Optimum operating conditions for an adsorption cryocooler: a case of activated carbon + nitrogen system
Adsorption cryocoolers are among the possible options for obtaining cryogenic temperatures, in particular for small cooling capacity applications such as cooling of infra red detectors. They need to be optimized for liquid yield. The performance of thermal compressors therein pivots around the adsor...
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| Veröffentlicht in: | Cryogenics (Guildford) 2005-03, Vol.45 (3), p.193-197 |
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| container_title | Cryogenics (Guildford) |
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| creator | Rao, Radhika Rani Prasad, Madhu Srinivasan, Kandadai |
| description | Adsorption cryocoolers are among the possible options for obtaining cryogenic temperatures, in particular for small cooling capacity applications such as cooling of infra red detectors. They need to be optimized for liquid yield. The performance of thermal compressors therein pivots around the adsorption characteristics of the adsorbent
+
adsorbate combination and how effectively one could pack requisite amounts of adsorbent into a given volume of the compressor housing. In addition, the overall performance of the cooler is a function of limits of operating temperatures and pressures across the compressor. This paper proposes a performance indicator—the product of liquid yield and the uptake efficiency of the compressor—and evaluates its values for various possible operating conditions for one specimen of activated carbon. It is shown that there is a limited domain of operation and that there is a condition of best performance within that domain. |
| doi_str_mv | 10.1016/j.cryogenics.2004.10.003 |
| format | Article |
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+
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+
adsorbate combination and how effectively one could pack requisite amounts of adsorbent into a given volume of the compressor housing. In addition, the overall performance of the cooler is a function of limits of operating temperatures and pressures across the compressor. This paper proposes a performance indicator—the product of liquid yield and the uptake efficiency of the compressor—and evaluates its values for various possible operating conditions for one specimen of activated carbon. It is shown that there is a limited domain of operation and that there is a condition of best performance within that domain.</description><subject>Applied sciences</subject><subject>Cryogenics</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Engines and turbines</subject><subject>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</subject><subject>Exact sciences and technology</subject><subject>Refrigerating engineering. Cryogenics. Food conservation</subject><issn>0011-2275</issn><issn>1879-2235</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqFkUtr3DAUhUVpodO0_0GbdlNmqodly921IX1AIJvshXx9PWiwJVdXE5h_X5kJZJmVxLnf0bnoMMalOEgh22-nA-RLOmIMQAclRFPlgxD6DdtJ2_V7pbR5y3ZCSFnvnXnPPhCdRAVVq3bs-LCWsJwXnlbMvoR45JDiGEpIkfiUMveR-5FSXjeJb2GQ0oz5O_ccPCFPE_dQwpMvOFYlDxX7ymMoeVuL04UKLh_Zu8nPhJ-ezxv2-Ovu8fbP_v7h99_bH_d70MqUPRrTdsqD7wcxiU4PUoE1YzdIDVoI7KwFBLCtHEYrAcyghB4mA8PUIIz6hn25Prvm9O-MVNwSCHCefcR0Jqd6aY1t-tdBa_qmbUQF7RWEnIgyTm7NYfH54qRwWwPu5F4acFsD26Q2UK2fnzM8gZ-n7CMEevG3jVZNYyv388ph_ZingNkRBIyAY8gIxY0pvB72H3l8o9g</recordid><startdate>200503</startdate><enddate>200503</enddate><creator>Rao, Radhika Rani</creator><creator>Prasad, Madhu</creator><creator>Srinivasan, Kandadai</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>7U5</scope><scope>8BQ</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>200503</creationdate><title>Optimum operating conditions for an adsorption cryocooler: a case of activated carbon + nitrogen system</title><author>Rao, Radhika Rani ; Prasad, Madhu ; Srinivasan, Kandadai</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c325t-e55672aca9b0f073b12c85d7b13c300e788cecc861bd81cc5b203bf5cbf4ecd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Applied sciences</topic><topic>Cryogenics</topic><topic>Energy</topic><topic>Energy. Thermal use of fuels</topic><topic>Engines and turbines</topic><topic>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</topic><topic>Exact sciences and technology</topic><topic>Refrigerating engineering. Cryogenics. Food conservation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rao, Radhika Rani</creatorcontrib><creatorcontrib>Prasad, Madhu</creatorcontrib><creatorcontrib>Srinivasan, Kandadai</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Cryogenics (Guildford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rao, Radhika Rani</au><au>Prasad, Madhu</au><au>Srinivasan, Kandadai</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Optimum operating conditions for an adsorption cryocooler: a case of activated carbon + nitrogen system</atitle><jtitle>Cryogenics (Guildford)</jtitle><date>2005-03</date><risdate>2005</risdate><volume>45</volume><issue>3</issue><spage>193</spage><epage>197</epage><pages>193-197</pages><issn>0011-2275</issn><eissn>1879-2235</eissn><coden>CRYOAX</coden><abstract>Adsorption cryocoolers are among the possible options for obtaining cryogenic temperatures, in particular for small cooling capacity applications such as cooling of infra red detectors. They need to be optimized for liquid yield. The performance of thermal compressors therein pivots around the adsorption characteristics of the adsorbent
+
adsorbate combination and how effectively one could pack requisite amounts of adsorbent into a given volume of the compressor housing. In addition, the overall performance of the cooler is a function of limits of operating temperatures and pressures across the compressor. This paper proposes a performance indicator—the product of liquid yield and the uptake efficiency of the compressor—and evaluates its values for various possible operating conditions for one specimen of activated carbon. It is shown that there is a limited domain of operation and that there is a condition of best performance within that domain.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.cryogenics.2004.10.003</doi><tpages>5</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Applied sciences Cryogenics Energy Energy. Thermal use of fuels Engines and turbines Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Refrigerating engineering. Cryogenics. Food conservation |
| title | Optimum operating conditions for an adsorption cryocooler: a case of activated carbon + nitrogen system |
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