{"id":"https://openalex.org/W7204198824","doi":"https://doi.org/10.1016/j.ijft.2026.101691","title":"Exergy, sustainability, and environmental impact analysis of bio-inspired fin double-pass solar air heaters: A comprehensive second-law assessment","display_name":"Exergy, sustainability, and environmental impact analysis of bio-inspired fin double-pass solar air heaters: A comprehensive second-law assessment","publication_year":2026,"publication_date":"2026-08-25","ids":{"openalex":"https://openalex.org/W7204198824","doi":"https://doi.org/10.1016/j.ijft.2026.101691"},"language":"en","primary_location":{"id":"doi:10.1016/j.ijft.2026.101691","doi":"https://doi.org/10.1016/j.ijft.2026.101691","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.ijft.2026.101691","pdf_url":"https://www.sciencedirect.com/science/article/pii/S2666202726001473/pdf","source":{"id":"https://openalex.org/S4210194017","display_name":"International Journal of Thermofluids","issn_l":"2666-2027","issn":["2666-2027"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","jufo-1","norway-1","poland-20"],"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-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Thermofluids","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.sciencedirect.com/science/article/pii/S2666202726001473/pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5037394187","display_name":"Avinash K. Hegde","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Avinash K. Hegde","raw_affiliation_strings":["Department of Mechanical Engineering, Mangalore Institute of Technology and Engineering, Moodabidre, Mangalore, Karnataka, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mechanical Engineering, Mangalore Institute of Technology and Engineering, Moodabidre, Mangalore, Karnataka, India","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078933296","display_name":"Niranjana Rai","orcid":"https://orcid.org/0000-0001-6791-9132","observed_orcids":["https://orcid.org/0000-0001-6791-9132"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Niranjana Rai","raw_affiliation_strings":["Department of Mechanical Engineering, Canara Engineering college Benjanapadavu, Mangalore, Karnataka"],"raw_orcid":"https://orcid.org/0000-0001-6791-9132","affiliations":[{"raw_affiliation_string":"Department of Mechanical Engineering, Canara Engineering college Benjanapadavu, Mangalore, Karnataka","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5000389562","display_name":"Kota Vasudeva Karanth","orcid":"https://orcid.org/0000-0001-6138-1204","observed_orcids":["https://orcid.org/0000-0001-6138-1204"]},"institutions":[{"id":"https://openalex.org/I164861460","display_name":"Manipal Academy of Higher Education","ror":"https://ror.org/02xzytt36","country_code":"IN","type":"education","lineage":["https://openalex.org/I164861460"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"K. Vasudeva Karanth","raw_affiliation_strings":["School of Mechanical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mechanical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India","institution_ids":["https://openalex.org/I164861460"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001848157","display_name":"N Madhwesh","orcid":"https://orcid.org/0000-0002-4191-8235","observed_orcids":["https://orcid.org/0000-0002-4191-8235"]},"institutions":[{"id":"https://openalex.org/I164861460","display_name":"Manipal Academy of Higher Education","ror":"https://ror.org/02xzytt36","country_code":"IN","type":"education","lineage":["https://openalex.org/I164861460"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Madhwesh N","raw_affiliation_strings":["School of Mechanical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mechanical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India","institution_ids":["https://openalex.org/I164861460"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5003782669","display_name":"H S Arunkumar","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I164861460","display_name":"Manipal Academy of Higher Education","ror":"https://ror.org/02xzytt36","country_code":"IN","type":"education","lineage":["https://openalex.org/I164861460"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"Arunkumar H S","raw_affiliation_strings":["School of Mechanical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mechanical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India","institution_ids":["https://openalex.org/I164861460"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5003782669"],"corresponding_institution_ids":["https://openalex.org/I164861460"],"apc_list":{"value":2520,"currency":"USD","value_usd":2520},"apc_paid":{"value":2520,"currency":"USD","value_usd":2520},"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"35","issue":null,"first_page":"101691","last_page":"101691"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11945","display_name":"Heat Transfer Mechanisms","score":0.9711999893188477,"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"}},"topics":[{"id":"https://openalex.org/T11945","display_name":"Heat Transfer Mechanisms","score":0.9711999893188477,"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"}},{"id":"https://openalex.org/T10998","display_name":"Heat Transfer and Optimization","score":0.012299999594688416,"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"}},{"id":"https://openalex.org/T10905","display_name":"Solar Thermal and Photovoltaic Systems","score":0.008899999782443047,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/double-pass-solar-air-heater","display_name":"double-pass solar air heater","score":0.9399999976158142},{"id":"https://openalex.org/keywords/exergy-destruction","display_name":"exergy destruction","score":0.8309999704360962},{"id":"https://openalex.org/keywords/exergy-analysis","display_name":"exergy analysis","score":0.7329999804496765},{"id":"https://openalex.org/keywords/sustainability-assessment","display_name":"sustainability assessment","score":0.7070000171661377},{"id":"https://openalex.org/keywords/environmental-impact-factors","display_name":"environmental impact factors","score":0.8629999756813049},{"id":"https://openalex.org/keywords/waste-exergy-ratio","display_name":"waste exergy ratio","score":0.8840000033378601}],"concepts":[{"id":"https://openalex.org/C113146524","wikidata":"https://www.wikidata.org/wiki/Q663290","display_name":"Exergy","level":2,"score":0.9072999954223633},{"id":"https://openalex.org/C83119724","wikidata":"https://www.wikidata.org/wiki/Q3070886","display_name":"Exergy efficiency","level":3,"score":0.7919999957084656},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.6026999950408936},{"id":"https://openalex.org/C182748727","wikidata":"https://www.wikidata.org/wiki/Q178932","display_name":"Reynolds number","level":3,"score":0.4823000133037567},{"id":"https://openalex.org/C2779748257","wikidata":"https://www.wikidata.org/wiki/Q837515","display_name":"Solar thermal collector","level":3,"score":0.45080000162124634},{"id":"https://openalex.org/C130230704","wikidata":"https://www.wikidata.org/wiki/Q898280","display_name":"Nusselt number","level":4,"score":0.44339999556541443},{"id":"https://openalex.org/C50406533","wikidata":"https://www.wikidata.org/wiki/Q1452104","display_name":"Thermal efficiency","level":3,"score":0.398499995470047},{"id":"https://openalex.org/C204530211","wikidata":"https://www.wikidata.org/wiki/Q752823","display_name":"Thermal","level":2,"score":0.3903000056743622},{"id":"https://openalex.org/C87717796","wikidata":"https://www.wikidata.org/wiki/Q146326","display_name":"Environmental engineering","level":1,"score":0.3625999987125397},{"id":"https://openalex.org/C105994980","wikidata":"https://www.wikidata.org/wiki/Q15081379","display_name":"Waste heat recovery unit","level":3,"score":0.3621000051498413},{"id":"https://openalex.org/C40221189","wikidata":"https://www.wikidata.org/wiki/Q3064198","display_name":"Solar gain","level":3,"score":0.3474000096321106},{"id":"https://openalex.org/C50517652","wikidata":"https://www.wikidata.org/wiki/Q179635","display_name":"Heat transfer","level":2,"score":0.3328999876976013},{"id":"https://openalex.org/C204323151","wikidata":"https://www.wikidata.org/wiki/Q905424","display_name":"Range (aeronautics)","level":2,"score":0.30300000309944153},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.30219998955726624},{"id":"https://openalex.org/C116915560","wikidata":"https://www.wikidata.org/wiki/Q83504","display_name":"Nuclear engineering","level":1,"score":0.296999990940094},{"id":"https://openalex.org/C29700514","wikidata":"https://www.wikidata.org/wiki/Q634340","display_name":"Heat transfer coefficient","level":3,"score":0.2777000069618225},{"id":"https://openalex.org/C164915370","wikidata":"https://www.wikidata.org/wiki/Q5167494","display_name":"Cooling capacity","level":2,"score":0.2732999920845032},{"id":"https://openalex.org/C21880701","wikidata":"https://www.wikidata.org/wiki/Q2144042","display_name":"Process engineering","level":1,"score":0.26820001006126404},{"id":"https://openalex.org/C10899652","wikidata":"https://www.wikidata.org/wiki/Q160329","display_name":"Convection","level":2,"score":0.26249998807907104},{"id":"https://openalex.org/C13119800","wikidata":"https://www.wikidata.org/wiki/Q902090","display_name":"Coefficient of performance","level":4,"score":0.2599000036716461},{"id":"https://openalex.org/C107706546","wikidata":"https://www.wikidata.org/wiki/Q189124","display_name":"Heat exchanger","level":2,"score":0.2583000063896179},{"id":"https://openalex.org/C41231900","wikidata":"https://www.wikidata.org/wiki/Q918227","display_name":"Convective heat transfer","level":3,"score":0.2574999928474426},{"id":"https://openalex.org/C184235594","wikidata":"https://www.wikidata.org/wiki/Q288706","display_name":"Waste heat","level":3,"score":0.25609999895095825},{"id":"https://openalex.org/C173991790","wikidata":"https://www.wikidata.org/wiki/Q1896787","display_name":"Evaporative cooler","level":2,"score":0.25589999556541443}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1016/j.ijft.2026.101691","doi":"https://doi.org/10.1016/j.ijft.2026.101691","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.ijft.2026.101691","pdf_url":"https://www.sciencedirect.com/science/article/pii/S2666202726001473/pdf","source":{"id":"https://openalex.org/S4210194017","display_name":"International Journal of Thermofluids","issn_l":"2666-2027","issn":["2666-2027"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","jufo-1","norway-1","poland-20"],"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-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Thermofluids","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:cf54482672274b6b8f9d94551c413e76","doi":null,"is_oa":false,"landing_page_url":"https://doaj.org/article/cf54482672274b6b8f9d94551c413e76","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"International Journal of Thermofluids, Vol 35, Iss , Pp 101691- (2026)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1016/j.ijft.2026.101691","doi":"https://doi.org/10.1016/j.ijft.2026.101691","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.ijft.2026.101691","pdf_url":"https://www.sciencedirect.com/science/article/pii/S2666202726001473/pdf","source":{"id":"https://openalex.org/S4210194017","display_name":"International Journal of Thermofluids","issn_l":"2666-2027","issn":["2666-2027"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","jufo-1","norway-1","poland-20"],"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-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Thermofluids","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":1.0},{"display_name":"Climate action","id":"https://metadata.un.org/sdg/13","score":0.821399986743927},{"display_name":"Responsible consumption and production","id":"https://metadata.un.org/sdg/12","score":0.6000000238418579}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7204198824.pdf","grobid_xml":"https://content.openalex.org/works/W7204198824.grobid-xml"},"referenced_works_count":33,"referenced_works":["https://openalex.org/W1974474306","https://openalex.org/W1984398668","https://openalex.org/W1994098432","https://openalex.org/W1995179757","https://openalex.org/W1995735353","https://openalex.org/W2000777194","https://openalex.org/W2011683762","https://openalex.org/W2019020590","https://openalex.org/W2032982728","https://openalex.org/W2051131492","https://openalex.org/W2053979739","https://openalex.org/W2077747159","https://openalex.org/W2081194929","https://openalex.org/W2093155806","https://openalex.org/W2155732147","https://openalex.org/W2207218604","https://openalex.org/W2497738220","https://openalex.org/W2592184882","https://openalex.org/W2972556110","https://openalex.org/W4313360670","https://openalex.org/W4378376576","https://openalex.org/W4384408323","https://openalex.org/W4399248398","https://openalex.org/W4403013966","https://openalex.org/W4409972870","https://openalex.org/W4413222299","https://openalex.org/W4413580806","https://openalex.org/W4415092972","https://openalex.org/W4415213610","https://openalex.org/W4416420317","https://openalex.org/W4417288473","https://openalex.org/W7108748667","https://openalex.org/W7117244261"],"related_works":["https://openalex.org/W3100556979","https://openalex.org/W4403013966","https://openalex.org/W4404597062","https://openalex.org/W7167820244","https://openalex.org/W3112531193","https://openalex.org/W4390245716","https://openalex.org/W7167222293","https://openalex.org/W4293222077","https://openalex.org/W3019159870","https://openalex.org/W7118123172"],"abstract_inverted_index":{"Double-pass":[0],"solar":[1],"air":[2],"heaters":[3],"(DPSAHs)":[4],"are":[5],"widely":[6],"employed":[7],"for":[8,122,211],"low-temperature":[9],"thermal":[10,64,68,166],"applications;":[11],"however,":[12],"their":[13],"performance":[14,69,142,215],"is":[15,96],"constrained":[16],"by":[17],"the":[18,62,79,86,118,126,161,185,196,207],"low":[19],"convective":[20],"heat-transfer":[21],"coefficient":[22],"of":[23,36,49,88,125,144,150,182],"air.":[24],"This":[25],"study":[26],"presents":[27],"a":[28,37,45,99,139],"comprehensive":[29],"thermal,":[30],"exergy,":[31],"sustainability,":[32],"and":[33,55,70,146,156,192],"environmental":[34,218],"assessment":[35],"DPSAH":[38],"integrated":[39],"with":[40,169,216],"bio-inspired":[41,135],"corrugated":[42],"fins":[43],"over":[44,184],"Reynolds":[46,170],"number":[47,54],"range":[48],"3000\u201321000.":[50],"Experimentally":[51],"validated":[52],"Nusselt":[53],"friction":[56],"factor":[57,143],"correlations":[58],"were":[59],"incorporated":[60],"into":[61],"Hottel\u2013Whillier\u2013Bliss":[63],"model":[65],"to":[66,75,93,103,177],"evaluate":[67],"exergy":[71,94,105,110,119,128,148,172,191],"destruction.":[72],"In":[73],"addition":[74],"conventional":[76],"sustainability":[77,193],"indicators,":[78],"Environmental":[80],"Impact":[81],"Factor":[82],"(EIF),":[83],"defined":[84],"as":[85,98,206],"ratio":[87],"Waste":[89],"Exergy":[90],"Ratio":[91],"(WER)":[92],"efficiency,":[95],"adopted":[97],"complementary":[100],"thermodynamic":[101,214],"indicator":[102],"quantify":[104],"destruction":[106],"per":[107],"unit":[108],"useful":[109],"output.":[111],"Results":[112],"show":[113],"that":[114],"irradiation":[115],"irreversibility":[116],"dominates":[117],"destruction,":[120],"accounting":[121],"approximately":[123],"75%":[124],"total":[127],"loss":[129],"under":[130],"all":[131],"operating":[132,187,198,209],"conditions.":[133],"The":[134,189],"fin":[136],"configuration":[137],"achieved":[138],"maximum":[140],"thermohydraulic":[141],"2.77":[145],"an":[147,180],"efficiency":[149,167,173],"1.38%":[151],"at":[152],"Re":[153],"=":[154,158,201,204],"3000":[155],"h/H":[157,203],"0.50,":[159],"outperforming":[160],"optimized":[162],"aerofoil":[163],"fin.":[164],"Although":[165],"increased":[168],"number,":[171],"decreased,":[174],"causing":[175],"EIF":[176],"increase":[178],"nearly":[179],"order":[181],"magnitude":[183],"investigated":[186],"range.":[188],"combined":[190],"analyses":[194],"identified":[195],"low-Re/high-h/H":[197],"region":[199],"(Re":[200],"3000\u20136000,":[202],"0.50)":[205],"optimum":[208],"window":[210],"achieving":[212],"enhanced":[213],"minimum":[217],"burden.":[219]},"counts_by_year":[],"updated_date":"2026-11-10T11:39:43.021295","created_date":"2026-08-26T00:00:00"}