| EPSRC Reference: |
GR/R02610/01 |
| Title: |
Effect of LN Bubble Dynamics On Insulation Performance For High Temperature Superconducting Power Applications |
| Principal Investigator: |
Lewin, Professor P |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Electronics and Computer Science |
| Organisation: |
University of Southampton |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 2000 |
Ends: |
30 September 2003 |
Value (£): |
193,953
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Summary on Grant Application Form |
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The aims of the proposed project is to obtain understanding (through a systematic and well designed experimentation, supported by theoretical studies) of bubble dynamics in liquid nitrogen and their subsequent effect on electrical performance. The programme of work will explore some of the physical scientific issues, which underpin the engineering aspects of HTS that may be applied to a wide range of power delivery devices. However, it is advantageous to focus the work on a single type of device, which may be regarded as a suitable vehicle for the study. Power cables with their joints and terminations exhibit many of the complexities in all HTS electrical plant, and consequently are an ideal platform for the research. The study will involve the construction of a suitable cryostat and the investigation and characterisation of bubble behaviour under various regimes of heat input, liquid nitrogen temperature and external pressure. The work will be extended to examine the effects of electric stress and heat input on the pre-breakdown phenomena within vapor cavities for various experimental configurations. In this context, the work will look at the combined effects on the four principal stages of bubble behaviour (nulearation-growth-breakoff and rise from surfaces) and their interactions with the partial discharge process. The project is timely as a number of demonstrators have been built showing that HTS is a valuable technology for bulk electrical power applications capable of providing very real benefits. The novelty of the project lies in the complexity of the problem and the attempts to bridge scientific understanding and engineering design, which will advance the HTS knowledge base.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.soton.ac.uk |