A modular freezer construction for an offshore platform in Norway, comprising lightweight ProTek® panels fixed to structural pultrusions, which allowed SCS to deliver a low thermal conductivity with a U value of 0.2 W / m² ºC. Due to space limitations on the platform the walk-in freezer, which measures 7.5m long by 2m wide x 2.5m high, is designed to form an extension to the existing living quarters and therefore has to meet the same criteria for explosion and fire performance.
Products commissioned: Bespoke ProTek® composite module
Location: Norwegian North Sea
The project was delivered to the Gullfaks platform for Statoil in a very rapid timescale including independent certification by Det Norske Veritas (DNV) verifying blast and fire performance. The modular freezer construction comprises lightweight ProTek® panels fixed to structural pultrusions, which allow SCS to deliver a low thermal conductivity with a U value of 0.2 W/m2; ºC.
Due to space limitations on the platform the walk-in freezer, which measures 7.5m long by 2m wide x 2.5m high, is designed to form an extension to the existing living quarters and therefore has to meet the same criteria for explosion and fire performance; this is equivalent to 1.5 Tonne / m2; blast load and 60 minutes fire protection.
The entire structure weighs no more than 2.5 Tonnes with less than 3% being metallic parts and each lightweight panel was installed by platform personnel using no special handling aids.
The use of composite panels and pultruded structural members ensures that the insulation requirements are met with a minimal thickness panel since there are no metallic elements to affect the freezer performance. Another aspect of the reduced space is that the module had to be installed from inside the freezer since there is no access to install fixings from outside the module. SCS manage this by using stainless steel blind fixings designed to be installed where access is restricted to one side only.
Further details of the freezer container design along with photographs taken during trial assembly at SCS premises and during installation offshore are attached.
The project was coordinated by SCS Norwegian agents, Module Solutions and Systems AS and with freezer experts RK Offshore.
The SCS ProTek® system meets all current requirements for jet-fire, pool fire and blast protection. ProTek® enclosures are typically used for ESDV/actuator protection must also withstand wind and wave load acceleration movements under extreme climatic conditions. The high insulation properties of the ProTek® system ensures minimum temperature rise, thus providing essential integrity of the protected equipment. In addition ProTek® delivers sound attenuation up to 38dB(A) according to NORSOK R-004.
ProTek® is manufactured from an advanced composite panel system which is lightweight and has wide design versatility. Being virtually inert, there is zero corrosion risk and outstanding weather resistance, thus offering a maintenance free life for at least 30 years. In addition ProTek® does not contribute to water or air pollution Fire and blast performance is certified by Lloyds and DNV and will withstand a two hour jet fire test at 0.3 kg /sec gas release, and blast tests up to 1.5 barg.
SCS has more than 29 years’ proven track record of providing engineered composite solutions to the energy industry – not only offshore oil and gas, but wind and tidal stream. SCS energy industry expertise coupled with world class Quality, Health and Safety and Environmental compliance to ISO standards, enables it to safely take on major projects and take them thorough to timely and