WP 3: Thermal System Strictly Confidential 1 Workpackage 3: Thermal System Meeting, February 2, 2006 at EPFL NTB INTERSTAATLICHE HOCHSCHULE FÜR TECHNIK BUCHS NMW A. Bolleter, P. Müller

WP 3: Thermal System Strictly Confidential 2 Outline Presentation First Version of test set-up Comparing measurements and simulation Thermal System Demonstrator Summary

WP 3: Thermal System Strictly Confidential 3 Measurement Setup Setup only to test different insulations. Tested insulation Dummy-Stack with heat source Known insulation material (MicroTherm) Positions of the measured temperatures Wire of the thermocouple Wire for the heat source Used sensors: Thermocouple Type K

WP 3: Thermal System Strictly Confidential 4 3D Model Viewpoint A Aerogel Wire Stack MicroTherm Wire

WP 3: Thermal System Strictly Confidential 5 Simulated Temperature Distribution Viewpoint A

WP 3: Thermal System Strictly Confidential 6 Improved Measurement Setup Setup only to test different insulations. Tested insulation Dummy-Stack with heat source Known insulation material Positions of the measured temperatures Smaller diameter of wires to reduce heat losses along wires

WP 3: Thermal System Strictly Confidential 7 Thermal System Demonstrator Replaceable Insulation (vacuum-insulation, wds, aerogel) Housing Dummy StackHeat Exchanger …..for measurement with and without flow with different insulation

WP 3: Thermal System Strictly Confidential 8 Dummy Stack and Heat Exchanger Open issues:  Connection MICA Foturan  Adhesion conductor / heating element  Connection conductor path to heating element  Dimension

WP 3: Thermal System Strictly Confidential 9 First test connection MICA Foturan ….failed  Something happened with MICA !?  Only one test strip survived Possible improvements  Crystallizing Foturan  Lower temperature  Etching step Idea: Foturan MICA 1 900°C Mechanical hand load

WP 3: Thermal System Strictly Confidential 10 Summary Summary:  Wires have great impact on the system  Measurement Setup needs to be improved  Design of demonstrator is done  Tackling open issues  Ongoing Tests

WP 3: Thermal System Strictly Confidential 11 Next Steps Time Schedule: FebruaryMarchAprilMay DimensioningProducingTesting Design Measuring Next steps:  To improve measurements  To design demonstrator: Test open issues  To fix dimensions of demonstrator

WP 3: Thermal System Strictly Confidential 12 Questions ?