Liquid-hydrogen System Commissioning

The third and final test of the liquid-hydrogen system using neon was successful. The test ended last Thursday (03Aug17) and the system was allowed to warm up over the weekend. The warm-up has been slow, indicating excellent thermal installation.

The outstanding work that must be carried out before the final safety inspection includes the completion of the remedial work on the hydrogen-quench line, the installation and inspection of ATEX-rated fittings in the LH2 shed on the roof of then MICE Hall and the completion of the safety-related paper work. In addition, the leak testing in the hydrogen-gas panel has to be repeated to document the (low and satisfactory) leak rates. The liquid-hydrogen team is working steadily to address the last remaining issues.

The final safety tour is scheduled for 17Aug17. Assuming the system is signed off as safe to operate, the commissioning of the system with hydrogen will commence as soon after the tour as possible.

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