Experimental study on the performance of a novel solar water heating system with and without PCM
•A novel solar water heating system with inserted heat pipe and PCM is fabricated.•Different working modes can realize the seasonal maximum utilization of solar energy.•The system performance analysis is based on the study of a whole year measurements.•PCM can overcome the immediate influence of sol...
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| Veröffentlicht in: | Solar energy 2018-09, Vol.171, p.604-612 |
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| creator | Wu, Wei Dai, Suzhou Liu, Zundi Dou, Yiping Hua, Junye Li, Mengyang Wang, Xinyu Wang, Xiaoyu |
| description | •A novel solar water heating system with inserted heat pipe and PCM is fabricated.•Different working modes can realize the seasonal maximum utilization of solar energy.•The system performance analysis is based on the study of a whole year measurements.•PCM can overcome the immediate influence of solar radiation fluctuation on system.•The system with PCM can increase efficiency and shorten the time to heat water.
In this paper, a novel solar water heating system (SWHS), capable of reducing the impact of solar radiation intensity fluctuations, has been fabricated by using phase change materials (PCM) for thermal energy storage and inserted oscillating heat pipe (OHP) for performance improvement. Different working modes can be selected according to the solar radiation intensity in different seasons and different climate conditions. A test rig has also been made for the performance measurement of the system. The full-year measurement in all kinds of environmental conditions has been carried out for a couple of consecutive years, in Nanjing city of China. The system performances, such as collecting efficiency (CE), average collecting efficiency (ACE), coefficient of performance (COP) and exit water temperature (EWT), have been measured and compared between the systems with and without PCM. Under similar operation conditions, the system with PCM is illustrated to have much better performances. In daytime, CE fluctuation with PCM is over 30% less than that without PCM. At summer night, EWT with PCM can keep over 50 °C, while EWT without PCM has an obvious decrease. At winter night, COP with PCM is over 3.0 that can make EWT reach to 50 °C in a much shorter time than that without PCM. The system presented is proved to be effective and useful in the application of solar energy. |
| doi_str_mv | 10.1016/j.solener.2018.07.005 |
| format | Article |
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In this paper, a novel solar water heating system (SWHS), capable of reducing the impact of solar radiation intensity fluctuations, has been fabricated by using phase change materials (PCM) for thermal energy storage and inserted oscillating heat pipe (OHP) for performance improvement. Different working modes can be selected according to the solar radiation intensity in different seasons and different climate conditions. A test rig has also been made for the performance measurement of the system. The full-year measurement in all kinds of environmental conditions has been carried out for a couple of consecutive years, in Nanjing city of China. The system performances, such as collecting efficiency (CE), average collecting efficiency (ACE), coefficient of performance (COP) and exit water temperature (EWT), have been measured and compared between the systems with and without PCM. Under similar operation conditions, the system with PCM is illustrated to have much better performances. In daytime, CE fluctuation with PCM is over 30% less than that without PCM. At summer night, EWT with PCM can keep over 50 °C, while EWT without PCM has an obvious decrease. At winter night, COP with PCM is over 3.0 that can make EWT reach to 50 °C in a much shorter time than that without PCM. The system presented is proved to be effective and useful in the application of solar energy.</description><identifier>ISSN: 0038-092X</identifier><identifier>EISSN: 1471-1257</identifier><identifier>DOI: 10.1016/j.solener.2018.07.005</identifier><language>eng</language><publisher>New York: Elsevier Ltd</publisher><subject>Alternative energy sources ; Climatic conditions ; Coefficient of performance (COP) ; Collecting efficiency ; Energy storage ; Environmental conditions ; Heat pipes ; Night ; Performance measurement ; Phase change material ; Phase change materials ; Solar energy ; Solar heating ; Solar radiation ; Solar water heating system ; Thermal energy ; Variations ; Water heaters ; Water heating ; Water temperature</subject><ispartof>Solar energy, 2018-09, Vol.171, p.604-612</ispartof><rights>2018 Elsevier Ltd</rights><rights>Copyright Pergamon Press Inc. Sep 1, 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-21361e4c223d8d8cec3f93b7809e222ac4d59078a900d6ed51fa79b5c2a0e4eb3</citedby><cites>FETCH-LOGICAL-c337t-21361e4c223d8d8cec3f93b7809e222ac4d59078a900d6ed51fa79b5c2a0e4eb3</cites><orcidid>0000-0003-2265-7372</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.solener.2018.07.005$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27926,27927,45997</link.rule.ids></links><search><creatorcontrib>Wu, Wei</creatorcontrib><creatorcontrib>Dai, Suzhou</creatorcontrib><creatorcontrib>Liu, Zundi</creatorcontrib><creatorcontrib>Dou, Yiping</creatorcontrib><creatorcontrib>Hua, Junye</creatorcontrib><creatorcontrib>Li, Mengyang</creatorcontrib><creatorcontrib>Wang, Xinyu</creatorcontrib><creatorcontrib>Wang, Xiaoyu</creatorcontrib><title>Experimental study on the performance of a novel solar water heating system with and without PCM</title><title>Solar energy</title><description>•A novel solar water heating system with inserted heat pipe and PCM is fabricated.•Different working modes can realize the seasonal maximum utilization of solar energy.•The system performance analysis is based on the study of a whole year measurements.•PCM can overcome the immediate influence of solar radiation fluctuation on system.•The system with PCM can increase efficiency and shorten the time to heat water.
In this paper, a novel solar water heating system (SWHS), capable of reducing the impact of solar radiation intensity fluctuations, has been fabricated by using phase change materials (PCM) for thermal energy storage and inserted oscillating heat pipe (OHP) for performance improvement. Different working modes can be selected according to the solar radiation intensity in different seasons and different climate conditions. A test rig has also been made for the performance measurement of the system. The full-year measurement in all kinds of environmental conditions has been carried out for a couple of consecutive years, in Nanjing city of China. The system performances, such as collecting efficiency (CE), average collecting efficiency (ACE), coefficient of performance (COP) and exit water temperature (EWT), have been measured and compared between the systems with and without PCM. Under similar operation conditions, the system with PCM is illustrated to have much better performances. In daytime, CE fluctuation with PCM is over 30% less than that without PCM. At summer night, EWT with PCM can keep over 50 °C, while EWT without PCM has an obvious decrease. At winter night, COP with PCM is over 3.0 that can make EWT reach to 50 °C in a much shorter time than that without PCM. The system presented is proved to be effective and useful in the application of solar energy.</description><subject>Alternative energy sources</subject><subject>Climatic conditions</subject><subject>Coefficient of performance (COP)</subject><subject>Collecting efficiency</subject><subject>Energy storage</subject><subject>Environmental conditions</subject><subject>Heat pipes</subject><subject>Night</subject><subject>Performance measurement</subject><subject>Phase change material</subject><subject>Phase change materials</subject><subject>Solar energy</subject><subject>Solar heating</subject><subject>Solar radiation</subject><subject>Solar water heating system</subject><subject>Thermal energy</subject><subject>Variations</subject><subject>Water heaters</subject><subject>Water heating</subject><subject>Water temperature</subject><issn>0038-092X</issn><issn>1471-1257</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNqFkE9LAzEQxYMoWKsfQQh43nWSdJvsSaTUP1DRg4K3mCazdku7qUna2m9var17mmHmvRnej5BLBiUDNryel9EvsMNQcmCqBFkCVEekxwaSFYxX8pj0AIQqoObvp-QsxjkAk0zJHvkYf68wtEvsklnQmNZuR31H0wxpnjc-LE1nkfqGGtr5DWaNX5hAtyZhoDM0qe0-adzFhEu6bdOMms79Nn6d6Mvo6ZycNGYR8eKv9snb3fh19FBMnu8fR7eTwgohU8GZGDIcWM6FU05ZtKKpxVQqqJFzbuzAVTVIZWoAN0RXscbIelpZbgAHOBV9cnW4uwr-a40x6blfhy6_1JxxwdRQCZVV1UFlg48xYKNXObwJO81A72Hquf6DqfcwNUidYWbfzcGHOcKmzdtoW8xkXBvQJu18-8-FHyuRgTc</recordid><startdate>20180901</startdate><enddate>20180901</enddate><creator>Wu, Wei</creator><creator>Dai, Suzhou</creator><creator>Liu, Zundi</creator><creator>Dou, Yiping</creator><creator>Hua, Junye</creator><creator>Li, Mengyang</creator><creator>Wang, Xinyu</creator><creator>Wang, Xiaoyu</creator><general>Elsevier Ltd</general><general>Pergamon Press Inc</general><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><orcidid>https://orcid.org/0000-0003-2265-7372</orcidid></search><sort><creationdate>20180901</creationdate><title>Experimental study on the performance of a novel solar water heating system with and without PCM</title><author>Wu, Wei ; Dai, Suzhou ; Liu, Zundi ; Dou, Yiping ; Hua, Junye ; Li, Mengyang ; Wang, Xinyu ; Wang, Xiaoyu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-21361e4c223d8d8cec3f93b7809e222ac4d59078a900d6ed51fa79b5c2a0e4eb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Alternative energy sources</topic><topic>Climatic conditions</topic><topic>Coefficient of performance (COP)</topic><topic>Collecting efficiency</topic><topic>Energy storage</topic><topic>Environmental conditions</topic><topic>Heat pipes</topic><topic>Night</topic><topic>Performance measurement</topic><topic>Phase change material</topic><topic>Phase change materials</topic><topic>Solar energy</topic><topic>Solar heating</topic><topic>Solar radiation</topic><topic>Solar water heating system</topic><topic>Thermal energy</topic><topic>Variations</topic><topic>Water heaters</topic><topic>Water heating</topic><topic>Water temperature</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, Wei</creatorcontrib><creatorcontrib>Dai, Suzhou</creatorcontrib><creatorcontrib>Liu, Zundi</creatorcontrib><creatorcontrib>Dou, Yiping</creatorcontrib><creatorcontrib>Hua, Junye</creatorcontrib><creatorcontrib>Li, Mengyang</creatorcontrib><creatorcontrib>Wang, Xinyu</creatorcontrib><creatorcontrib>Wang, Xiaoyu</creatorcontrib><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><jtitle>Solar energy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, Wei</au><au>Dai, Suzhou</au><au>Liu, Zundi</au><au>Dou, Yiping</au><au>Hua, Junye</au><au>Li, Mengyang</au><au>Wang, Xinyu</au><au>Wang, Xiaoyu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Experimental study on the performance of a novel solar water heating system with and without PCM</atitle><jtitle>Solar energy</jtitle><date>2018-09-01</date><risdate>2018</risdate><volume>171</volume><spage>604</spage><epage>612</epage><pages>604-612</pages><issn>0038-092X</issn><eissn>1471-1257</eissn><abstract>•A novel solar water heating system with inserted heat pipe and PCM is fabricated.•Different working modes can realize the seasonal maximum utilization of solar energy.•The system performance analysis is based on the study of a whole year measurements.•PCM can overcome the immediate influence of solar radiation fluctuation on system.•The system with PCM can increase efficiency and shorten the time to heat water.
In this paper, a novel solar water heating system (SWHS), capable of reducing the impact of solar radiation intensity fluctuations, has been fabricated by using phase change materials (PCM) for thermal energy storage and inserted oscillating heat pipe (OHP) for performance improvement. Different working modes can be selected according to the solar radiation intensity in different seasons and different climate conditions. A test rig has also been made for the performance measurement of the system. The full-year measurement in all kinds of environmental conditions has been carried out for a couple of consecutive years, in Nanjing city of China. The system performances, such as collecting efficiency (CE), average collecting efficiency (ACE), coefficient of performance (COP) and exit water temperature (EWT), have been measured and compared between the systems with and without PCM. Under similar operation conditions, the system with PCM is illustrated to have much better performances. In daytime, CE fluctuation with PCM is over 30% less than that without PCM. At summer night, EWT with PCM can keep over 50 °C, while EWT without PCM has an obvious decrease. At winter night, COP with PCM is over 3.0 that can make EWT reach to 50 °C in a much shorter time than that without PCM. The system presented is proved to be effective and useful in the application of solar energy.</abstract><cop>New York</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.solener.2018.07.005</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0003-2265-7372</orcidid></addata></record> |
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| subjects | Alternative energy sources Climatic conditions Coefficient of performance (COP) Collecting efficiency Energy storage Environmental conditions Heat pipes Night Performance measurement Phase change material Phase change materials Solar energy Solar heating Solar radiation Solar water heating system Thermal energy Variations Water heaters Water heating Water temperature |
| title | Experimental study on the performance of a novel solar water heating system with and without PCM |
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