Jeff T. Collins Undulator Support/Mover System [email protected]@aps.anl.gov 14 March 2008...
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Transcript of Jeff T. Collins Undulator Support/Mover System [email protected]@aps.anl.gov 14 March 2008...
![Page 1: Jeff T. Collins Undulator Support/Mover System TestingCollins@aps.anl.gov@aps.anl.gov 14 March 2008 LCLSLCLSLCLSLCLS LCLS Undulator Support/Mover System:](https://reader036.fdocuments.us/reader036/viewer/2022062515/56649d225503460f949f7f93/html5/thumbnails/1.jpg)
Jeff T. Collins
Undulator Support/Mover System Testing [email protected]
14 March 2008
LLCCLLSSLCLS Undulator
Support/Mover System: Relay Rack Heat
Dissipation & the Effects on the Overall System
Jeff T. Collins
![Page 2: Jeff T. Collins Undulator Support/Mover System TestingCollins@aps.anl.gov@aps.anl.gov 14 March 2008 LCLSLCLSLCLSLCLS LCLS Undulator Support/Mover System:](https://reader036.fdocuments.us/reader036/viewer/2022062515/56649d225503460f949f7f93/html5/thumbnails/2.jpg)
Jeff T. Collins
Undulator Support/Mover System Testing [email protected]
14 March 2008
LLCCLLSS
Support/Mover System TestingThe Experiment:
• A Combination of Infrared Imaging and RTD Measurements were Used to Determine the Actual Undulator System Heating Effects from the Relay Rack Under Worst-Case Conditions where No Forced Air Flow is Present Along the Undulator.
• The LTT Set-Up at the APS was Used for the Experiments.
•A 400 Watt Heater Attached to Aluminum Channel Was Placed Inside of a Relay Rack and the Relay Rack was Placed in Position Under the Support/Mover System Girder.
• The 400 Watt Heater Was Turned On and Infrared Images Were Acquired every 1000 Seconds for a Total of 72 Hours (1200 Images).
• A Total of 12 RTD’s were Used to Monitor Various Points On and Around the Undulator System During the Heating and Cool Down Periods.
![Page 3: Jeff T. Collins Undulator Support/Mover System TestingCollins@aps.anl.gov@aps.anl.gov 14 March 2008 LCLSLCLSLCLSLCLS LCLS Undulator Support/Mover System:](https://reader036.fdocuments.us/reader036/viewer/2022062515/56649d225503460f949f7f93/html5/thumbnails/3.jpg)
Jeff T. Collins
Undulator Support/Mover System Testing [email protected]
14 March 2008
LLCCLLSS
Support/Mover System TestingThe Relay Rack:
Two 200 Watt Heaters Used for this Test, Attached to the Aluminum Channel and Placed Inside of the Relay Rack
![Page 4: Jeff T. Collins Undulator Support/Mover System TestingCollins@aps.anl.gov@aps.anl.gov 14 March 2008 LCLSLCLSLCLSLCLS LCLS Undulator Support/Mover System:](https://reader036.fdocuments.us/reader036/viewer/2022062515/56649d225503460f949f7f93/html5/thumbnails/4.jpg)
Jeff T. Collins
Undulator Support/Mover System Testing [email protected]
14 March 2008
LLCCLLSS
Support/Mover System Testing
Rack Heating 400 Watts.avi
The Thermal Imaging Results:
• Images Were Acquired Every 100 Seconds
• Over a 72 Hour Period 1200 Images Were Acquired
• The Data Was Converted into a Movie
• Time versus Temperature was Evaluated at Several Points on the System
PRESS BUTTON TO PLAY MOVIE
![Page 5: Jeff T. Collins Undulator Support/Mover System TestingCollins@aps.anl.gov@aps.anl.gov 14 March 2008 LCLSLCLSLCLSLCLS LCLS Undulator Support/Mover System:](https://reader036.fdocuments.us/reader036/viewer/2022062515/56649d225503460f949f7f93/html5/thumbnails/5.jpg)
Jeff T. Collins
Undulator Support/Mover System Testing [email protected]
14 March 2008
LLCCLLSS
Support/Mover System TestingThe Final Image After 72 Hours of Relay Rack 400W Heat Dissipation:
• Steady-State on the Relay Rack Surface is Reached in Approximately 4 Hours• Variations Beyond Steady-State Track with Air Temperature Fluctuations • ≈ 7°C Temperature Rise in the Center of the Relay Rack• ≈ 2.6°C Temperature Rise on the Gusset Center• ≈ 1.4°C Temperature Rise on the Girder Top Above the Relay Rack• Unmeasurable Temperature Variation on the Undulator Top
0.39°C per Division
![Page 6: Jeff T. Collins Undulator Support/Mover System TestingCollins@aps.anl.gov@aps.anl.gov 14 March 2008 LCLSLCLSLCLSLCLS LCLS Undulator Support/Mover System:](https://reader036.fdocuments.us/reader036/viewer/2022062515/56649d225503460f949f7f93/html5/thumbnails/6.jpg)
Jeff T. Collins
Undulator Support/Mover System Testing [email protected]
14 March 2008
LLCCLLSS
Support/Mover System TestingTemperature Measurements Taken at Various Points Using RTD’s
400W Relay Rack Heat Dissipation, Approximately Four Days of Heating Plus One Day Cool Down Period
![Page 7: Jeff T. Collins Undulator Support/Mover System TestingCollins@aps.anl.gov@aps.anl.gov 14 March 2008 LCLSLCLSLCLSLCLS LCLS Undulator Support/Mover System:](https://reader036.fdocuments.us/reader036/viewer/2022062515/56649d225503460f949f7f93/html5/thumbnails/7.jpg)
Jeff T. Collins
Undulator Support/Mover System Testing [email protected]
14 March 2008
LLCCLLSS
Support/Mover System Testing
Conclusions:
• With 400 Watt Power Dissipation from the Relay Rack there is Less Than 0.1°C Temperature Variation on the Undulator Jaws.
• These Tests were Conducted Under Worst-Case Conditions with No 0.43 m/sec Tunnel Air Flow Along the Undulator. In Actual Operation with Tunnel Air Flow Present the Effects of Relay Rack Heat Dissipation Would be Even Less.
• The K-Value of the Magnets in the Undulator Will be Unchanged as a Result of the Heat Dissipation from the Relay Rack Relative to Fluctuations in Tunnel Air Temperature.