants in daily two-shift cycling (or more frequent starts) this not only adds time to the startup sequence but can impose significant thermal stresses on hot components exposed to cooler purge air.
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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Thermohydraulic simulations can provide detailed heat recovery steam generator (HRSG) data to help determine the root cause of failures, predict the degree of wear from various mechanisms, and assess the overall thermal efficiency of the boilers. In this article, the results obtained from three case studies are presented to show the real-world benefits obtained through thermodynamic simulations.
Quality Achieved vs. Quality Perceived The quality of the thousands of factory and field welds present in pressure part modules is critical for assuring reliable operation over the life of the plant. But how are these welds performed and checked? Much relies on the quality system of the fabricator, and for many years some companies have been paying only lip service to quality while avoiding the associated costs. It is very easy to tick a box. Let’s take a step back. Companies can be perceived as good, bad, or somewhere in between by potential clients. Rightly or wrongly, quality systems are generally seen as a way for a company to show that it is on the good end of the scale.
A unique opportunity to update your knowledge on your power plant’s Capital Equipment. Hear from industry-leading experts on Gas Turbines, HRSGs, Fluidised Bed Boilers and Steam Turbines. Sharpen your skills with the latest information on inspecting, analysing and maintaining your critical power generation assets.
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