{"id":"https://openalex.org/W7225180394","doi":"https://doi.org/10.1016/j.tsep.2026.104977","title":"Enhanced thermal performance of copper-based polydimethylsiloxane nanofluids for parabolic trough solar collectors","display_name":"Enhanced thermal performance of copper-based polydimethylsiloxane nanofluids for parabolic trough solar collectors","publication_year":2026,"publication_date":"2026-11-03","ids":{"openalex":"https://openalex.org/W7225180394","doi":"https://doi.org/10.1016/j.tsep.2026.104977"},"language":"en","primary_location":{"id":"doi:10.1016/j.tsep.2026.104977","doi":"https://doi.org/10.1016/j.tsep.2026.104977","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.tsep.2026.104977","pdf_url":null,"source":{"id":"https://openalex.org/S4210220034","display_name":"Thermal Science and Engineering Progress","issn_l":"2451-9049","issn":["2451-9049","2451-9057"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-d","jufo-1","norway-1","poland-20","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Thermal Science and Engineering Progress","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://doi.org/10.1016/j.tsep.2026.104977","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5062171347","display_name":"Paloma Mart\u00ednez-Merino","orcid":"https://orcid.org/0000-0002-3706-0109","observed_orcids":["https://orcid.org/0000-0002-3706-0109"]},"institutions":[{"id":"https://openalex.org/I79238269","display_name":"Universidad de Sevilla","ror":"https://ror.org/03yxnpp24","country_code":"ES","type":"education","lineage":["https://openalex.org/I79238269"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Paloma Mart\u00ednez-Merino","raw_affiliation_strings":["Department of Physical Chemistry, University of Sevilla E-41012 Sevilla, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physical Chemistry, University of Sevilla E-41012 Sevilla, Spain","institution_ids":["https://openalex.org/I79238269"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5160465140","display_name":"Noelia Borrero-Mateos","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I39147953","display_name":"Universidad de C\u00e1diz","ror":"https://ror.org/04mxxkb11","country_code":"ES","type":"education","lineage":["https://openalex.org/I39147953"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Noelia Borrero-Mateos","raw_affiliation_strings":["Department of Physical Chemistry, University of C\u00e1diz, E-11510 Puerto Real, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physical Chemistry, University of C\u00e1diz, E-11510 Puerto Real, Spain","institution_ids":["https://openalex.org/I39147953"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030798322","display_name":"Javier Navas","orcid":"https://orcid.org/0000-0001-7569-0809","observed_orcids":["https://orcid.org/0000-0001-7569-0809"]},"institutions":[{"id":"https://openalex.org/I39147953","display_name":"Universidad de C\u00e1diz","ror":"https://ror.org/04mxxkb11","country_code":"ES","type":"education","lineage":["https://openalex.org/I39147953"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Javier Navas","raw_affiliation_strings":["Department of Physical Chemistry, University of C\u00e1diz, E-11510 Puerto Real, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physical Chemistry, University of C\u00e1diz, E-11510 Puerto Real, Spain","institution_ids":["https://openalex.org/I39147953"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5003747749","display_name":"Rodrigo Alc\u00e1ntara","orcid":"https://orcid.org/0000-0003-1566-7070","observed_orcids":["https://orcid.org/0000-0003-1566-7070"]},"institutions":[{"id":"https://openalex.org/I39147953","display_name":"Universidad de C\u00e1diz","ror":"https://ror.org/04mxxkb11","country_code":"ES","type":"education","lineage":["https://openalex.org/I39147953"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Rodrigo Alc\u00e1ntara","raw_affiliation_strings":["Department of Physical Chemistry, University of C\u00e1diz, E-11510 Puerto Real, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physical Chemistry, University of C\u00e1diz, E-11510 Puerto Real, Spain","institution_ids":["https://openalex.org/I39147953"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5003747749","https://openalex.org/A5062171347"],"corresponding_institution_ids":["https://openalex.org/I39147953","https://openalex.org/I79238269"],"apc_list":{"value":3000,"currency":"USD","value_usd":3000},"apc_paid":{"value":3000,"currency":"USD","value_usd":3000},"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.70912738,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"80","issue":null,"first_page":"104977","last_page":"104977"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10104","display_name":"Nanofluid Flow and Heat Transfer","score":0.8554999828338623,"subfield":{"id":"https://openalex.org/subfields/1507","display_name":"Fluid Flow and Transfer Processes"},"field":{"id":"https://openalex.org/fields/15","display_name":"Chemical Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10104","display_name":"Nanofluid Flow and Heat Transfer","score":0.8554999828338623,"subfield":{"id":"https://openalex.org/subfields/1507","display_name":"Fluid Flow and Transfer Processes"},"field":{"id":"https://openalex.org/fields/15","display_name":"Chemical Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10905","display_name":"Solar Thermal and Photovoltaic Systems","score":0.14059999585151672,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10938","display_name":"Phase Change Materials Research","score":0.0008999999845400453,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/copper-nanoparticles","display_name":"copper nanoparticles","score":0.871999979019165},{"id":"https://openalex.org/keywords/polydimethylsiloxane","display_name":"polydimethylsiloxane","score":0.9800000190734863},{"id":"https://openalex.org/keywords/nanofluids","display_name":"nanofluids","score":0.9919999837875366},{"id":"https://openalex.org/keywords/parabolic-trough-collector","display_name":"parabolic trough collector","score":0.9860000014305115},{"id":"https://openalex.org/keywords/concentrated-solar-power","display_name":"concentrated solar power","score":0.9810000061988831},{"id":"https://openalex.org/keywords/heat-transfer-fluid","display_name":"heat transfer fluid","score":0.7609999775886536},{"id":"https://openalex.org/keywords/thermal-conductivity-enhancement","display_name":"thermal conductivity enhancement","score":0.8930000066757202},{"id":"https://openalex.org/keywords/isobaric-specific-heat","display_name":"isobaric specific heat","score":0.9539999961853027},{"id":"https://openalex.org/keywords/thermophysical-properties","display_name":"thermophysical properties","score":0.7760000228881836},{"id":"https://openalex.org/keywords/nanofluid-stability","display_name":"nanofluid stability","score":0.8389999866485596}],"concepts":[{"id":"https://openalex.org/C21946209","wikidata":"https://www.wikidata.org/wiki/Q1989679","display_name":"Nanofluid","level":3,"score":0.9745000004768372},{"id":"https://openalex.org/C2781249646","wikidata":"https://www.wikidata.org/wiki/Q2051219","display_name":"Parabolic trough","level":3,"score":0.8852999806404114},{"id":"https://openalex.org/C2779849746","wikidata":"https://www.wikidata.org/wiki/Q411955","display_name":"Polydimethylsiloxane","level":2,"score":0.6967999935150146},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.6886000037193298},{"id":"https://openalex.org/C173356080","wikidata":"https://www.wikidata.org/wiki/Q14930425","display_name":"Nanofluids in solar collectors","level":4,"score":0.5720999836921692},{"id":"https://openalex.org/C97346530","wikidata":"https://www.wikidata.org/wiki/Q487005","display_name":"Thermal conductivity","level":2,"score":0.5260000228881836},{"id":"https://openalex.org/C2994001752","wikidata":"https://www.wikidata.org/wiki/Q3074474","display_name":"Heat transfer fluid","level":3,"score":0.5059000253677368},{"id":"https://openalex.org/C2779473208","wikidata":"https://www.wikidata.org/wiki/Q285927","display_name":"Concentrated solar power","level":3,"score":0.49709999561309814},{"id":"https://openalex.org/C50517652","wikidata":"https://www.wikidata.org/wiki/Q179635","display_name":"Heat transfer","level":2,"score":0.49140000343322754},{"id":"https://openalex.org/C183287310","wikidata":"https://www.wikidata.org/wiki/Q2142963","display_name":"Thermal energy storage","level":2,"score":0.4546999931335449},{"id":"https://openalex.org/C204530211","wikidata":"https://www.wikidata.org/wiki/Q752823","display_name":"Thermal","level":2,"score":0.45260000228881836},{"id":"https://openalex.org/C127172972","wikidata":"https://www.wikidata.org/wiki/Q128709","display_name":"Viscosity","level":2,"score":0.41690000891685486},{"id":"https://openalex.org/C541104983","wikidata":"https://www.wikidata.org/wiki/Q40015","display_name":"Solar energy","level":2,"score":0.413100004196167},{"id":"https://openalex.org/C107861326","wikidata":"https://www.wikidata.org/wiki/Q209233","display_name":"Thermal energy","level":2,"score":0.4009999930858612},{"id":"https://openalex.org/C155672457","wikidata":"https://www.wikidata.org/wiki/Q61231","display_name":"Nanoparticle","level":2,"score":0.38029998540878296},{"id":"https://openalex.org/C146211579","wikidata":"https://www.wikidata.org/wiki/Q137649","display_name":"Isobaric process","level":2,"score":0.36890000104904175},{"id":"https://openalex.org/C188573790","wikidata":"https://www.wikidata.org/wiki/Q12705","display_name":"Renewable energy","level":2,"score":0.36649999022483826},{"id":"https://openalex.org/C21880701","wikidata":"https://www.wikidata.org/wiki/Q2144042","display_name":"Process engineering","level":1,"score":0.351500004529953},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.3504999876022339},{"id":"https://openalex.org/C200990466","wikidata":"https://www.wikidata.org/wiki/Q271707","display_name":"Rheology","level":2,"score":0.33970001339912415},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.33489999175071716},{"id":"https://openalex.org/C42360764","wikidata":"https://www.wikidata.org/wiki/Q83588","display_name":"Chemical engineering","level":1,"score":0.3224000036716461},{"id":"https://openalex.org/C50406533","wikidata":"https://www.wikidata.org/wiki/Q1452104","display_name":"Thermal efficiency","level":3,"score":0.32019999623298645},{"id":"https://openalex.org/C138631740","wikidata":"https://www.wikidata.org/wiki/Q967847","display_name":"Nanomaterials","level":2,"score":0.3174999952316284},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.31349998712539673},{"id":"https://openalex.org/C171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","level":1,"score":0.311599999666214},{"id":"https://openalex.org/C423512","wikidata":"https://www.wikidata.org/wiki/Q383973","display_name":"Electricity generation","level":3,"score":0.2992999851703644},{"id":"https://openalex.org/C2780643059","wikidata":"https://www.wikidata.org/wiki/Q902134","display_name":"Synthetic oil","level":4,"score":0.296999990940094},{"id":"https://openalex.org/C57527310","wikidata":"https://www.wikidata.org/wiki/Q1764073","display_name":"Nanofluidics","level":2,"score":0.29420000314712524},{"id":"https://openalex.org/C2779301550","wikidata":"https://www.wikidata.org/wiki/Q217236","display_name":"Working fluid","level":2,"score":0.29249998927116394},{"id":"https://openalex.org/C171534860","wikidata":"https://www.wikidata.org/wiki/Q655870","display_name":"Environmentally friendly","level":2,"score":0.289900004863739},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.266400009393692},{"id":"https://openalex.org/C2777618391","wikidata":"https://www.wikidata.org/wiki/Q1483757","display_name":"Solar power","level":3,"score":0.26589998602867126},{"id":"https://openalex.org/C2777777821","wikidata":"https://www.wikidata.org/wiki/Q25111513","display_name":"Heat transfer enhancement","level":4,"score":0.2614000141620636},{"id":"https://openalex.org/C2742236","wikidata":"https://www.wikidata.org/wiki/Q924713","display_name":"Efficient energy use","level":2,"score":0.2556999921798706},{"id":"https://openalex.org/C29700514","wikidata":"https://www.wikidata.org/wiki/Q634340","display_name":"Heat transfer coefficient","level":3,"score":0.25429999828338623}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/j.tsep.2026.104977","doi":"https://doi.org/10.1016/j.tsep.2026.104977","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.tsep.2026.104977","pdf_url":null,"source":{"id":"https://openalex.org/S4210220034","display_name":"Thermal Science and Engineering Progress","issn_l":"2451-9049","issn":["2451-9049","2451-9057"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-d","jufo-1","norway-1","poland-20","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Thermal Science and Engineering Progress","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1016/j.tsep.2026.104977","doi":"https://doi.org/10.1016/j.tsep.2026.104977","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.tsep.2026.104977","pdf_url":null,"source":{"id":"https://openalex.org/S4210220034","display_name":"Thermal Science and Engineering Progress","issn_l":"2451-9049","issn":["2451-9049","2451-9057"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-d","jufo-1","norway-1","poland-20","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Thermal Science and Engineering Progress","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.9853000044822693,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"},{"score":0.7811999917030334,"display_name":"Responsible consumption and production","id":"https://metadata.un.org/sdg/12"},{"score":0.685699999332428,"display_name":"Climate action","id":"https://metadata.un.org/sdg/13"}],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320315062","display_name":"Ministerio de Ciencia, Innovaci\u00f3n y Universidades","ror":null},{"id":"https://openalex.org/F4320326655","display_name":"Xunta de Galicia","ror":"https://ror.org/0181xnw06"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":47,"referenced_works":["https://openalex.org/W1972067347","https://openalex.org/W1974009490","https://openalex.org/W1984754981","https://openalex.org/W2001789392","https://openalex.org/W2013278261","https://openalex.org/W2015395169","https://openalex.org/W2032908964","https://openalex.org/W2049309711","https://openalex.org/W2058135277","https://openalex.org/W2063050277","https://openalex.org/W2155129816","https://openalex.org/W2165495072","https://openalex.org/W2177765171","https://openalex.org/W2178422386","https://openalex.org/W2258059323","https://openalex.org/W2323691040","https://openalex.org/W2460546027","https://openalex.org/W2527433094","https://openalex.org/W2592275233","https://openalex.org/W2734518607","https://openalex.org/W2766975621","https://openalex.org/W2790197754","https://openalex.org/W2795624821","https://openalex.org/W2804778893","https://openalex.org/W2810153228","https://openalex.org/W2955640616","https://openalex.org/W3004466468","https://openalex.org/W3097901865","https://openalex.org/W3107909500","https://openalex.org/W3211646317","https://openalex.org/W3217407082","https://openalex.org/W4210981824","https://openalex.org/W4223644335","https://openalex.org/W4280614020","https://openalex.org/W4282599851","https://openalex.org/W4292477601","https://openalex.org/W4327556521","https://openalex.org/W4361216751","https://openalex.org/W4384342499","https://openalex.org/W4388599584","https://openalex.org/W4402083469","https://openalex.org/W4403390339","https://openalex.org/W4406899482","https://openalex.org/W4409018220","https://openalex.org/W4409194430","https://openalex.org/W4409839622","https://openalex.org/W4412468950"],"related_works":["https://openalex.org/W4391349728","https://openalex.org/W4409018220","https://openalex.org/W4402083469","https://openalex.org/W4406899482","https://openalex.org/W4293761432","https://openalex.org/W4214631427","https://openalex.org/W4400605581","https://openalex.org/W4399332931","https://openalex.org/W4379530061","https://openalex.org/W4327702858"],"abstract_inverted_index":{"Addressing":[0],"global":[1],"energy":[2,17],"demand":[3],"while":[4],"reducing":[5],"environmental":[6,80],"impact":[7],"remains":[8],"a":[9,52,64,102,131],"key":[10,53],"challenge":[11],"in":[12,116,159,184,192,201,206,226],"the":[13,44,58,73,79,83,90,109,125,164,172,176,207,216,220],"transition":[14],"to":[15,28,40,72,78,108,163,182,190,198,238],"sustainable":[16],"systems.":[18,245],"Concentrating":[19],"solar":[20],"power":[21],"(CSP)":[22],"stands":[23],"out":[24],"for":[25,170,243],"its":[26,33],"potential":[27,230],"meet":[29],"large-scale":[30],"needs":[31],"although":[32],"economic":[34],"competitiveness":[35],"is":[36,68,168],"still":[37],"limited":[38],"compared":[39,107,162],"fossil":[41],"fuels.":[42],"Improving":[43],"thermal":[45,149,193],"efficiency":[46],"of":[47,60,82,124,180,204,209],"CSP":[48],"technologies":[49],"has":[50],"become":[51],"research":[54],"objective,":[55],"particularly":[56],"through":[57],"use":[59],"nanofluids.":[61],"Taking":[62],"this":[63,88],"step":[65],"further,":[66],"attention":[67],"shifting":[69],"not":[70],"only":[71],"nanoparticles":[74,98],"used,":[75],"but":[76],"also":[77],"profile":[81],"base":[84,165],"fluid":[85,106,166],"itself.":[86],"In":[87],"context,":[89],"present":[91],"study":[92],"explores":[93],"nanofluids":[94,127,177,225],"based":[95],"on":[96],"Cu":[97,213],"and":[99,148,188,233],"polydimethylsiloxane":[100],"(PDMS),":[101],"more":[103],"environmentally":[104,235],"friendly":[105],"conventional":[110,239],"biphenyl/diphenyl":[111],"oxide":[112],"mixtures":[113],"typically":[114],"used":[115],"parabolic":[117],"trough":[118],"collectors":[119],"(PTCs).":[120],"The":[121,153],"physical":[122],"stability":[123],"prepared":[126],"was":[128],"confirmed":[129],"over":[130],"25-day":[132],"period.":[133],"Once":[134],"stabilized,":[135],"thermophysical":[136],"properties":[137],"such":[138],"as":[139,231],"density,":[140],"surface":[141],"tension,":[142],"dynamic":[143,160],"viscosity,":[144],"isobaric":[145,185],"specific":[146,186],"heat":[147,187,202,240],"conductivity":[150],"were":[151],"measured.":[152],"results":[154],"revealed":[155],"no":[156],"significant":[157],"changes":[158],"viscosity":[161],"which":[167],"advantageous":[169],"maintaining":[171],"operational":[173],"conditions.":[174],"Notably,":[175],"exhibited":[178],"enhancements":[179],"up":[181,189],"5%":[183],"16%":[191],"conductivity.":[194],"These":[195],"improvements":[196],"lead":[197],"an":[199],"increase":[200],"transfer":[203,241],"11%":[205],"nanofluid":[208],"concentration":[210],"0.10":[211],"wt.%":[212],"calculated":[214],"using":[215],"Dittus-Boelter":[217],"equation.":[218],"Therefore,":[219],"findings":[221],"suggest":[222],"that":[223],"Cu-based":[224],"PDMS":[227],"offer":[228],"considerable":[229],"efficient":[232],"comparatively":[234],"favourable":[236],"alternatives":[237],"fluids":[242],"CSP-PTC":[244]},"counts_by_year":[],"updated_date":"2026-11-05T12:25:35.769452","created_date":"2026-11-04T00:00:00"}
