Connecting Biomethane Facilities to the Gas Grid

Since 2015, CPSL has provided engineering expertise to principal designers/contractors involved in anaerobic digester plant projects, to help facilitate the injection of bio methane into the gas grid.

Read More
 

Connecting Biomethane Facilities to the Gas Grid

Since 2015, CPSL has provided engineering expertise to principal designers/contractors involved in anaerobic digester plant projects, to help facilitate the injection of bio methane into the gas grid. These projects presented us with opportunities to deliver smart and value driven engineering solutions in a new and growing market in the UK energy sector. 

Two of the sites where our services have been required through the project development and construction phases to satisfy critical milestones as specified by the local gas network operator are the biogas plants at Methwold (Norfolk) and Brinklow (near Ansty, Coventry). The design parameters of the injected gas from these plants are as follows:

  • Methwold Biogas Plant: Maximum operating pressure of 42 barg and flow of 600 scmh.
  • Brinklow Biogas Plant: Maximum operating pressure of 19 barg and flow of 600 scmh.

CPSL assisted the principal designer in completing the following tasks:

  • Carried out pipeline route study.
  • Undertook detailed pipeline design comprising calculations for pipeline sizing to satisfy design Code recommended velocity, anaerobic digester plant layout, hazardous area assessment, etc.
  • Carried out detailed stress analysis for new above ground pipework assets.
  • Produced schedule and specification for materials as well as coordinated the procurement of pipework components.
  • Liaison with equipment vendors supplying preassembled units, such as the grid entry unit for gas quality analysis.
  • Coordinated the seamless engineering delivery across engineering disciplines.

On similar grid connection (exit and entry) projects, CPSL has capabilities to provide a full spectrum of engineering services from the concept development stage to engineering design and handover.  For more details on our capabilities and services, refer to the services section of our website.

Pipework Stress Analysis on a Steam Distribution Network

CPSL was engaged by CAPITA/Projen to provide stress engineering expertise on a proposed IP steam pipework modification within the INOVYN facility located on the bank of the river Mersey.

Read More
 

Pipework Stress Analysis on a Steam Distribution Network

CPSL was engaged by CAPITA/Projen to provide stress engineering expertise on a proposed IP steam pipework modification within the INOVYN facility located on the bank of the river Mersey.

The mechanical engineering design work was undertaken by CAPITA/Projen in accordance with ASME B31.3 with the pipework stress analysis scope limited to the following:

  • Carry out B31.3 code compliance assessment for defined sustained and shakedown load case combinations
  • Undertake flange leakage assessment using the pressure equivalent method
  • Provide pipe load at support locations for civil and structural design considerations.

Calculations were performed with steam at 260°C and 17 barg using CAESAR II software.

In order to assess the impact of the modified pipework on the existing piping arrangement, a section of the existing steam header was included in the CAESAR model before processing the calculations.

The main challenge with this project was the lack of records to confirm the mechanical properties of the existing steam pipework. Our approach in tackling this challenge required the development of five scenarios that could possibly represent the as-built condition.

CPSL also provide stress analysis for preassembled pipework modules, oil, gas and petrochemical plants, to the relevant ASME Code, IGE/TD/12 Edition 2 and PD8010 requirements.  For more details on our capabilities and services, refer to the services section of our website.

1050NB Pipeline crossing the river humber

In 2015/2016, CPLS provided stress engineering expertise on the Feeder 9 pipeline replacement project comprising a 5km River Humber crossing via a tunnel.

Read More
 

Assessment of a 1050NB Pipeline with 5km through a Tunnel under a River Bed

In 2015/2016, CPLS provided stress engineering expertise on the Feeder 9 pipeline replacement project comprising a 5km River Humber crossing via a tunnel. The front end engineering design (FEED) and detailed design associated with the replacement pipeline were completed by CAPITA.

The replacement pipeline is required due to loss of cover on the existing Feeder 9 pipeline as a result of natural erosive activity on the estuary bed and is to be installed in 1050NB diameter pipe between Goxhill and Paull above ground installations.

The pipeline has a design pressure of 75 barg.

CPSL was required to predict the changes in stress within the existing pipeline network (and in the new section) arising from the proposed modifications required to facilitate the pipeline replacement. This required the existing pipework configuration to be processed so as to provide a stress level benchmark against which consequential stress condition impacts of the tie-in of the replacement pipeline could be assessed. The exercise also provided justification for excluding anchor blocks at the tunnel entry and exit locations.

Computational analyses were performed in accordance to IGE/TD/12 Edition 2 (for the above ground pipework sections) and PD8010-1 (for the pipeline buried section) using CAESAR II software.

Our area of expertise includes the provision of preliminary route study for diverted and new pipelines, pipeline special crossing, detailed engineering, etc.  For more details on our capabilities and services, refer to the services section of our website.

 
 

Contact Us

For enquiries, please complete the contact form with as much details as you can so that we can connect you with the most appropriate member of the team.