Experimental study on multi-split air conditioner with digital scroll compressor
A set of 10 horse powers (HP) multi-split air conditioner with a digital scroll compressor and a standard compressor was designed. The control strategy of compressor switching and the control model of compressor output capacity were presented. The output ratio of the digital compressor was determine...
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| Veröffentlicht in: | Applied thermal engineering 2011-10, Vol.31 (14), p.2449-2457 |
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| creator | Tu, Qiu Dong, Kaijun Zou, Deqiu Lin, Yongman |
| description | A set of 10 horse powers (HP) multi-split air conditioner with a digital scroll compressor and a standard compressor was designed. The control strategy of compressor switching and the control model of compressor output capacity were presented. The output ratio of the digital compressor was determined in the control strategy. Furthermore, in the control model of compressor output capacity, considering the pressure disturbance, a certain suction pressure range was used as the pressure control target to adjust the output capacity. Experiments show that the system ran unstably, the standard compressor frequently appeared on–off phenomenon, and some operation parameters such as the output ratio of the digital compressor, the opening of electric expansive valve (EEV), the cooling capacity and the air outlet temperature fluctuated. A new control model of the output capacity was proposed, in which the average suction pressure in an adjustment period was taken as the current pressure to regulate the output capacity. Experimental results demonstrate that the control model can be used to solve the frequent on–off phenomenon of the standard compressor and oscillation of the operation parameters, realize control accuracy of less than 0.2 °C deviation of the air outlet temperature.
► A set of 10 HP VRF AC with a digital scroll compressor has been designed. ► The control strategy of compressor switching and control model of compressor output capacity have been presented. ► The average suction pressure in a period can be taken as the current pressure to regulate the output capacity. ► The control strategy can realize reliable running, high control accuracy of air outlet temperature. |
| doi_str_mv | 10.1016/j.applthermaleng.2011.04.010 |
| format | Article |
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► A set of 10 HP VRF AC with a digital scroll compressor has been designed. ► The control strategy of compressor switching and control model of compressor output capacity have been presented. ► The average suction pressure in a period can be taken as the current pressure to regulate the output capacity. ► The control strategy can realize reliable running, high control accuracy of air outlet temperature.</description><identifier>ISSN: 1359-4311</identifier><identifier>DOI: 10.1016/j.applthermaleng.2011.04.010</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Air conditioners ; Applied sciences ; Compressors ; Digital ; Digital scroll compressor ; Energy ; Energy. Thermal use of fuels ; Engines and turbines ; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc ; Exact sciences and technology ; Heat transfer ; Mathematical models ; Multi-split air conditioner ; Outlets ; Output ratio ; Strategy ; Theoretical studies. Data and constants. Metering ; Thermal engineering ; Variable refrigerant flow (VRF)</subject><ispartof>Applied thermal engineering, 2011-10, Vol.31 (14), p.2449-2457</ispartof><rights>2011 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c392t-2b387c827078b7bc13910941d42e9230a0f6be76f1f494ffa00e06c25e508b703</citedby><cites>FETCH-LOGICAL-c392t-2b387c827078b7bc13910941d42e9230a0f6be76f1f494ffa00e06c25e508b703</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.applthermaleng.2011.04.010$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27928,27929,45999</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24403156$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Tu, Qiu</creatorcontrib><creatorcontrib>Dong, Kaijun</creatorcontrib><creatorcontrib>Zou, Deqiu</creatorcontrib><creatorcontrib>Lin, Yongman</creatorcontrib><title>Experimental study on multi-split air conditioner with digital scroll compressor</title><title>Applied thermal engineering</title><description>A set of 10 horse powers (HP) multi-split air conditioner with a digital scroll compressor and a standard compressor was designed. The control strategy of compressor switching and the control model of compressor output capacity were presented. The output ratio of the digital compressor was determined in the control strategy. Furthermore, in the control model of compressor output capacity, considering the pressure disturbance, a certain suction pressure range was used as the pressure control target to adjust the output capacity. Experiments show that the system ran unstably, the standard compressor frequently appeared on–off phenomenon, and some operation parameters such as the output ratio of the digital compressor, the opening of electric expansive valve (EEV), the cooling capacity and the air outlet temperature fluctuated. A new control model of the output capacity was proposed, in which the average suction pressure in an adjustment period was taken as the current pressure to regulate the output capacity. Experimental results demonstrate that the control model can be used to solve the frequent on–off phenomenon of the standard compressor and oscillation of the operation parameters, realize control accuracy of less than 0.2 °C deviation of the air outlet temperature.
► A set of 10 HP VRF AC with a digital scroll compressor has been designed. ► The control strategy of compressor switching and control model of compressor output capacity have been presented. ► The average suction pressure in a period can be taken as the current pressure to regulate the output capacity. ► The control strategy can realize reliable running, high control accuracy of air outlet temperature.</description><subject>Air conditioners</subject><subject>Applied sciences</subject><subject>Compressors</subject><subject>Digital</subject><subject>Digital scroll compressor</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>Heat transfer</subject><subject>Mathematical models</subject><subject>Multi-split air conditioner</subject><subject>Outlets</subject><subject>Output ratio</subject><subject>Strategy</subject><subject>Theoretical studies. Data and constants. Metering</subject><subject>Thermal engineering</subject><subject>Variable refrigerant flow (VRF)</subject><issn>1359-4311</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqNkD9PwzAQxTOARCl8hwwgpoQ720kaiQVVLSBVggFmy3UurSvnD7YL9NuT0gqJjemGe-_evV8UXSGkCJjfblLV9zasyTXKUrtKGSCmIFJAOIlGyLMyERzxLDr3fgOAbFKIUfQy--rJmYbaoGzsw7baxV0bN1sbTOJ7a0KsjIt111YmmK4lF3-asI4rszI_Du06a4d90zvyvnMX0WmtrKfL4xxHb_PZ6_QxWTw_PE3vF4nmJQsJW_JJoSesgGKyLJYaeYlQCqwEo5JxUFDnSyryGmtRirpWAAS5ZhllMBiAj6Obw93ede9b8kE2xmuyVrXUbb0sWc6RZWU-KO8OyuFV7x3Vsh8KK7eTCHLPTm7kX3Zyz06CkAO7wX59DFJeK1s71Wrjf28wIYBjto-ZH3Q0tP4w5KTXhlpNlXGkg6w687_Ab8pmkII</recordid><startdate>20111001</startdate><enddate>20111001</enddate><creator>Tu, Qiu</creator><creator>Dong, Kaijun</creator><creator>Zou, Deqiu</creator><creator>Lin, Yongman</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20111001</creationdate><title>Experimental study on multi-split air conditioner with digital scroll compressor</title><author>Tu, Qiu ; Dong, Kaijun ; Zou, Deqiu ; Lin, Yongman</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-2b387c827078b7bc13910941d42e9230a0f6be76f1f494ffa00e06c25e508b703</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Air conditioners</topic><topic>Applied sciences</topic><topic>Compressors</topic><topic>Digital</topic><topic>Digital scroll compressor</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>Heat transfer</topic><topic>Mathematical models</topic><topic>Multi-split air conditioner</topic><topic>Outlets</topic><topic>Output ratio</topic><topic>Strategy</topic><topic>Theoretical studies. Data and constants. Metering</topic><topic>Thermal engineering</topic><topic>Variable refrigerant flow (VRF)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tu, Qiu</creatorcontrib><creatorcontrib>Dong, Kaijun</creatorcontrib><creatorcontrib>Zou, Deqiu</creatorcontrib><creatorcontrib>Lin, Yongman</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>Civil Engineering Abstracts</collection><jtitle>Applied thermal engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tu, Qiu</au><au>Dong, Kaijun</au><au>Zou, Deqiu</au><au>Lin, Yongman</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Experimental study on multi-split air conditioner with digital scroll compressor</atitle><jtitle>Applied thermal engineering</jtitle><date>2011-10-01</date><risdate>2011</risdate><volume>31</volume><issue>14</issue><spage>2449</spage><epage>2457</epage><pages>2449-2457</pages><issn>1359-4311</issn><abstract>A set of 10 horse powers (HP) multi-split air conditioner with a digital scroll compressor and a standard compressor was designed. The control strategy of compressor switching and the control model of compressor output capacity were presented. The output ratio of the digital compressor was determined in the control strategy. Furthermore, in the control model of compressor output capacity, considering the pressure disturbance, a certain suction pressure range was used as the pressure control target to adjust the output capacity. Experiments show that the system ran unstably, the standard compressor frequently appeared on–off phenomenon, and some operation parameters such as the output ratio of the digital compressor, the opening of electric expansive valve (EEV), the cooling capacity and the air outlet temperature fluctuated. A new control model of the output capacity was proposed, in which the average suction pressure in an adjustment period was taken as the current pressure to regulate the output capacity. Experimental results demonstrate that the control model can be used to solve the frequent on–off phenomenon of the standard compressor and oscillation of the operation parameters, realize control accuracy of less than 0.2 °C deviation of the air outlet temperature.
► A set of 10 HP VRF AC with a digital scroll compressor has been designed. ► The control strategy of compressor switching and control model of compressor output capacity have been presented. ► The average suction pressure in a period can be taken as the current pressure to regulate the output capacity. ► The control strategy can realize reliable running, high control accuracy of air outlet temperature.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.applthermaleng.2011.04.010</doi><tpages>9</tpages></addata></record> |
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| subjects | Air conditioners Applied sciences Compressors Digital Digital scroll compressor Energy Energy. Thermal use of fuels Engines and turbines Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Heat transfer Mathematical models Multi-split air conditioner Outlets Output ratio Strategy Theoretical studies. Data and constants. Metering Thermal engineering Variable refrigerant flow (VRF) |
| title | Experimental study on multi-split air conditioner with digital scroll compressor |
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