1. Cable Channel tests ____________________________________________________________ 17/Apr/07 Pisa Group Four configurations of insulation has been tested in the following condition: T fluid -23 0 C power off T fluid -13 0 C power off T fluid -23 0 C power on (1 watt/m) T fluid -13 0 C power on (1 watt/m) Next tests: Mechanical e thermal Considerations in the real channel. Summary

2. ____________________________________________________________ 17/Apr/07 Pisa Group 9 mm space loft in a packaging bag Radius of Tubes  38mm Min radius of cable Bundle  75 mm The box is isolated from the table of 20 mm Conf. 1

3. Conf. 1 test results no power ____________________________________________________________ 17/Apr/07 Pisa Group conf1 run1 4/4/07 no power -22.70 -7.25 0.20 14.60 14.40 12.00 20.50 temp fluid temp ext cables avg temp in box temp ext box top temp ext box vert temp ext box bottom temp tair  t cable 15.45 0 C  t insul. 19 0 C  t total 36.4 0 C

4. ____________________________________________________________ 17/Apr/07 Pisa Group Conf. 2 The box is isolated from the table

5. Conf. 2 test results no power ____________________________________________________________ 17/Apr/07 Pisa Group temp fluid temp ext cables avg temp in box temp ext box top temp ext box vert temp ext box bottom temp tair  t cable 11.3 0 C  t insul. 23.5 0 C  t insul. 34.8 0 C conf2 run2 5/4/07 no power -22.60 -11.30 7.70 11.60 13.70 11.30 19.30

6. Conf. 3 test results no power ____________________________________________________________ 17/Apr/07 Pisa Group temp fluid temp ext cables avg temp in box temp ext box top temp ext box vert temp ext box bottom temp tair  t cable 11.6 0 C  t insul. 23.5 0 C  t insul. 34.1 0 C -22.60 -11.00 10.00 13.10 14.20 10.40 20.70

7. Conf. 4/5 test results no power ____________________________________________________________ 17/Apr/07 Pisa Group The configuration 4 is isolated from the table. 3 mm of armeflex is installed around cables. The cooling pipes were rapped with a foil of 50  m of aluminum

8. Conf. 4 test results no power ____________________________________________________________ 17/Apr/07 Pisa Group temp fluid temp ext cables avg temp in box temp ext box top temp ext box vert temp ext box bottom temp tair  t cable 12.1 0 C  t insul. 23.7 0 C  t insul. 34.8 0 C -22.400 -10.300 4.000 16.000 14.100 10.100 19.200

9. Conf. 4 test results with power ____________________________________________________________ 17/Apr/07 Pisa Group temp fluid temp ext cables avg temp in box temp ext box top temp ext box vert temp ext box bottom temp tair c4 run9 13/4/07 -21.700 4.300 13.600 21.700 21.200 17.300 20.700

10. Conf. 5 test results no power ____________________________________________________________ 17/Apr/07 Pisa Group temp fluid temp ext cables avg temp in box temp ext box top temp ext box vert temp ext box bottom temp tair  t cable 12.6 0 C  t insul. 26.8 0 C  t insul. 39.4 0 C -22.200 -9.600 6.200 19.200 17.600 14.800 20.400

11. Conf. 5 test results with power I=9A V=15 ____________________________________________________________ 17/Apr/07 Pisa Group temp fluid temp ext cables avg temp in box temp ext box top temp ext box vert temp ext box bottom temp tair conf5 tf-13 power -14.700 9.400 17.650 23.600 23.100 21.400 22.100

12. Next tests: ____________________________________________________________ 17/Apr/07 Pisa Group We were trying to improve the uniformity of temperature. For this reason we are adding on the cable bundle an aluminum foils of 0.2 mm The test will be done on conf5.

13. Mechanical e thermal Considerations in the real channel. ____________________________________________________________ 17/Apr/07 Pisa Group Several sections have been found. The channel are taper. The section of cable and tube must be adapted at the different sections

14. Mechanical e thermal Considerations in the real channel. ____________________________________________________________ 17/Apr/07 Pisa Group

15. Summary ____________________________________________________________ 17/Apr/07 Pisa Group 1.For the connector there is no problems of condensation. 2.Internal flow must be assured to keep the channel dry for safety 3.In the condition of -13 0 C and max power the plate was at 22.1 +/- 0.2 0 C and no variation with no power and min temperature - 22 0 C. This was placed underneath the channel. These are the extreme condition. 4.An effort to improve the uniformity of temperature must be done.