PLFS

Primary LNG Mass Flow Standard

Publieke samenvatting / Public summary

Aanleiding
Because of the nature of liquefied natural gas (LNG) new measurement systems and standards need to be developed. Industrial research is needed to make measurements comparable and in line with this “new” product, LNG as fuel. The market: suppliers, traders, storage capacity and end-users need physical reference standards that make the business transparent and reliable which is crucial for trade.

Doelstelling
The project “Primary LNG Mass Flow Standard” builds on previous LNG related research and aims at improving the fundamental standard (basically “the kilogram for LNG”) that serves as the source of traceability for the complete measurement infrastructure. The overall goal of this project is to reduce the measurement uncertainty of the primary standard by a factor two to bring it below 0.1%.

Korte omschrijving
The project partners will carry out a series of experiments to quantify the effects that lead to the current high level of uncertainty in the primary standard. The results are used to take a decision on the best technological solution, to prepare a design for and construct the required sub-systems. This will be followed by a validation of the primary standard under normal (LNG) operating conditions to investigate the reduction of the sources of measurement uncertainty. A specially designed ultra-stable flow meter will be used to investigate the reproducibility of the improved primary LNG mass flow standard.

Resultaat
The result will be a demonstrated measurement uncertainty below 0.1% for the primary LNG mass flow standard (the kilogram for LNG) and the availability of this standard for transferring the kilogram to the mid-scale LNG calibration facility.