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.
Reduced power plant heat losses and maintenance needs
Effective detection and analysis of potential or existing issues in heat exchanger operation
Improved maintenance planning with long-term monitoring of component deterioration
Minimized downtime with a proactive approach to failure prevention
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]
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.
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