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Metso DNA Gas Turbine Performance Monitoring

The Metso DNA Gas Turbine Performance Monitoring (DNA Gas Turbine Monitoring) application calculates, stores and displays the main performance parameters that indicate condition and operating efficiency of gas turbines. The calculations are based on gas turbine heat balance and built in accordance with the appropriate ASME standards.

The storing of history values enables long term reporting and trending of performance parameters thus helping to detect gradual changes in gas turbine performance.

Introduction

Meeting the growing requirements for cost-effective and undisturbed operation in today’s economical environment drives power plants to reach for the best possible performance and higher availability. Power plants can no longer afford to operate without knowing the exact gas turbine performance at all times or without taking immediate actions when problems occur. Even a minor decrease in gas turbine efficiency causes significant financial losses in production.

DNA Gas Turbine Monitoring - a Metso DNA Plant Management application* - provides the power plant maintenance and operating personnel with valuable information about the performance, condition and operating efficiency of gas turbines both in real time and historically.

The user interface of the application consists of customized display(s) and report(s) containing the measured and/or calculated data. All calculations are based on the existing instrumentation.

DNA Gas Turbine Monitoring is a standardized application that can be applied to all commonly used manufacturers’ gas turbines as well as different gas turbine models. Openness and flexibility ensure that the application can be customized for each individual customer, taking into account the specific features of the gas turbine in question.

Benefits

The DNA Gas Turbine Monitoring application provides the power plant maintenance and operating personnel with a tool that helps to detect potential problems in the gas turbine operation and analyze the problems that have occurred. This contributes towards proactively responding to failures before they cause unpredicted shutdowns.

The extensive storage of history data also enables long-term monitoring of gradual component deterioration and thus improves scheduling of maintenance.

The DNA Gas Turbine Monitoring application is linked seamlessly to the overall automation applications, which guarantees efficient collaboration between plant management and plant control.




Metso DNA Gas Turbine Performance Monitoring (DNA Gas Turbine Monitoring)

Features

The application includes calculation of the gas turbine heat balance (inputs, outputs and losses) and the main performance parameters, such as turbine inlet temperature, specific fuel consumption, heat rate, thermal efficiency and electrical efficiency.

The calculations are based on generally accepted standards including:

  • DIN 4341. Gas Turbines - Acceptance Tests.
  • ISO 2314. Gas Turbines - Acceptance Tests.
  • ANSI/ASME PTC. 2.2. Gas Turbine Power Plants.
  • ANSI B133.6. Gas Turbine Ratings and Performance.

The user interface of the application collects the performance data of the gas turbine into easy-to-understand and easy-to-work-with report(s) and display(s).

The Gas Turbine Performance Display shows the current status of the gas turbine heat balance together with the gas turbine performance parameters in a visualized form.

The Gas Turbine Exit Temperature Spread Display contains the classification of the temperature spread. If the temperature spread exceeds the permitted limit, the fuel feeding nozzles may be blocked, and it is usually necessary to check the nozzles during the next maintenance shutdown.

Trends - for selected performance values - can be utilized to provide a quick overview of the performance as well as the direction and magnitude of change.

Metso DNA Plant Management *The Metso DNA Plant Management consists of modular applications specifically developed for the energy industry to meet the monitoring, reporting and production optimisation needs of power plants.

The Plant management applications are designed to assist in all areas of power plant operation - from management to production and maintenance.