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Projects: Projects for Investigator
Reference Number NIA_NGN_302
Title H21 - Wider Impacts of Hydrogen
Status Completed
Energy Categories Fossil Fuels: Oil Gas and Coal(Oil and Gas, Refining, transport and storage of oil and gas) 10%;
Hydrogen and Fuel Cells(Hydrogen, Hydrogen transport and distribution) 40%;
Hydrogen and Fuel Cells(Hydrogen, Other infrastructure and systems R&D) 50%;
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
Northern Gas Network (NGN) North East
Award Type Network Innovation Allowance
Funding Source Ofgem
Start Date 01 October 2021
End Date 31 May 2022
Duration ENA months
Total Grant Value £236,234
Industrial Sectors Energy
Region North East
Programme Network Innovation Allowance
Investigators Principal Investigator Project Contact , Northern Gas Network (NGN) North East (99.992%)
  Other Investigator Project Contact , Wales and West Utilities (0.001%)
Project Contact , Cadent Central (0.001%)
Project Contact , Cadent Eastern (0.001%)
Project Contact , Cadent North London (0.001%)
Project Contact , Cadent North West (0.001%)
Project Contact , Cadent West Midlands (0.001%)
Project Contact , SGN - Scotland (0.001%)
Project Contact , SGN - Southern England (0.001%)
  Industrial Collaborator Project Contact , Wales and West Utilities (0.000%)
Project Contact , Northern Gas Networks (0.000%)
Project Contact , Cadent Gas (0.000%)
Project Contact , SGN (0.000%)
Web Site https://smarter.energynetworks.org/projects/NIA_NGN_302
Objectives The project will be broken down in three phases:  Phase 1 - Research base information needed for modelling exercises. To collate the information/details required for the modelling software. This will include for example contacting manufacturers for data on their equipment, such as pressure regulators, filters etc to allow the models to be generated in the various software tools.  Phase 2 - Undertake Modelling simulations based on hydrogen and where required methane for comparison.  Specialist third parties will generate the various models needed and run various simulations to ascertain the results of the testing, including measurements where required.  Phase 3 - Assess results of modelling simulations and produce technical notes. Generate technical notes highlighting areas of concern and recommendation for further research and testing based upon modelling outputs.  Measurement Quality Statement  This project will provide technical guidance on the change in fluid behaviour between natural gas and hydrogen, complete with recommendation of whether evidence base is sufficient or further assessment (modelling or physical) is required. CFD is a cross-industry accepted early analysis tool to establish extent of impact at value prior to determining the necessity of physical testing.  Data Quality Statement  This project will utilise computational fluid dynamic modelling to provide quantified data output of change in fluid behaviour between natural gas and hydrogen across a range of applications, pressures and velocities. This will apply a data set taken from existing network assets and gas composition for accuracy in assessment and provide a baseline for hydrogen comparison. Input data and models will be assessed and validated upon development and completion to ensure data output quality.  This project will review the following: Dust Pickup - Model various gas velocities in a standard pipe setup to determine whether or not dust pick up could be an issue and at what velocity it may occur. This will include the analysis of dust retrieved from the network in order to undertake the modelling exercise.MEG Injection – A comparison of hydrogen and methane at 40m/s will be modelled using a minimum 500m of pipe to determine if MEG will drop out more or less when transported with hydrogenNoise in a pressure regulator – a pressure regulator will be modelled and a comparison of the acoustic effects of hydrogen and methane flowing at the same velocities will be undertaken.Determining if slamshut valves can close - Calculation of the time-dependent forces acting on the slamshut valve whilst closing under hydrogen and methane at a velocity of 40m/s. With the gas flowing in the pipe the force acting on the actuator will be applied. The modelling will then determine if the valve can close at the elevated velocities expected for hydrogen service. Pipeline Vibration in a typical low-pressure skid – undertake vibration measurements on the pressure reduction skid on the H21 Phase 2 hydrogen rig at Spadeadam under normal operation and compare to vibration measurements on a similar pressure reduction skid operating on natural gas on the network. Filters – Estimation of the pressure drop across a filter, calculated for hydrogen and methane at 3 velocities.  To review the changes in characteristics of hydrogen compared to natural gas, and the potential initial impact on the following: Dust pickup MEG injection Noise of a pressure regulator Slam shut valve operation Vibration in an example low pressure skid Filter differential pressuresThe project will produce technical reports detailing the findings and will make recommendations for any further research/testing
Abstract In order to utilise the existing distribution gas network to transport hydrogen, the effects of the changes in characteristics of hydrogen from natural gas need to be reviewed and the effect on the network assessed. This is particularly of importance for the H21 Phase 3 Occupied Trials project and future conversion projects.  The velocity, density and viscosity of hydrogen through the GD network will be different to natural gas. These changes may have an adverse effect on the network and so the impacts need to be reviewed. The project will involve engaging with experts to undertake a research review and assessment of the known characteristic changes of hydrogen vs methane and how that will affect the transportation of hydrogen through the existing gas network.
Publications (none)
Final Report (none)
Added to Database 02/11/22