Experimental research on a new solar pump-free lithium bromide absorption refrigeration system with a second generator
This paper is concerned with experimental research on a new solar pump-free lithium bromide absorption refrigeration system with a second generator. By using the second generator together with a lunate thermosiphon elevation tube, the required minimum driving temperature of the heat source is only 6...
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| Veröffentlicht in: | Solar energy 2008, Vol.82 (1), p.33-42 |
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| creator | Yaxiu, Gu Yuyuan, Wu Xin, Ke |
| description | This paper is concerned with experimental research on a new solar pump-free lithium bromide absorption refrigeration system with a second generator. By using the second generator together with a lunate thermosiphon elevation tube, the required minimum driving temperature of the heat source is only 68
°C compared to above 100
°C in traditional absorption refrigeration systems. Based on the horizontal-tube falling-film method, the performance of the absorber can be enhanced by the second generator due to an increase in the differential concentration of the solution between the inlet and the outlet of the absorber and an increase in the temperature difference between the inlet and the outlet of the cooling water in the absorber. The yield of condensate with the second generator open is increased by 68% compared to that with the second generator closed. The performance of the evaporator is significantly improved due to the increase in temperature drop of the chilled water and the decrease in the outlet temperature of the chilled water. This leads to an improvement of the performance of the overall refrigeration system. The maximum coefficient of performance (COP) approaches 0.787. |
| doi_str_mv | 10.1016/j.solener.2007.05.001 |
| format | Article |
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°C compared to above 100
°C in traditional absorption refrigeration systems. Based on the horizontal-tube falling-film method, the performance of the absorber can be enhanced by the second generator due to an increase in the differential concentration of the solution between the inlet and the outlet of the absorber and an increase in the temperature difference between the inlet and the outlet of the cooling water in the absorber. The yield of condensate with the second generator open is increased by 68% compared to that with the second generator closed. The performance of the evaporator is significantly improved due to the increase in temperature drop of the chilled water and the decrease in the outlet temperature of the chilled water. This leads to an improvement of the performance of the overall refrigeration system. The maximum coefficient of performance (COP) approaches 0.787.</description><identifier>ISSN: 0038-092X</identifier><identifier>EISSN: 1471-1257</identifier><identifier>DOI: 10.1016/j.solener.2007.05.001</identifier><identifier>CODEN: SRENA4</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Absorption refrigeration system ; Applied sciences ; Energy ; Exact sciences and technology ; Experiments ; Falling film ; Generators ; Lithium ; Lithium bromide ; Miscellaneous ; Moisture absorption ; Natural energy ; Pump-free ; Refrigeration ; Second generator ; Solar energy</subject><ispartof>Solar energy, 2008, Vol.82 (1), p.33-42</ispartof><rights>2007 Elsevier Ltd</rights><rights>2008 INIST-CNRS</rights><rights>Copyright Pergamon Press Inc. Jan 2008</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c469t-b14b47bc5baa38f2da86cfffb499a5358b44e0fe6922a4aa30a1acd1b14f79243</citedby><cites>FETCH-LOGICAL-c469t-b14b47bc5baa38f2da86cfffb499a5358b44e0fe6922a4aa30a1acd1b14f79243</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.solener.2007.05.001$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,778,782,3539,4012,27906,27907,27908,45978</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20031669$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Yaxiu, Gu</creatorcontrib><creatorcontrib>Yuyuan, Wu</creatorcontrib><creatorcontrib>Xin, Ke</creatorcontrib><title>Experimental research on a new solar pump-free lithium bromide absorption refrigeration system with a second generator</title><title>Solar energy</title><description>This paper is concerned with experimental research on a new solar pump-free lithium bromide absorption refrigeration system with a second generator. By using the second generator together with a lunate thermosiphon elevation tube, the required minimum driving temperature of the heat source is only 68
°C compared to above 100
°C in traditional absorption refrigeration systems. Based on the horizontal-tube falling-film method, the performance of the absorber can be enhanced by the second generator due to an increase in the differential concentration of the solution between the inlet and the outlet of the absorber and an increase in the temperature difference between the inlet and the outlet of the cooling water in the absorber. The yield of condensate with the second generator open is increased by 68% compared to that with the second generator closed. The performance of the evaporator is significantly improved due to the increase in temperature drop of the chilled water and the decrease in the outlet temperature of the chilled water. This leads to an improvement of the performance of the overall refrigeration system. The maximum coefficient of performance (COP) approaches 0.787.</description><subject>Absorption refrigeration system</subject><subject>Applied sciences</subject><subject>Energy</subject><subject>Exact sciences and technology</subject><subject>Experiments</subject><subject>Falling film</subject><subject>Generators</subject><subject>Lithium</subject><subject>Lithium bromide</subject><subject>Miscellaneous</subject><subject>Moisture absorption</subject><subject>Natural energy</subject><subject>Pump-free</subject><subject>Refrigeration</subject><subject>Second generator</subject><subject>Solar energy</subject><issn>0038-092X</issn><issn>1471-1257</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqFkU-L1TAUxYMo-Bz9CEIQdNeapGmTrkSGUQcG3Ci4C7fpzUwebVKTdv58e_PmPVzMZlaXwO-ce3MOIe85qznj3ed9neOEAVMtGFM1a2vG-Auy41LxiotWvSQ7xhpdsV78eU3e5LwvgOJa7cjtxf2Cyc8YVphowoyQ7A2NgQINeEeLMyS6bPNSuYRIJ7_e-G2mQ4qzH5HCkGNaVl8ECV3y15jg8ZUf8oozvSt8scpoYxjp9eFKWGN6S145mDK-O80z8vvbxa_zH9XVz--X51-vKiu7fq0GLgepBtsOAI12YgTdWefcIPse2qbVg5TIHHa9ECALw4CDHXnROdUL2ZyRT0ffJcW_G-bVzD5bnCYIGLdsBNNSK62eBbnUXdN0fQE_PAH3cUuhfMKIhquOKc4L1B4hm2LOJRizlIwhPRjOzKEzszenzsyhM8NaUyopuo8nc8gWJpcgWJ__iwva8O7xiC9HDkt2t764ZOsxWBx9QruaMfpnNv0DhySyQQ</recordid><startdate>2008</startdate><enddate>2008</enddate><creator>Yaxiu, Gu</creator><creator>Yuyuan, Wu</creator><creator>Xin, Ke</creator><general>Elsevier Ltd</general><general>Elsevier</general><general>Pergamon Press Inc</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7ST</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>KR7</scope><scope>L7M</scope><scope>SOI</scope><scope>7U6</scope></search><sort><creationdate>2008</creationdate><title>Experimental research on a new solar pump-free lithium bromide absorption refrigeration system with a second generator</title><author>Yaxiu, Gu ; Yuyuan, Wu ; Xin, Ke</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c469t-b14b47bc5baa38f2da86cfffb499a5358b44e0fe6922a4aa30a1acd1b14f79243</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Absorption refrigeration system</topic><topic>Applied sciences</topic><topic>Energy</topic><topic>Exact sciences and technology</topic><topic>Experiments</topic><topic>Falling film</topic><topic>Generators</topic><topic>Lithium</topic><topic>Lithium bromide</topic><topic>Miscellaneous</topic><topic>Moisture absorption</topic><topic>Natural energy</topic><topic>Pump-free</topic><topic>Refrigeration</topic><topic>Second generator</topic><topic>Solar energy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yaxiu, Gu</creatorcontrib><creatorcontrib>Yuyuan, Wu</creatorcontrib><creatorcontrib>Xin, Ke</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Environment Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><collection>Sustainability Science Abstracts</collection><jtitle>Solar energy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yaxiu, Gu</au><au>Yuyuan, Wu</au><au>Xin, Ke</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Experimental research on a new solar pump-free lithium bromide absorption refrigeration system with a second generator</atitle><jtitle>Solar energy</jtitle><date>2008</date><risdate>2008</risdate><volume>82</volume><issue>1</issue><spage>33</spage><epage>42</epage><pages>33-42</pages><issn>0038-092X</issn><eissn>1471-1257</eissn><coden>SRENA4</coden><abstract>This paper is concerned with experimental research on a new solar pump-free lithium bromide absorption refrigeration system with a second generator. By using the second generator together with a lunate thermosiphon elevation tube, the required minimum driving temperature of the heat source is only 68
°C compared to above 100
°C in traditional absorption refrigeration systems. Based on the horizontal-tube falling-film method, the performance of the absorber can be enhanced by the second generator due to an increase in the differential concentration of the solution between the inlet and the outlet of the absorber and an increase in the temperature difference between the inlet and the outlet of the cooling water in the absorber. The yield of condensate with the second generator open is increased by 68% compared to that with the second generator closed. The performance of the evaporator is significantly improved due to the increase in temperature drop of the chilled water and the decrease in the outlet temperature of the chilled water. This leads to an improvement of the performance of the overall refrigeration system. The maximum coefficient of performance (COP) approaches 0.787.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.solener.2007.05.001</doi><tpages>10</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete - AutoHoldings |
| subjects | Absorption refrigeration system Applied sciences Energy Exact sciences and technology Experiments Falling film Generators Lithium Lithium bromide Miscellaneous Moisture absorption Natural energy Pump-free Refrigeration Second generator Solar energy |
| title | Experimental research on a new solar pump-free lithium bromide absorption refrigeration system with a second generator |
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