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Projects: Projects for Investigator
Reference Number NIA_NGGD0078
Title Blown Air Extrusion (BAE) Material Lifetime Testing
Status Completed
Energy Categories Fossil Fuels: Oil Gas and Coal(Oil and Gas, Refining, transport and storage of oil and gas) 100%;
Research Types Applied Research and Development 100%
Science and Technology Fields ENGINEERING AND TECHNOLOGY (Mechanical, Aeronautical and Manufacturing Engineering) 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Project Contact
No email address given
Cadent Gas
Award Type Network Innovation Allowance
Funding Source Ofgem
Start Date 01 May 2016
End Date 01 November 2017
Duration 18 months
Total Grant Value £237,368
Industrial Sectors Technical Consultancy
Region London
Programme Network Innovation Allowance
Investigators Principal Investigator Project Contact , Cadent Gas (100.000%)
Web Site http://www.smarternetworks.org/project/NIA_NGGD0078
Objectives The completion of these tests will provide a key determinant in the assessment of the technical viability of the BAE solution. Of the two reports being produced from this project, the first will provide interim confirmation of the ability of the applied resin layer to resist the initial internal and external loading as the host pipe begins to deteriorate and fail. This will inform a decision to continue with the remaining programme activities. The second and final report will complete the assessment of the ability of the applied resin layer to continue to resist the applied loading throughout the lifetime of the installation. This will confirm that the lifetime of the resin material is sufficient to validate the technical and commercial viability of the solution, leading to full commercialisation.
Abstract Under the HSE’s Enforcement Policy for the Replacement of Iron Gas Mains 2013-2021, all Tier 1 iron mains are to be decommissioned by the end of 2032 or earlier. There are several existing and developing approaches to old cast iron pipe renewal and the evaluation of one developing renewal technique incorporating the application of a spray applied resin is currently being undertaken by the National Grid Gas Distribution Innovation Team, together with strategic partners and suppliers. The resulting programme of work is known as Pipe Replacement In Situ Manufacture (PRISM), Blown Air Extrusion (BAE) is the application of a resin to the associated steel services. BAE Lifetime Testing will be run as a project within the overall PRISM programme and, due to the duration of some of the activities to be undertaken, is considered to be on the critical path leading to solution commercialisation. As the current definition for decommissioning of the host steel pipe suggests that any replacement pipe is essentially required to be a stand-alone system with no support from the host pipe following installation, there is a need to better understand the performance and potential lifetime of the new BAE installation. A proof of concept study has already been undertaken and whilst some further development is required, it has established the processes for potential use in cast iron gas distribution pipelines and the associated steel services. In order to fully establish the processes for pipe renewal, further testing is required to determine whether the processes used for BAE and PRISM application allow sufficient resin to be applied to meet the long term fully structural performance requirements of the installation. There are a number of tests that can be done to establish whether the applied BAE can withstand the initial host pipe fracture as well as accommodate the fracture long term e. g. as the host pipe continues to move with the surrounding ground over time. The testing will confirm whether the applied resin layer can maintain its integrity as the host pipe is subjected to a range of axial and vertical movements.Note : Project Documents may be available via the ENA Smarter Networks Portal using the Website link above
Publications (none)
Final Report (none)
Added to Database 10/07/18