Secure and reliable power generation

Valmet DNA Heat Exchanger Performance Monitoring

The Valmet DNA Heat Exchanger Performance Monitoring application provides power plant personnel with valuable information about the performance, condition and operating efficiency of various heat exchangers – both in real time and retrospectively. Full-scale heat exchanger monitoring plays a significant role in reducing power plant heat losses and, therefore, can significantly improve its economy.

Automated system for monitoring heat exchanger performance

The Valmet DNA Heat Exchanger Performance Monitoring application continuously calculates, displays and stores main heat exchanger performance parameters. It provides calculations for such heat exchangers as steam condensers, HP and LP preheaters and district heat exchangers.

The calculated performance parameters include:

  • Effect [MW]
  • Heat transfer coefficient (for condenser) [W/°C]
  • Temperature efficiency (for heat exchangers) [ - ]
  • Terminal temperature difference [°C] or, alternately log mean temperature difference [°C]

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Ensuring highest possible power plant availability

The application helps power plant maintenance and operating personnel detect potential problems in heat exchanger operation and analyze those that have occurred. This prevents failures proactively – before they cause unpredicted shutdowns. Additionally, extensive storage of history data enables long-term monitoring of gradual component deterioration and mechanical failures, for significantly improved maintenance planning.

Trend displays in clear graphical format

The Valmet DNA Boiler Sootblowing Manager features a high-level user interface for easy analysis of available data.

The solution is seamlessly linked to the overall automation applications, guaranteeing efficient collaboration between plant management and plant control.

Would you like to find out more about our performance solutions?

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