Experimental Investigation of Oscillating Heat Pipes
Operation requirements of oscillating heat pipes (OHPs) are proposed. Based on the requirements, OHPs with nonflammable fluorocarbon fluids, FC-72 and FC-75, as the working fluid are developed. The OHPs have an inner diameter of 1.75 mm, a total length of 446 mm, and 40 tubing turns. There are two c...
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| Veröffentlicht in: | Journal of thermophysics and heat transfer 2001-10, Vol.15 (4), p.395-400 |
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| container_title | Journal of thermophysics and heat transfer |
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| creator | Lin, Lanchao Ponnappan, Rengasamy Leland, John |
| description | Operation requirements of oscillating heat pipes (OHPs) are proposed. Based on the requirements, OHPs with nonflammable fluorocarbon fluids, FC-72 and FC-75, as the working fluid are developed. The OHPs have an inner diameter of 1.75 mm, a total length of 446 mm, and 40 tubing turns. There are two condensers on both outer sides and one evaporator in the middle of the OHPs. Thermal performance tests are conducted at various operating temperatures and heat rates. The working fluid fill ratio is varied. A high-performance OHP with FC-72 has been indicated for the first time. The FC-72 OHP can transport a 2040-W heat rate without dryout. The gravitational acceleration does not have a noticeable influence on the performance of the fluorocarbon OHP. The thermal performances of the fluorocarbon OHPs are compared with the case of an acetone OHP. (Author) |
| doi_str_mv | 10.2514/2.6641 |
| format | Article |
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Based on the requirements, OHPs with nonflammable fluorocarbon fluids, FC-72 and FC-75, as the working fluid are developed. The OHPs have an inner diameter of 1.75 mm, a total length of 446 mm, and 40 tubing turns. There are two condensers on both outer sides and one evaporator in the middle of the OHPs. Thermal performance tests are conducted at various operating temperatures and heat rates. The working fluid fill ratio is varied. A high-performance OHP with FC-72 has been indicated for the first time. The FC-72 OHP can transport a 2040-W heat rate without dryout. The gravitational acceleration does not have a noticeable influence on the performance of the fluorocarbon OHP. The thermal performances of the fluorocarbon OHPs are compared with the case of an acetone OHP. 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Based on the requirements, OHPs with nonflammable fluorocarbon fluids, FC-72 and FC-75, as the working fluid are developed. The OHPs have an inner diameter of 1.75 mm, a total length of 446 mm, and 40 tubing turns. There are two condensers on both outer sides and one evaporator in the middle of the OHPs. Thermal performance tests are conducted at various operating temperatures and heat rates. The working fluid fill ratio is varied. A high-performance OHP with FC-72 has been indicated for the first time. The FC-72 OHP can transport a 2040-W heat rate without dryout. The gravitational acceleration does not have a noticeable influence on the performance of the fluorocarbon OHP. The thermal performances of the fluorocarbon OHPs are compared with the case of an acetone OHP. (Author)</description><subject>Applied sciences</subject><subject>Devices using thermal energy</subject><subject>Energy</subject><subject>Energy. 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Thermal use of fuels</topic><topic>Exact sciences and technology</topic><topic>Heat exchangers (included heat transformers, condensers, cooling towers)</topic><topic>Heat pipes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lin, Lanchao</creatorcontrib><creatorcontrib>Ponnappan, Rengasamy</creatorcontrib><creatorcontrib>Leland, John</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of thermophysics and heat transfer</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lin, Lanchao</au><au>Ponnappan, Rengasamy</au><au>Leland, John</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Experimental Investigation of Oscillating Heat Pipes</atitle><jtitle>Journal of thermophysics and heat transfer</jtitle><date>2001-10-01</date><risdate>2001</risdate><volume>15</volume><issue>4</issue><spage>395</spage><epage>400</epage><pages>395-400</pages><issn>0887-8722</issn><eissn>1533-6808</eissn><coden>JTHTEO</coden><abstract>Operation requirements of oscillating heat pipes (OHPs) are proposed. Based on the requirements, OHPs with nonflammable fluorocarbon fluids, FC-72 and FC-75, as the working fluid are developed. The OHPs have an inner diameter of 1.75 mm, a total length of 446 mm, and 40 tubing turns. There are two condensers on both outer sides and one evaporator in the middle of the OHPs. Thermal performance tests are conducted at various operating temperatures and heat rates. The working fluid fill ratio is varied. A high-performance OHP with FC-72 has been indicated for the first time. The FC-72 OHP can transport a 2040-W heat rate without dryout. The gravitational acceleration does not have a noticeable influence on the performance of the fluorocarbon OHP. The thermal performances of the fluorocarbon OHPs are compared with the case of an acetone OHP. (Author)</abstract><cop>Reston, VA</cop><pub>American Institute of Aeronautics and Astronautics</pub><doi>10.2514/2.6641</doi><tpages>6</tpages></addata></record> |
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| identifier | ISSN: 0887-8722 |
| ispartof | Journal of thermophysics and heat transfer, 2001-10, Vol.15 (4), p.395-400 |
| issn | 0887-8722 1533-6808 |
| language | eng |
| recordid | cdi_proquest_journals_2311998043 |
| source | Alma/SFX Local Collection |
| subjects | Applied sciences Devices using thermal energy Energy Energy. Thermal use of fuels Exact sciences and technology Heat exchangers (included heat transformers, condensers, cooling towers) Heat pipes |
| title | Experimental Investigation of Oscillating Heat Pipes |
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