Scenarios for Feeding Hydrogen into Gas Transport Network

by Hans Diederichs

PSI Software AG has delivered a test system based on PSIganproda 5.1 for Thyssengas GmbH. With it, scenarios for hydrogen feed-in into the existing Thyssengas GmbH gas transport network can be examined, and upgrades of the existing reconstruction systems prepared.

In a consortium with Gasunie Deutschland GmbH & Co. KG and TenneT TSO GmbH, Thyssengas is planning to implement the "ELEMENT ONE" project in Lower Saxony for sector coupling on an industrial scale. Regenerative electricity from offshore wind farms is to be converted into green gas. In several stages, a powerful electrolyzer is planned for the production of hydrogen with a capacity of up to 100 MWel.

PSI has been supporting Thyssengas as a service provider in the operation of the calibrated reconstruction systems for determining billing figures since 2008. The calibrated reconstruction system PSIganproda calculates the distribution of the gas properties in the network.

In the first expansion stage of ELEMENT ONE, there is an option to feed hydrogen into the reconstructed H-gas transport networks. In test scenarios, the propagation of hydrogen in the network is calculated by PSI’s test system. The current billing processes are not affected since the test system runs on separate hardware and software using the revised PSIganproda V5.1. It has a fundamentally modernized user interface with extended graphical display options.

In addition, the calculation options have been expanded to include all gas properties described in ISO 12213-2:2006. This also allows for an alternative calculation of the compressibility factor according to AGA8-DC92. Control plans allow easy adaptation and comparison of scenarios. Performance improvements allow monthly calculation results to be available within a few seconds.

Source and photo: PSI Software AG

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