Investigation on the Phase Characteristics of High Frequency Inertance Pulse Tube Cryocoolers above 50 K.

dc.contributor.author Li, S. S. en_US
dc.contributor.author Dang, H. Z. en_US
dc.contributor.author Wu, Y. N. en_US
dc.contributor.author Wang, L. B. en_US
dc.contributor.author Yang, K. X. en_US
dc.contributor.corporatename Chinese Academy of Sciences. Shanghai Institute of Technical Physics en_US
dc.contributor.corporatename Chinese Academy of Sciences. Graduate University en_US
dc.date.accessioned 2011-05-05T19:56:47Z
dc.date.available 2011-05-05T19:56:47Z
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 Phase characteristics of an inertance pulse tube cryocooler (IPTC) mainly include the mass flows, the pressure amplitudes, and the phase shifts between them. These are decisive factors for cooler performance, and are strongly affected by variations in the inertance tube design. In this work we describe theoretical analyses and experimental studies carried out on the phase characteristics of a large capacity high frequency single-stage IPTC developed in our laboratory and operated with a variety of inertance tube geometries at 80K. The theoretical analyses focused on investigating the amplitudes and phase angles at various locations of the whole system and established the phasor relationship of the cooler by combining a phasor-type analysis and a REGEN 3.2 analysis. The COP was calculated, and the influence on compressor efficiency was analyzed based on a force balance and Ohm’s law. The experimental study stressed evaluating the phase characteristics of the cooler by making a few easy measurements of the key parameters. The measurements included the compressor piston position using LVDT (linear variable differential transformer) rods, the pressure amplitudes—in the reservoir, at outlet of compressor, and the warm end of the pulse tube — using pressure transducers, and the phase angles between them. The measured results are compared with the theoretical predictions. Both the theoretical and experimental investigations imply that the change of the inertance characteristics have a great influence on the pressure difference, cooling power, the efficiency of the cold finger, and the efficiency of the compressor. It is concluded that optimization of the inertance tube should consider both the cold finger efficiency and the compressor efficiency at the same time, in order to achieve an optimum efficiency of the overall IPTC. en_US
dc.identifier.isbn 978-1-934021-02-6
dc.identifier.uri http://hdl.handle.net/1853/38785
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. Pulse tube analysis and experimental measurements en_US
dc.subject Pulse tube analysis and experimental measurements en_US
dc.subject Inertance pulse tube cryocoolers en_US
dc.subject Cooler performance en_US
dc.subject Cold finger efficiency en_US
dc.subject Compressor efficiency en_US
dc.title Investigation on the Phase Characteristics of High Frequency Inertance Pulse Tube Cryocoolers above 50 K. 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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