Equations of State for Net Zero Gases
Abstract
In metering applications, Equations of State (EoS) are mathematical models that are used to convert measured volumes to standard units. This enables transfer from volume to mass, allowing customers to be billed and for the networked to be balanced in energy. Metering and network balancing cannot be performed in volume, as it doesn’t account for relative, varying gas component concentrations – and therefore CV.
The EoS currently used (AGA8) is acceptable for up to 5% hydrogen, but after this point it’s uncertainty is unknown – meaning the network may be unable to maintain accurate billing or system balancing. This project will obtain experimental data for a range of net zero gases and compare the output of several EoS for accuracy against real, measured, NTS-representative conditions.
