TRANSMISSION AND DISTRIBUTION
ELECTRIC ACTUATORS BOOST HEAT SUPPLY EFFICIENCY
Retrofitting Auma electric actuators maximised process efficiency in Nokianvirran Energia biomass power plant
Auma’s work with a biomass power plant in Finland sees electric actuators automating valves that were previously manually operated
B
y retrofitting Auma electric actuators, the Nokianvirran Energia biomass power plant in Finland significantly
increased its degree of automation and thus maximised process efficiency.
STEAM COGENERATION PLANT BENEFITS FROM AUTOMATION Nokianvirran Energia Oy built a steam cogeneration plant in Nokia in 2016. The plant uses renewable wood-based fuels from the region. It produces process steam for a paper mill and a tyre manufacturing plant, as well as district heating for a large energy company in the region. The plant operator was facing the
challenge that it took around 30 minutes to start up the boiler from zero to full power, using valves that had to be operated manually. The desire for more automation meant that Auma SA multi-turn actuators with intelligent AC 01.2 actuator controls were added during a plant overhaul in
2022. The actuators now enable the system to be started up in just six minutes.
PROFIBUS INTERFACES IN THE ACTUATOR CONTROLS Thanks to Profibus interfaces in the actuator controls, the actuators are remotely controlled with Profibus DP from the central control room. In areas subject to heavy vibration or high process temperatures, the actuator controls were mounted on wall brackets at a distance from the actuators to protect the electronics.
AUMA PROJECT MANAGEMENT The Auma team took care of the entire project management, from on-site data acquisition to planning, order processing, installation and commissioning. Thanks to tailor- made adapters the actuators could be perfectly adapted to the existing valves with only minor field modifications required.
By retrofitting previously manually
operated valves with electric Auma actuators, the degree of automation at the Nokianvirran Energia biomass power plant, Finland, was significantly increased.
For more information visit:
retrofit.auma.com
An Auma SA multi-turn actuator with intelligent AC 01.2 actuator controls
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