Ewch i’r prif gynnwys

A futuristic science based approach to enhance quality and durability of High Performance Pre-cast Concrete Products

GB has one of the most extensive natural gas grids in the world.

This project is advertised as part of the EPSRC Doctoral Training Partnership. It is currently not available to self-funded applicants. Find out more information about the DTP including how to apply.

The long-term emissions targets necessitates a move away from using natural gas. The trends in electrification of heating and transport would reduce the final demand for natural gas and may result in significant over-capacity, or even redundancy in parts of the existing gas network. If this is to be avoided and if the gas network is seen as potentially useful as an alternative energy infrastructure, re-purposing the network for other uses may be required. The UK government and gas industry stakeholders have recognized the potential opportunity to use the gas grid for transporting low carbon/green gases (e.g. hydrogen and ammonia), and also to transport CO2 to sequestration sites. However, re-engineering the gas grid for other fuels requires detailed investigations on the technical, economic, social and safety implications.

Therefore, this project will be based on determining the technical requirements for pipeline transport of green blends or carbon dioxide. The thermodynamic conditions for pipeline transport of ammonia, ammonia blends (e.g. ammonia and hydrogen), hydrogen blends (e.g. hydrogen with natural gas) and CO2 will be investigated. The potential opportunity of using the existing natural gas transmission and distribution networks for transport of these gases will be examined. Steady state and dynamic simulations of pipe flow will be carried out to analyse the thermodynamic and transportation properties (e.g. temperature changes and pressure drops) of these flows in typical gas grids. The durability and impact on the materials and safety aspects of gas grid components will be examined. The adaptations required in the pipeline network (e.g. control and monitoring, valves, pressure reduction stations, compressors etc.) will be recommended. The costs of conversion will be compared to the case of building a new pipeline network and other methods of transporting ammonia/hydrogen blends.


Sivakumar Kulasegaram

Dr Sivakumar Kulasegaram

Senior Lecturer - Teaching and Research

+44 (0)29 2087 4576

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