The efficiency of high-level water collecting cooling tower with the installation of cross wall affect by the evolution of aerodynamic field

•The evolution characteristic of the aerodynamic field below HWCDs was studied.•The impact of aerodynamic field on the tower cooling performance was clarified.•The effects of cross wall on the tower performance were comprehensively expounded.•The range of optimum cross wall porosity and relevant imp...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Applied thermal engineering 2019-10, Vol.161, p.114181, Article 114181
Hauptverfasser: Chen, Guangan, Zhao, Yuanbin, Li, Wendong, Ge, Wenjing
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page 114181
container_title Applied thermal engineering
container_volume 161
creator Chen, Guangan
Zhao, Yuanbin
Li, Wendong
Ge, Wenjing
description •The evolution characteristic of the aerodynamic field below HWCDs was studied.•The impact of aerodynamic field on the tower cooling performance was clarified.•The effects of cross wall on the tower performance were comprehensively expounded.•The range of optimum cross wall porosity and relevant impact factors were found.•The reason of different impermeable wall effect in HNDWCT and UNDWCT was analyzed. The aerodynamic field around high-level water collecting natural draft wet cooling tower (HNDWCT), especially that below its special high-level water collecting devices (HWCDs), strongly affects the tower efficiency. Therefore, the aerodynamic fields below HWCDs and its evolution characteristics have been studied, then the corresponding impact on the performance of HNDWCT has been clarified in detail. The results demonstrate that the incidence angle and speed of crosswind have great influence on the air flow state below HWCDs, thus the air distribution in heat and mass transfer zones and air mass flow rate through tower, resulting in the degradation of tower cooling performance. To mitigate the adverse effect of crosswind on tower cooling performance, cross wall has been investigated as a means to improve tower air flow structure. It has been found that the cross wall with appropriate porosity is beneficial to increase the tower efficiency. While, the optimum porosity depends on the crosswind speed and its incidence angle, which ranges from approximately 0.33–0.53. Furthermore, the structure of heat and mass transfer zones of HNDWCT, especially the rain zone, are different with that of usual natural draft wet cooling tower (UNDWCT), which causes the different effect of impermeable cross wall.
doi_str_mv 10.1016/j.applthermaleng.2019.114181
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2310281961</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S1359431119326377</els_id><sourcerecordid>2310281961</sourcerecordid><originalsourceid>FETCH-LOGICAL-c358t-174eae46c7d98c34bba555ca07c1b503ac680f456be3cd4b1685f65dab9219333</originalsourceid><addsrcrecordid>eNqNkM1OwzAQhCMEElB4B0twTfHGsZNIXBDiT0LiAmfLcdaNKzcujtuq78BD47Zw4MZpV9qZWc2XZddAp0BB3Mynarl0scewUA6H2bSg0EwBSqjhKDuDumI5F1Qcp53xJi8ZwGl2Po5zSqGoq_Is-3rvkaAxVlsc9JZ4Q3o763OHa3RkoyIGor1zqKMdZmn1bjej36TDxsaepPfEDmNUzqlo_bCL0MGPY3I7R5QxyUva7V6Ia-9WvyqFwXfbQS2sJsai6y6yE6PciJc_c5J9PD683z_nr29PL_d3r7lmvI45VCUqLIWuuqbWrGxbxTnXilYaWk6Z0qKmpuSiRaa7sgVRcyN4p9qmgIYxNsmuDrnL4D9XOEY596swpJeyYECLGhoBSXV7UO3bBDRyGexCha0EKnf85Vz-5S93_OWBf7I_HuyYmqwtBjnuGWNnQyIiO2__F_QNcfGaPg</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2310281961</pqid></control><display><type>article</type><title>The efficiency of high-level water collecting cooling tower with the installation of cross wall affect by the evolution of aerodynamic field</title><source>Elsevier ScienceDirect Journals Complete</source><creator>Chen, Guangan ; Zhao, Yuanbin ; Li, Wendong ; Ge, Wenjing</creator><creatorcontrib>Chen, Guangan ; Zhao, Yuanbin ; Li, Wendong ; Ge, Wenjing</creatorcontrib><description>•The evolution characteristic of the aerodynamic field below HWCDs was studied.•The impact of aerodynamic field on the tower cooling performance was clarified.•The effects of cross wall on the tower performance were comprehensively expounded.•The range of optimum cross wall porosity and relevant impact factors were found.•The reason of different impermeable wall effect in HNDWCT and UNDWCT was analyzed. The aerodynamic field around high-level water collecting natural draft wet cooling tower (HNDWCT), especially that below its special high-level water collecting devices (HWCDs), strongly affects the tower efficiency. Therefore, the aerodynamic fields below HWCDs and its evolution characteristics have been studied, then the corresponding impact on the performance of HNDWCT has been clarified in detail. The results demonstrate that the incidence angle and speed of crosswind have great influence on the air flow state below HWCDs, thus the air distribution in heat and mass transfer zones and air mass flow rate through tower, resulting in the degradation of tower cooling performance. To mitigate the adverse effect of crosswind on tower cooling performance, cross wall has been investigated as a means to improve tower air flow structure. It has been found that the cross wall with appropriate porosity is beneficial to increase the tower efficiency. While, the optimum porosity depends on the crosswind speed and its incidence angle, which ranges from approximately 0.33–0.53. Furthermore, the structure of heat and mass transfer zones of HNDWCT, especially the rain zone, are different with that of usual natural draft wet cooling tower (UNDWCT), which causes the different effect of impermeable cross wall.</description><identifier>ISSN: 1359-4311</identifier><identifier>EISSN: 1873-5606</identifier><identifier>DOI: 10.1016/j.applthermaleng.2019.114181</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Aerodynamic field ; Aerodynamics ; Air flow ; Cooling ; Cooling performance ; Cooling rate ; Cooling towers ; Cross wall porosity ; Crosswinds ; Draft (gas flow) ; Efficiency ; Evolution ; Heat transfer ; High-level water collecting natural draft cooling tower (HNDWCT) ; Incidence angle ; Mass flow rate ; Mass transfer ; Porosity ; Vortex evolution ; Wind effects</subject><ispartof>Applied thermal engineering, 2019-10, Vol.161, p.114181, Article 114181</ispartof><rights>2019 Elsevier Ltd</rights><rights>Copyright Elsevier BV Oct 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c358t-174eae46c7d98c34bba555ca07c1b503ac680f456be3cd4b1685f65dab9219333</citedby><cites>FETCH-LOGICAL-c358t-174eae46c7d98c34bba555ca07c1b503ac680f456be3cd4b1685f65dab9219333</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.2019.114181$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Chen, Guangan</creatorcontrib><creatorcontrib>Zhao, Yuanbin</creatorcontrib><creatorcontrib>Li, Wendong</creatorcontrib><creatorcontrib>Ge, Wenjing</creatorcontrib><title>The efficiency of high-level water collecting cooling tower with the installation of cross wall affect by the evolution of aerodynamic field</title><title>Applied thermal engineering</title><description>•The evolution characteristic of the aerodynamic field below HWCDs was studied.•The impact of aerodynamic field on the tower cooling performance was clarified.•The effects of cross wall on the tower performance were comprehensively expounded.•The range of optimum cross wall porosity and relevant impact factors were found.•The reason of different impermeable wall effect in HNDWCT and UNDWCT was analyzed. The aerodynamic field around high-level water collecting natural draft wet cooling tower (HNDWCT), especially that below its special high-level water collecting devices (HWCDs), strongly affects the tower efficiency. Therefore, the aerodynamic fields below HWCDs and its evolution characteristics have been studied, then the corresponding impact on the performance of HNDWCT has been clarified in detail. The results demonstrate that the incidence angle and speed of crosswind have great influence on the air flow state below HWCDs, thus the air distribution in heat and mass transfer zones and air mass flow rate through tower, resulting in the degradation of tower cooling performance. To mitigate the adverse effect of crosswind on tower cooling performance, cross wall has been investigated as a means to improve tower air flow structure. It has been found that the cross wall with appropriate porosity is beneficial to increase the tower efficiency. While, the optimum porosity depends on the crosswind speed and its incidence angle, which ranges from approximately 0.33–0.53. Furthermore, the structure of heat and mass transfer zones of HNDWCT, especially the rain zone, are different with that of usual natural draft wet cooling tower (UNDWCT), which causes the different effect of impermeable cross wall.</description><subject>Aerodynamic field</subject><subject>Aerodynamics</subject><subject>Air flow</subject><subject>Cooling</subject><subject>Cooling performance</subject><subject>Cooling rate</subject><subject>Cooling towers</subject><subject>Cross wall porosity</subject><subject>Crosswinds</subject><subject>Draft (gas flow)</subject><subject>Efficiency</subject><subject>Evolution</subject><subject>Heat transfer</subject><subject>High-level water collecting natural draft cooling tower (HNDWCT)</subject><subject>Incidence angle</subject><subject>Mass flow rate</subject><subject>Mass transfer</subject><subject>Porosity</subject><subject>Vortex evolution</subject><subject>Wind effects</subject><issn>1359-4311</issn><issn>1873-5606</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqNkM1OwzAQhCMEElB4B0twTfHGsZNIXBDiT0LiAmfLcdaNKzcujtuq78BD47Zw4MZpV9qZWc2XZddAp0BB3Mynarl0scewUA6H2bSg0EwBSqjhKDuDumI5F1Qcp53xJi8ZwGl2Po5zSqGoq_Is-3rvkaAxVlsc9JZ4Q3o763OHa3RkoyIGor1zqKMdZmn1bjej36TDxsaepPfEDmNUzqlo_bCL0MGPY3I7R5QxyUva7V6Ia-9WvyqFwXfbQS2sJsai6y6yE6PciJc_c5J9PD683z_nr29PL_d3r7lmvI45VCUqLIWuuqbWrGxbxTnXilYaWk6Z0qKmpuSiRaa7sgVRcyN4p9qmgIYxNsmuDrnL4D9XOEY596swpJeyYECLGhoBSXV7UO3bBDRyGexCha0EKnf85Vz-5S93_OWBf7I_HuyYmqwtBjnuGWNnQyIiO2__F_QNcfGaPg</recordid><startdate>201910</startdate><enddate>201910</enddate><creator>Chen, Guangan</creator><creator>Zhao, Yuanbin</creator><creator>Li, Wendong</creator><creator>Ge, Wenjing</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>201910</creationdate><title>The efficiency of high-level water collecting cooling tower with the installation of cross wall affect by the evolution of aerodynamic field</title><author>Chen, Guangan ; Zhao, Yuanbin ; Li, Wendong ; Ge, Wenjing</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c358t-174eae46c7d98c34bba555ca07c1b503ac680f456be3cd4b1685f65dab9219333</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Aerodynamic field</topic><topic>Aerodynamics</topic><topic>Air flow</topic><topic>Cooling</topic><topic>Cooling performance</topic><topic>Cooling rate</topic><topic>Cooling towers</topic><topic>Cross wall porosity</topic><topic>Crosswinds</topic><topic>Draft (gas flow)</topic><topic>Efficiency</topic><topic>Evolution</topic><topic>Heat transfer</topic><topic>High-level water collecting natural draft cooling tower (HNDWCT)</topic><topic>Incidence angle</topic><topic>Mass flow rate</topic><topic>Mass transfer</topic><topic>Porosity</topic><topic>Vortex evolution</topic><topic>Wind effects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Guangan</creatorcontrib><creatorcontrib>Zhao, Yuanbin</creatorcontrib><creatorcontrib>Li, Wendong</creatorcontrib><creatorcontrib>Ge, Wenjing</creatorcontrib><collection>CrossRef</collection><collection>Mechanical &amp; 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>Chen, Guangan</au><au>Zhao, Yuanbin</au><au>Li, Wendong</au><au>Ge, Wenjing</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The efficiency of high-level water collecting cooling tower with the installation of cross wall affect by the evolution of aerodynamic field</atitle><jtitle>Applied thermal engineering</jtitle><date>2019-10</date><risdate>2019</risdate><volume>161</volume><spage>114181</spage><pages>114181-</pages><artnum>114181</artnum><issn>1359-4311</issn><eissn>1873-5606</eissn><abstract>•The evolution characteristic of the aerodynamic field below HWCDs was studied.•The impact of aerodynamic field on the tower cooling performance was clarified.•The effects of cross wall on the tower performance were comprehensively expounded.•The range of optimum cross wall porosity and relevant impact factors were found.•The reason of different impermeable wall effect in HNDWCT and UNDWCT was analyzed. The aerodynamic field around high-level water collecting natural draft wet cooling tower (HNDWCT), especially that below its special high-level water collecting devices (HWCDs), strongly affects the tower efficiency. Therefore, the aerodynamic fields below HWCDs and its evolution characteristics have been studied, then the corresponding impact on the performance of HNDWCT has been clarified in detail. The results demonstrate that the incidence angle and speed of crosswind have great influence on the air flow state below HWCDs, thus the air distribution in heat and mass transfer zones and air mass flow rate through tower, resulting in the degradation of tower cooling performance. To mitigate the adverse effect of crosswind on tower cooling performance, cross wall has been investigated as a means to improve tower air flow structure. It has been found that the cross wall with appropriate porosity is beneficial to increase the tower efficiency. While, the optimum porosity depends on the crosswind speed and its incidence angle, which ranges from approximately 0.33–0.53. Furthermore, the structure of heat and mass transfer zones of HNDWCT, especially the rain zone, are different with that of usual natural draft wet cooling tower (UNDWCT), which causes the different effect of impermeable cross wall.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.applthermaleng.2019.114181</doi></addata></record>
fulltext fulltext
identifier ISSN: 1359-4311
ispartof Applied thermal engineering, 2019-10, Vol.161, p.114181, Article 114181
issn 1359-4311
1873-5606
language eng
recordid cdi_proquest_journals_2310281961
source Elsevier ScienceDirect Journals Complete
subjects Aerodynamic field
Aerodynamics
Air flow
Cooling
Cooling performance
Cooling rate
Cooling towers
Cross wall porosity
Crosswinds
Draft (gas flow)
Efficiency
Evolution
Heat transfer
High-level water collecting natural draft cooling tower (HNDWCT)
Incidence angle
Mass flow rate
Mass transfer
Porosity
Vortex evolution
Wind effects
title The efficiency of high-level water collecting cooling tower with the installation of cross wall affect by the evolution of aerodynamic field
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-25T18%3A35%3A28IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=The%20efficiency%20of%20high-level%20water%20collecting%20cooling%20tower%20with%20the%20installation%20of%20cross%20wall%20affect%20by%20the%20evolution%20of%20aerodynamic%20field&rft.jtitle=Applied%20thermal%20engineering&rft.au=Chen,%20Guangan&rft.date=2019-10&rft.volume=161&rft.spage=114181&rft.pages=114181-&rft.artnum=114181&rft.issn=1359-4311&rft.eissn=1873-5606&rft_id=info:doi/10.1016/j.applthermaleng.2019.114181&rft_dat=%3Cproquest_cross%3E2310281961%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2310281961&rft_id=info:pmid/&rft_els_id=S1359431119326377&rfr_iscdi=true