1 / 7

Main problems and sources of down time

Main problems and sources of down time . JF Comblin 16/12/2013. Availability for the last 6 years. Commissioning during first years. Availability goal is 95%. Problems they have this year: Foil problem: Flickering High repetition rate of impact. Radiations. Thermal variations.

wynona
Download Presentation

Main problems and sources of down time

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Main problems and sources of down time JF Comblin 16/12/2013

  2. Availability for the last 6 years • Commissioning during first years. Availability goal is 95%.

  3. Problems they have this year: • Foil problem: Flickering • High repetition rate of impact. • Radiations. • Thermal variations. • No frame. Attached only by the top. • Problems of vacuum in DTL. • External faults: Lots of thunder storms during the summer. • Intervention: • Operators can’t intervene anymore on equipment. • No piquet service. • Best effort. Often there is only 1 person.

  4. Reliability studies: • Reliability Block Diagram in BlockSim application : Identify critical components; improve system performance; plan maintenance and spares; identify vulnerabilities • Preventive Maintenance: • Foil: Every 4-6 weeks. 2 to 6 hours needed to outgas and reconditionning. • Source: Every 4 weeks. 6 to 8 hours to exchange and setup.

  5. Summary Mainly the same problems we have. No piquet. Best effort only (often 1 person). Lots of scheduled maintenance. Study of downtime. Preventive change of source, foils.

More Related