As part of an extensive modernization project, 241 AUMA actuators have been installed in Stockholm's largest combined heat and power plant, Kraftvärmeverk 1. These technologically advanced actuators with Profinet interface are now crucial for the efficient and trouble-free generation of energy and heat from sustainable fuels.
Originally built in 1976 for the use of fossil fuels, the CHP plant was in need of extensive modernization. The retrofit project initiated by Stockholm Exergi, the Swedish capital's energy supplier, aims to extend the plant's service life by a further 20 years. Converting the boiler to run on renewable fuels such as bio-oil will ensure that the power plant can meet Stockholm's increasing demand for energy and heat during the cold winter months.
Renewal through automation
AUMA was awarded the contract to automate 241 valves in the combined heat and power plant. AUMA's portfolio offered the ideal solution for every requirement: SA and SQ actuators with AC 01.2 controls were used, supplemented by gearboxes from the GST and GS series as well as LE linear units for specific applications. AUMA's experts were responsible on site for dismantling the old systems and for the professional installation and commissioning of the new systems.
These actuators control all central processes in the power plant - from the fuel supply to the feed water and steam system to flue gas cleaning and feeding into the municipal district heating network. The integration of AUMA actuators with Profinet communication not only enables high reliability through integrated redundancy, but also simple and flexible integration into existing systems as well as improved diagnostic options. These technological improvements make a significant contribution to increasing the efficiency, reliability and safety of the combined heat and power plant, while also helping to reduce operating costs.
The project underlines the importance of targeted modernization measures with technologically advanced actuators for efficient and sustainable operation of industrial plants. AUMA provides support not only with products, but also with comprehensive services from planning to commissioning to ensure smooth operation and the fulfilment of specific customer requirements.