A £100m biomass plant in Cheshire is set to process 150,000 tonnes per year of material that would have otherwise have gone to landfill, with enough energy to power around 40,000 homes over 20 years of operation. The Ince Park Resource Recovery Centre will export 21.5 MW of clean, affordable power. Building upon successful at Birmingham and Welland utilising Ultra Surefire systems, this new project at Ince Park will help to meet the UK’s landfill diversion and carbon reduction objectives.
The nature of these plants mean that specialist fire protection solutions are required to support the day to day operations, risks and challenges posed by these types of materials and machinery. Having worked with the Ultra Surefire team at a previous project, the customer was impressed with the level of support and technical capabilities that could make for a smooth transition for their latest project programme.
Delivering a range of mechanical and electrical fire protection systems means that the team at Ultra Surefire can protect specific fire risk challenges throughout the energy from waste processes with a total fire solution.
Water mist was a preferable fire suppression medium as unlike deluge sprinklers, water mist once discharged does not damage the turbine casing, which was a problem to be avoided at all cost by the customer. Water mist fire suppression provides a flexible approach covering locations ranging from machinery spaces, process areas, conveyor belts and duct systems ensuring that fires will not spread from one fire zone to the next. Ultra Surefire’s low pressure fine water spray deluge system is perfect for these differing applications, in particular the N-Pipe system was created for use in large indoor spaces where biomass is stored in potentially large piles. Designed in a modular approach, the water mist system can be easily installed into existing locations. Operating at 4700 litres per minute, the full deluge system provides 90 minutes of operation, sufficient discharge time to satisfy insurers.
Open deluge high level roof protection will protect the Reception and Turbine Halls, combined with a mixture of cameras, flame detectors, beacons and manual callpoints providing the release of the system. Water mist will also be extended to cover the external and internal conveyors with linear cabling for detection. Water supplies will be fed by a storage tank located externally with traced heated and lagged pipework.
Further fire risks within the electrical, switchboard, bag house compartments and PAC will be fitted with IG 541 gas suppression and CO2 systems.
Each system is monitored through the main building addressable fire detection system with a master control panel located within the office block control room, and installed to BS 5839. The systems will be arranged in a double knock set up to protect the plant from false activations. Stage 1 alarm will initiate the system and shutdown the plant to provide an opportunity to investigate potential problems. Stage 2 alarm will signal the fire panel to operate and discharge the system. The systems can also be manually activated local to the risk via emergency callpoints.