NEL CO2 Static Facility
The purpose of the CO2 Static Test Facility is to allow R&D into fluid property sensors, samplers and secondary measurement from flow sensors. The facility allows the installation of full-size flow sensors or pipe spool pieces of variable diameter and length.
The pressure and temperature can be controlled in such a way as to establish CO2 conditions in gas, dense phase (liquid) and supercritical conditions. The test facility can use either pure CO2 or a CO2 mixture containing common contaminants. The presence of impurities allows the detection of the onset of phase boundary changes and the effect of two-phase regimes on different sensors. The CO2 mixture are normally pre-mixed but provision has been made to allow for injection of contaminants. Potential components and concentrations of these contaminants are:
The testing of sampler systems may involve the extraction of CO2 from the test section in a controlled manner while maintaining the pressure and temperature of the test section. For such tests, quantities of CO2 extracted can have flowrates of up to 500 ml per min (expressed as gas at atmospheric pressure and temperature) and maximum volume of 10 litres (at system P and T).
A summary of the design parameters is given below:
A range of sensors and sampling systems will be required to ensure the safety and economic viability of CCUS schemes. The NEL CO2 Static Test Facility provides an environment in which such devices can be developed and tested under controlled conditions across the ranges of temperatures, pressures, phases and compositions likely to be encountered in CCUS schemes.
NEL is the UK’s Designated Institute for Flow Measurement and Liquid Density. On the East Kilbride site, where the CO2 Static Test Facility is located, other facilities include:
Single phase water flow facility
Single phase oil flow facility
Elevated pressure and temperature flow loop
Gas flow loop
Multiphase flow loop
Advanced multiphase facility
Primary standard liquid densitometer