{ "article_id": 1185, "public_id": "ff149d50-3796-4404-a125-4db840c2afea", "internal_identifier": null, "source_identifier": "84:7", "status": "published", "type": "research_article", "title": "Bir Ortam Havası Soğutma Süreçlerindeki Tersinmezliklerin Üfleme Havası Ekserji Değeri Limitlerine Etkileri", "title_secondary": null, "abstract": "Bir ortam havasının yaz şartlarına göre soğutulmasında, hava karışım bağlantısı, soğutucu serpantin, ısıtıcı serpantin ve bir fandan oluşan iklimlendirme ünitesi göz önüne alınmıştır. Bu uygulamayla bilinen ekserji analizi ile birlikte ileri ekserji analizi metotlarının iklimlendirme konularındaki uygulanabilirliğinin gösterilmesi amaçlanmıştır. Tasarlanan modelde iklimlendirme ünitesini oluşturan her bir bileşende oluşan ekserji kaybı ve ekserji tahribatı hesaplanmaktadır. Bu amaçla, ele alınan model, üfleme havası, taze hava ve geri dönüş havasının %20’lik kısmıyla karışımından oluştuğu düşünülmüştür. Ortamın gizli ısı kazancı 4,1kW, duyulur ısı kazancı 23,4 kW olduğu ve ortamın konfor şartları için kuru termometre sıcaklığı 23,5 °C ve bağıl nemi %40 olmasını sağlayan, ortama giren üfleme havası 16 °C ele alınmıştır. İklimlendirme ünitesindeki bileşenlerde ortaya çıkan tersinmezliklerin şartlandırılmış hava akımındaki ekserji tahribatının, sakınılmaz-içsel (unavaiodable-endogenous), sakınılmaz-dışsal (unavoidable-exogenous), uygulanabilir-içsel (avoidable-endogenous) ve uygulanabilir-dışsal (avoidable-exogenous) miktarları belirlenerek üfleme havasının ekserji değerleri atmosferik hava şartlarına göre belirlenmiştir.", "language": "tr", "english_title": "Effects of Irreversibility in Ambient Air Cooling Processes on Exergy Limits of Supply Air", "english_abstract": "In cooling ambient air to summer conditions, an air conditioning unit consisting of an air mixing coupling, a cooling coil, a heating coil, and a fan is considered. This application aims to demonstrate the applicability of advanced exergy analysis methods, along with known exergy analysis, to air conditioning applications. In the designed model, the exergy loss and exergy destruction occurring in each component of the air conditioning unit are calculated. For this purpose, the model is considered to consist of a mixture of supply air, fresh air, and return air with a 20% ratio. The latent heat gain of the environment is assumed to be 4.1 kW, the sensible heat gain 23.4 kW, and the supply air temperature is considered to be 16 °C, ensuring a dry bulb temperature of 23.5 °C and a relative humidity of 40% for comfortable ambient conditions. The exergy values ​​of the supply air were determined according to atmospheric air conditions by identifying the unavoidable-endogenous, unavoidable-exogenous, avoidable-endogenous, and avoidable-exogenous amounts of exergy destruction in the conditioned air stream caused by irreversibilities occurring in the components of the air conditioning unit.", "doi": "10.36287/setsci.4.6.007", "doi_url": "https://doi.org/10.36287/setsci.4.6.007", "resource_url": "https://www.set-science.com/a/ff149d50-3796-4404-a125-4db840c2afea", "pdf_url": "https://www.set-science.com/a/ff149d50-3796-4404-a125-4db840c2afea/pdf", "og_image": "https://www.set-science.com/assets/img/og-card-v2.png", "authors": [ { "public_id": "73c1dac2-e7bf-4419-abd5-5d80bdb57adf", "given": "Betül", "family": "Saraç", "full": "Betül Saraç", "literal": null, "orcid": null, "orcid_url": null, "email": "bsarac@ktu.edu.tr", "corresponding": false, "sequence": "first", "affiliations": [ { "name": "Karadeniz Technical University", "department": null, "country": null, "country_code": null, "ror": null, "ror_url": null } ] }, { "public_id": "98fed920-215b-43cf-87c5-f3bdbf45157c", "given": "Erhan", "family": "Aksu", "full": "Erhan Aksu", "literal": null, "orcid": null, "orcid_url": null, "email": "eaksu@ktu.edu.tr", "corresponding": true, "sequence": "additional", "affiliations": [ { "name": "Karadeniz Technical University", "department": null, "country": null, "country_code": null, "ror": null, "ror_url": null } ] }, { "public_id": "aaf679f3-b61f-4632-ade8-313f98e97749", "given": "Teoman", "family": "Ayhan", "full": "Teoman Ayhan", "literal": null, "orcid": null, "orcid_url": null, "email": "proftayhan@gmail.com", "corresponding": false, "sequence": "additional", "affiliations": [ { "name": "Karadeniz Technical University", "department": null, "country": null, "country_code": null, "ror": null, "ror_url": null } ] } ], "keywords": [], "translations": [ { "language": "en", "title": "Effects of Irreversibility in Ambient Air Cooling Processes on Exergy Limits of Supply Air", "abstract": "In cooling ambient air to summer conditions, an air conditioning unit consisting of an air mixing coupling, a cooling coil, a heating coil, and a fan is considered. This application aims to demonstrate the applicability of advanced exergy analysis methods, along with known exergy analysis, to air conditioning applications. In the designed model, the exergy loss and exergy destruction occurring in each component of the air conditioning unit are calculated. For this purpose, the model is considered to consist of a mixture of supply air, fresh air, and return air with a 20% ratio. The latent heat gain of the environment is assumed to be 4.1 kW, the sensible heat gain 23.4 kW, and the supply air temperature is considered to be 16 °C, ensuring a dry bulb temperature of 23.5 °C and a relative humidity of 40% for comfortable ambient conditions. The exergy values ​​of the supply air were determined according to atmospheric air conditions by identifying the unavoidable-endogenous, unavoidable-exogenous, avoidable-endogenous, and avoidable-exogenous amounts of exergy destruction in the conditioned air stream caused by irreversibilities occurring in the components of the air conditioning unit.", "keywords": [ "İleri ekserji, mahal soğutması, ekserji tahribatı, iklimlendirme ünitesi" ] } ], "subjects": [], "subject_names": [], "published_date": "2019-12-22", "published_year": "2019", "received_date": null, "accepted_date": null, "volume": "9", "issue": null, "page_first": "1", "page_last": "6", "article_number": null, "conference": { "short_name": "ISAS WINTER-2019 (ENS)", "full_title": "4th International Symposium on Innovative Approaches in Engineering and Natural Sciences", "name": "4th International Symposium on Innovative Approaches in Engineering and Natural Sciences", "acronym": "ISAS WINTER-2019 (ENS)", "location": "Samsun, Türkiye", "start_date": "2019-11-22", "end_date": null, "public_id": "ede2435c-3820-4bef-84a9-59e7d8de9d60" }, "proceedings": { "title": "4th International Symposium on Innovative Approaches in Engineering and Natural Sciences", "series_title": "SETSCI Conference Proceedings", "publisher": "SET Technology", "isbn": "978-605-81988-8-3", "eisbn": null, "issn": null, "eissn": "2687-5527", "doi": null, "doi_prefix": "10.36287", "slug": "setsci-volume-9-2019-legacy-84", "public_id": "5d3c128d-5090-429f-8398-4e32c57e5584", "url": "https://www.set-science.com/p/setsci-volume-9-2019-legacy-84" }, "license": { "name": "CC BY 4.0", "url": "https://creativecommons.org/licenses/by/4.0/", "code": "CC-BY-4.0", "open_access": true }, "copyright": { "holder": "SET Technology", "year": "2019" }, "funding_statement": null, "funders": [], "references": [ { "order": 1, "raw": "Özgener Leyla, Hepbaşlı Arif, HVAC sistemlerinde ekserji analizinin gerekliliği ve uygulamaları. 6. 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