Influence of compression-expansion effect on oscillating-flow heat transfer in a finned heat exchanger
Compression and expansion of a working gas due to the pressure oscillation of an oscillating flow can lead to a temperature variation of the working gas, which will affect the heat transfer in the oscillating flow. This study focuses on the impact of the compression-expansion effect, indicated by th...
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| Veröffentlicht in: | Journal of Zhejiang University. A. Science 2013-06, Vol.14 (6), p.427-434 |
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| container_title | Journal of Zhejiang University. A. Science |
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| creator | Tang, Ke Yu, Juan Jin, Tao Gan, Zhi-hua |
| description | Compression and expansion of a working gas due to the pressure oscillation of an oscillating flow can lead to a temperature variation of the working gas, which will affect the heat transfer in the oscillating flow. This study focuses on the impact of the compression-expansion effect, indicated by the pressure ratio, on the heat transfer in a finned heat exchanger under practical operating conditions of the ambient-temperature heat exchangers in Stirling-type pulse tube refrigerators. The experimental results summarized as the Nusselt number are presented for analysis. An increase in the pressure ratio can result in a marked rise in the Nusselt number, which indicates that the compression-expansion effect should be considered in characterizing the heat transfer of the oscillating flow, especially in the cases with a higher Valensi number and a lower maximum Reynolds number. |
| doi_str_mv | 10.1631/jzus.A1300076 |
| format | Article |
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This study focuses on the impact of the compression-expansion effect, indicated by the pressure ratio, on the heat transfer in a finned heat exchanger under practical operating conditions of the ambient-temperature heat exchangers in Stirling-type pulse tube refrigerators. The experimental results summarized as the Nusselt number are presented for analysis. An increase in the pressure ratio can result in a marked rise in the Nusselt number, which indicates that the compression-expansion effect should be considered in characterizing the heat transfer of the oscillating flow, especially in the cases with a higher Valensi number and a lower maximum Reynolds number.</description><identifier>ISSN: 1673-565X</identifier><identifier>EISSN: 1862-1775</identifier><identifier>DOI: 10.1631/jzus.A1300076</identifier><language>eng</language><publisher>Hangzhou: Zhejiang University Press</publisher><subject>Civil Engineering ; Classical and Continuum Physics ; Compressing ; Engineering ; Fluid dynamics ; Fluid flow ; Heat exchangers ; Heat transfer ; Industrial Chemistry/Chemical Engineering ; Mechanical Engineering ; Nusselt number ; Oscillating flow ; Pressure ratio</subject><ispartof>Journal of Zhejiang University. A. 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An increase in the pressure ratio can result in a marked rise in the Nusselt number, which indicates that the compression-expansion effect should be considered in characterizing the heat transfer of the oscillating flow, especially in the cases with a higher Valensi number and a lower maximum Reynolds number.</description><subject>Civil Engineering</subject><subject>Classical and Continuum Physics</subject><subject>Compressing</subject><subject>Engineering</subject><subject>Fluid dynamics</subject><subject>Fluid flow</subject><subject>Heat exchangers</subject><subject>Heat transfer</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Mechanical Engineering</subject><subject>Nusselt number</subject><subject>Oscillating flow</subject><subject>Pressure ratio</subject><issn>1673-565X</issn><issn>1862-1775</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp1kLtPwzAQxi0EEqUwspuNJcWOX2GsKh6VKrGAxBa5zrlNldqpnYjHX4-jFDam-6T73d13H0LXlMyoZPRu993H2ZwyQoiSJ2hCC5lnVClxmrRULBNSvJ-jixh3hAhFpJogu3S26cEZwN5i4_dtgBhr7zL4bLUbFAZrwXQ4KR9N3TS6q90ms43_wFvQHe5CAi0EXDussa2dg2rswKfZareBcInOrG4iXB3rFL09PrwunrPVy9NyMV9lhineZSy3Rc6oWYPmsNZKgWL3UgkuOakKJkDIZEbpqsi1MgUDIy1QIvkaTEU5ZVN0O-5tgz_0ELtyX0cDybMD38cyxUCFYoSrhGYjaoKPMYAt21DvdfgqKSmHPMshz_I3z8TPRj4mbvip3Pk-uPTNvwM3xwNb7zaHNPN3gUuSk4Lk7Af1iIXe</recordid><startdate>20130601</startdate><enddate>20130601</enddate><creator>Tang, Ke</creator><creator>Yu, Juan</creator><creator>Jin, Tao</creator><creator>Gan, Zhi-hua</creator><general>Zhejiang University Press</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7SP</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>20130601</creationdate><title>Influence of compression-expansion effect on oscillating-flow heat transfer in a finned heat exchanger</title><author>Tang, Ke ; Yu, Juan ; Jin, Tao ; Gan, Zhi-hua</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c374t-32f8231cbea4eba77e7396754640d835e56eff7ad82a7c83ec6fe1064becd1413</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Civil Engineering</topic><topic>Classical and Continuum Physics</topic><topic>Compressing</topic><topic>Engineering</topic><topic>Fluid dynamics</topic><topic>Fluid flow</topic><topic>Heat exchangers</topic><topic>Heat transfer</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Mechanical Engineering</topic><topic>Nusselt number</topic><topic>Oscillating flow</topic><topic>Pressure ratio</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tang, Ke</creatorcontrib><creatorcontrib>Yu, Juan</creatorcontrib><creatorcontrib>Jin, Tao</creatorcontrib><creatorcontrib>Gan, Zhi-hua</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Journal of Zhejiang University. 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| ispartof | Journal of Zhejiang University. A. Science, 2013-06, Vol.14 (6), p.427-434 |
| issn | 1673-565X 1862-1775 |
| language | eng |
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| source | Springer Journals; Alma/SFX Local Collection |
| subjects | Civil Engineering Classical and Continuum Physics Compressing Engineering Fluid dynamics Fluid flow Heat exchangers Heat transfer Industrial Chemistry/Chemical Engineering Mechanical Engineering Nusselt number Oscillating flow Pressure ratio |
| title | Influence of compression-expansion effect on oscillating-flow heat transfer in a finned heat exchanger |
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