Title:
Application of New Figures of Merit for Multi-Stage Cryocoolers
Application of New Figures of Merit for Multi-Stage Cryocoolers
| dc.contributor.author | Delmas, J. | en_US |
| dc.contributor.author | Kadin, A. M. | en_US |
| dc.contributor.author | Webber, R. J. | en_US |
| dc.contributor.author | Track, E. K. | en_US |
| dc.contributor.corporatename | Hypres, Inc. | en_US |
| dc.date.accessioned | 2011-07-14T20:12:32Z | |
| dc.date.available | 2011-07-14T20:12:32Z | |
| dc.date.issued | 2008-05 | |
| dc.description | Presented at the 16th International Cryocooler Conference, held May 17-20, 2008 in Atlanta, Georgia. | en_US |
| dc.description.abstract | Evaluation of the overall performance of a multi-stage cryocooler, including the cooling power available on the intermediate stages, is not trivial, but is necessary to choose or design efficiently a cooler for a defined application. We have recently proposed two simple definitions of electrical “figures of merit” (FoM) for multi-stage cryocoolers that represent the distributed refrigeration power for applications where heat-sinking of power and signal leads at intermediate stages is available. These FoMs are designed to have universal applicability and to convey the relative performance of such cryocoolers in a much more effective manner than simple weighted averages based on the coefficient of performance (CoP) of the various stages. We demonstrate the utility of these FoMs by applying them to a four-stage cryocooler over a broad range of temperatures, enabling us to determine the optimal operating temperature and heat lift of each stage of the cooler. We also show, using properties of a real superconducting electronic system operating at 4 K, how these FoMs can be used to help in the specification and design of an improved multi-stage cryocooler to fit efficiently the needs of such a system. | en_US |
| dc.identifier.isbn | 978-1-934021-02-6 | |
| dc.identifier.uri | http://hdl.handle.net/1853/39779 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Georgia Institute of Technology | en_US |
| dc.publisher.original | ICC Press | en_US |
| dc.relation.ispartofseries | Cryocoolers 16. Cryocooler integration technologies | en_US |
| dc.subject | Cryocooler integration technologies | en_US |
| dc.subject | Multi-stage cryocoolers | en_US |
| dc.subject | Figures of merit | en_US |
| dc.subject | Cryocooler performance | en_US |
| dc.title | Application of New Figures of Merit for Multi-Stage Cryocoolers | en_US |
| dc.type | Text | |
| dc.type.genre | Proceedings | |
| dspace.entity.type | Publication | |
| local.contributor.corporatename | Cryo Lab | |
| local.relation.ispartofseries | International Cryocooler Conference | |
| relation.isOrgUnitOfPublication | e67c90ea-6bb5-40f5-9d25-5bf484c9e22a | |
| relation.isSeriesOfPublication | d45e414a-b7fa-4f13-92d2-61f4f7ba805a |
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