Theoretical and basic experimental analysis on load adjustment of geothermal heat pump systems
In order to match the output capacity of a geothermal heat pump system (GHPS) with the actual load requirement, research has been conducted in searching for suitable adjusting methods for the GHPS and on the subsequent effects on the working parameters of the GHPS. Firstly, several methods are compa...
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Veröffentlicht in: | Energy conversion and management 2003, Vol.44 (1), p.1-9 |
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description | In order to match the output capacity of a geothermal heat pump system (GHPS) with the actual load requirement, research has been conducted in searching for suitable adjusting methods for the GHPS and on the subsequent effects on the working parameters of the GHPS. Firstly, several methods are compared, and it is found that the method of adjusting the compressor's rotation speed using a transducer is better than the others. Secondly, this method is experimented on a small scale GHPS at frequencies ranging from 30 to 55 Hz. The analysis of the experimental data reveals the relationships between the compressor frequency and other important parameters, such as coefficient of performance, heat capacity, cool capacity and compressor power input. The conclusions in the paper can serve as some guidance to the load adjustment of GHPS. |
doi_str_mv | 10.1016/S0196-8904(02)00050-X |
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Firstly, several methods are compared, and it is found that the method of adjusting the compressor's rotation speed using a transducer is better than the others. Secondly, this method is experimented on a small scale GHPS at frequencies ranging from 30 to 55 Hz. The analysis of the experimental data reveals the relationships between the compressor frequency and other important parameters, such as coefficient of performance, heat capacity, cool capacity and compressor power input. The conclusions in the paper can serve as some guidance to the load adjustment of GHPS.</description><identifier>ISSN: 0196-8904</identifier><identifier>EISSN: 1879-2227</identifier><identifier>DOI: 10.1016/S0196-8904(02)00050-X</identifier><identifier>CODEN: ECMADL</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Applied sciences ; Devices using thermal energy ; Energy ; Energy. Thermal use of fuels ; Exact sciences and technology ; Experimental study ; Frequency conversion ; Geothermal energy ; Geothermal heat pump ; Heat pumps ; Load/capacity adjustment ; Natural energy</subject><ispartof>Energy conversion and management, 2003, Vol.44 (1), p.1-9</ispartof><rights>2002 Elsevier Science Ltd</rights><rights>2002 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c368t-37dbdbcbe39123b4e0e2756548eb36ae07de02408460dfa3af143bb3812415de3</citedby><cites>FETCH-LOGICAL-c368t-37dbdbcbe39123b4e0e2756548eb36ae07de02408460dfa3af143bb3812415de3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S019689040200050X$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,4010,27900,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=13909207$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhao, L</creatorcontrib><creatorcontrib>Zhao, L.L</creatorcontrib><creatorcontrib>Zhang, Q</creatorcontrib><creatorcontrib>Ding, G.L</creatorcontrib><title>Theoretical and basic experimental analysis on load adjustment of geothermal heat pump systems</title><title>Energy conversion and management</title><description>In order to match the output capacity of a geothermal heat pump system (GHPS) with the actual load requirement, research has been conducted in searching for suitable adjusting methods for the GHPS and on the subsequent effects on the working parameters of the GHPS. Firstly, several methods are compared, and it is found that the method of adjusting the compressor's rotation speed using a transducer is better than the others. Secondly, this method is experimented on a small scale GHPS at frequencies ranging from 30 to 55 Hz. The analysis of the experimental data reveals the relationships between the compressor frequency and other important parameters, such as coefficient of performance, heat capacity, cool capacity and compressor power input. The conclusions in the paper can serve as some guidance to the load adjustment of GHPS.</description><subject>Applied sciences</subject><subject>Devices using thermal energy</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Exact sciences and technology</subject><subject>Experimental study</subject><subject>Frequency conversion</subject><subject>Geothermal energy</subject><subject>Geothermal heat pump</subject><subject>Heat pumps</subject><subject>Load/capacity adjustment</subject><subject>Natural energy</subject><issn>0196-8904</issn><issn>1879-2227</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><recordid>eNqFkE1rHDEMhk1ooNukP6HgS0t7mET-mK9TKCH9gEAOTSGnGo-tyTrMjCeWN2T_fWd3Q3vMSSA9kngfxj4IOBMgqvNfINqqaFrQn0F-AYASirsjthJN3RZSyvoNW_1D3rJ3RA8LpEqoVuzP7RpjwhycHbidPO8sBcfxecYURpzyvm2HLQXiceJDtJ5b_7ChvJvy2PN7jHmNaVzINdrM5804c9pSxpFO2XFvB8L3L_WE_f52dXv5o7i--f7z8ut14VTV5ELVvvOd61C1QqpOI6Csy6rUDXaqsgi1R5AaGl2B762yvdCq61QjpBalR3XCPh3uzik-bpCyGQM5HAY7YdyQEbpSWrXtApYH0KVIlLA385LTpq0RYHY2zd6m2akyIM3eprlb9j6-PLC0qOqTnVyg_8uqhVZCvXAXBw6XtE8BkyEXcHLoQ0KXjY_hlU9_AWBDiuU</recordid><startdate>2003</startdate><enddate>2003</enddate><creator>Zhao, L</creator><creator>Zhao, L.L</creator><creator>Zhang, Q</creator><creator>Ding, G.L</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope></search><sort><creationdate>2003</creationdate><title>Theoretical and basic experimental analysis on load adjustment of geothermal heat pump systems</title><author>Zhao, L ; Zhao, L.L ; Zhang, Q ; Ding, G.L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c368t-37dbdbcbe39123b4e0e2756548eb36ae07de02408460dfa3af143bb3812415de3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Applied sciences</topic><topic>Devices using thermal energy</topic><topic>Energy</topic><topic>Energy. Thermal use of fuels</topic><topic>Exact sciences and technology</topic><topic>Experimental study</topic><topic>Frequency conversion</topic><topic>Geothermal energy</topic><topic>Geothermal heat pump</topic><topic>Heat pumps</topic><topic>Load/capacity adjustment</topic><topic>Natural energy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhao, L</creatorcontrib><creatorcontrib>Zhao, L.L</creatorcontrib><creatorcontrib>Zhang, Q</creatorcontrib><creatorcontrib>Ding, G.L</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><jtitle>Energy conversion and management</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhao, L</au><au>Zhao, L.L</au><au>Zhang, Q</au><au>Ding, G.L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Theoretical and basic experimental analysis on load adjustment of geothermal heat pump systems</atitle><jtitle>Energy conversion and management</jtitle><date>2003</date><risdate>2003</risdate><volume>44</volume><issue>1</issue><spage>1</spage><epage>9</epage><pages>1-9</pages><issn>0196-8904</issn><eissn>1879-2227</eissn><coden>ECMADL</coden><abstract>In order to match the output capacity of a geothermal heat pump system (GHPS) with the actual load requirement, research has been conducted in searching for suitable adjusting methods for the GHPS and on the subsequent effects on the working parameters of the GHPS. Firstly, several methods are compared, and it is found that the method of adjusting the compressor's rotation speed using a transducer is better than the others. Secondly, this method is experimented on a small scale GHPS at frequencies ranging from 30 to 55 Hz. The analysis of the experimental data reveals the relationships between the compressor frequency and other important parameters, such as coefficient of performance, heat capacity, cool capacity and compressor power input. The conclusions in the paper can serve as some guidance to the load adjustment of GHPS.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/S0196-8904(02)00050-X</doi><tpages>9</tpages></addata></record> |
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subjects | Applied sciences Devices using thermal energy Energy Energy. Thermal use of fuels Exact sciences and technology Experimental study Frequency conversion Geothermal energy Geothermal heat pump Heat pumps Load/capacity adjustment Natural energy |
title | Theoretical and basic experimental analysis on load adjustment of geothermal heat pump systems |
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