{ "article_id": 1246, "public_id": "8c8c829b-4cd7-4ce3-a5e5-f81545a9ce50", "internal_identifier": null, "source_identifier": "84:89", "status": "published", "type": "research_article", "title": "Konsantrasyonlu Fotovoltaik Termal Bir Sistemde Soğutucu Akışkan Tipi ve Kanal Geometrisinin Elektriksel Verim ve Isıtma Kapasitesine Etkisi", "title_secondary": null, "abstract": "Günümüzde gelişen teknolojiyle birlikte artan sera gazı emisyonları ve küresel ısınma problemleri yenilenebilir enerji kaynaklarının kullanımını önemli ölçüde artırmıştır. Yenilenebilir enerji kaynakları güneş enerjisi, rüzgar enerjisi, jeotermal enerji, hidrolik enerji, biyokütle enerjisi ve hidrojen enerjisi olarak sınıflandırılabilir. Güneş enerjisi büyük ölçüde ısıl radyasyon yayması, temiz ve sınırsız olması bakımından yenilenebilir enerji kaynakları arasında çok önemli bir yere sahiptir. Konsantrasyonlu fotovoltaik termal sistemler (KFVT) güneş enerjisinden elektrik ve ısıl enerji elde edilmesinde kullanılan cihazlardan bir tanesidir. KFVT sistem ile güneş enerjisi direkt olarak elektriğe çevrilmekte ve bu sırada fotovoltaik modül üzerinde oluşan atık ısıdan akışkanların ısıtılmasında faydalanılmaktadır. Bu çalışmada bir KFVT sistemde farklı akışkan kullanılması ve kanal geometrisinin değiştirilmesi durumunda oluşan elektrik üretimi ve ısı kapasitesi termodinamik olarak incelenmiştir. KFVT sistem dikdörtgen bir akışkan kanalına sahip olup dikdörtgen kanalın en/boy oranı değiştirilerek elde edilen modül sıcaklıkları, elektrik üretimi ve akışkan sıcaklıkları birbiri ile karşılaştırılmıştır. Isı transfer akışkanı olarak organik soğutucular kullanılmıştır. Akışkanların değişken termo fiziksel özellikleri sistemin elektriksel verimini ve atık ısı miktarını farklı oranlarda etkilemiştir. Termodinamik analizler sonucu elde edilen bulgular elektrik üretimini, modül sıcaklılarını, akışkan çıkış sıcaklıklarını ve sistem verimini içeren grafikler halinde sunulmuştur.", "language": "tr", "english_title": "The Effect of Refrigerant Type and Channel Geometry on Electrical Efficiency and Heating Capacity in a Concentrated Photovoltaic Thermal System", "english_abstract": "With the advancements in technology, increasing greenhouse gas emissions and global warming problems have significantly increased the use of renewable energy sources. Renewable energy sources can be classified as solar energy, wind energy, geothermal energy, hydraulic energy, biomass energy, and hydrogen energy. Solar energy holds a very important place among renewable energy sources due to its large amount of thermal radiation emission, cleanliness, and unlimited availability. Concentrated photovoltaic thermal systems (CFVTs) are one of the devices used to obtain electrical and thermal energy from solar energy. In a CFVT system, solar energy is directly converted into electricity, and the waste heat generated on the photovoltaic module is used to heat the refrigerants. In this study, the electrical production and heat capacity obtained by using different refrigerants and changing the channel geometry in a CFVT system are investigated thermodynamically. The KFVT system has a rectangular fluid channel, and the module temperatures, electricity generation, and fluid temperatures obtained by varying the aspect ratio of the rectangular channel were compared. Organic refrigerants were used as heat transfer fluids. The varying thermophysical properties of the fluids affected the electrical efficiency and waste heat amount of the system at different rates. The findings obtained from the thermodynamic analyses are presented in graphs showing electricity generation, module temperatures, fluid outlet temperatures, and system efficiency.", "doi": "10.36287/setsci.4.6.089", "doi_url": "https://doi.org/10.36287/setsci.4.6.089", "resource_url": "https://www.set-science.com/a/8c8c829b-4cd7-4ce3-a5e5-f81545a9ce50", "pdf_url": "https://www.set-science.com/a/8c8c829b-4cd7-4ce3-a5e5-f81545a9ce50/pdf", "og_image": "https://www.set-science.com/assets/img/og-card-v2.png", "authors": [ { "public_id": "ba198628-9689-4879-a9ce-5f8723796105", "given": "Burak", "family": "Kurşun", "full": "Burak Kurşun", "literal": null, "orcid": null, "orcid_url": null, "email": "burak.kursun@amasya.edu.tr", "corresponding": true, "sequence": "first", "affiliations": [ { "name": "Amasya University", "department": null, "country": null, "country_code": null, "ror": null, "ror_url": null } ] }, { "public_id": "e666ae7b-6c75-409b-8a5d-62cd38aaa4ec", "given": "Korhan", "family": "Ökten", "full": "Korhan Ökten", "literal": null, "orcid": null, "orcid_url": null, "email": "korhan.okten@amasya.edu.tr", "corresponding": false, "sequence": "additional", "affiliations": [ { "name": "Amasya University", "department": null, "country": null, "country_code": null, "ror": null, "ror_url": null } ] } ], "keywords": [], "translations": [ { "language": "en", "title": "The Effect of Refrigerant Type and Channel Geometry on Electrical Efficiency and Heating Capacity in a Concentrated Photovoltaic Thermal System", "abstract": "With the advancements in technology, increasing greenhouse gas emissions and global warming problems have significantly increased the use of renewable energy sources. Renewable energy sources can be classified as solar energy, wind energy, geothermal energy, hydraulic energy, biomass energy, and hydrogen energy. Solar energy holds a very important place among renewable energy sources due to its large amount of thermal radiation emission, cleanliness, and unlimited availability. Concentrated photovoltaic thermal systems (CFVTs) are one of the devices used to obtain electrical and thermal energy from solar energy. In a CFVT system, solar energy is directly converted into electricity, and the waste heat generated on the photovoltaic module is used to heat the refrigerants. In this study, the electrical production and heat capacity obtained by using different refrigerants and changing the channel geometry in a CFVT system are investigated thermodynamically. The KFVT system has a rectangular fluid channel, and the module temperatures, electricity generation, and fluid temperatures obtained by varying the aspect ratio of the rectangular channel were compared. Organic refrigerants were used as heat transfer fluids. The varying thermophysical properties of the fluids affected the electrical efficiency and waste heat amount of the system at different rates. The findings obtained from the thermodynamic analyses are presented in graphs showing electricity generation, module temperatures, fluid outlet temperatures, and system efficiency.", "keywords": [ "Fotovoltaik termal sistem, Güneş enerjisi, Soğutucu akışkan" ] } ], "subjects": [], "subject_names": [], "published_date": "2019-12-22", "published_year": "2019", "received_date": null, "accepted_date": null, "volume": "9", "issue": null, "page_first": "351", "page_last": "356", "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": "Bahaidarah, H. 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