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Rectangular Splitter Attenuator

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Client: Foster Wheeler Energy Reading

Project: Fan Exhaust Silencer - ICI PLC MOPS CHC Environment Improvement


Project Scope of Hodgson & Hodgson Group Supply The design and manufacture of a Rectangular Splitter Attenuator, nominally 1500mm wide x 2100mm high x 2400mm long, complete with transition pieces to connect between fan and exhaust. Design Features In order to satisfy stringent conditions relating to possible attack from chlorine and acid vapours, the attenuator and transitions were manufactured from glass fibre reinforced polypropylene with polypropylene internal elements containing mineral fibre protected with an impervious membrane. The attenuator was designed for a flowrate of 35,000m3/hr with gas temperature ranging from 15oC-65oC. The insertion loss was designed to satisfy criteria specified by FW engineers. With a design life of 10 years in continuous operation, the attenuator and transitions were installed on the exhaust of a Thermal Oxidiser Caustic Scrubber, serving the entire ICI Castner Kelliner/Rocksavage Works at Runcorn in Cheshire

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