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Process instrumentation of a solar chemical plant

The achievement is the monitoring of the behaviour of different custom complex systems with parts operating at high temperature (the parts of a 500kg-capacity chemical reactor and a 50kg/h metallic powder zinc quenching system):
- To be able to run the plant by monitoring the main operating parameters,
- To be able to compare the real behaviour of the systems to the predicted modelled behaviour,
- To be able to enhance and optimise the whole plant.

This monitoring includes low to high temperature parameters (ambiant to 1600 K) of solids, liquids and gases, pressure of gases, flow rates of liquids and gases, gas composition real time analysis, for a total of about 150 parameters directly for the plant, without including all the auxiliary systems.

A complete instrumentation system has been designed to achieve this. First, the relevant parameters to be monitored have been identified together with our partners. Then, adapted instrumentation devices have been selected and purchased to fulfill the mission. Together with WIS, we have installed and checked in place these instruments.

Exploitation of the data collected is being conducted for different purposes:
- Control of the process, in real time or for after operation analysis
- Correspondence of the reality to the theoretical models
- Basis for further development and cost studies

To achieve this, PROMES-CNRS has further developed its existing expertise in high temperature solar based chemical processes instrumentation and monitoring. This knowledge can be applied or adapted to other high temperature processes.

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