Harran Üniversitesi Mühendislik Dergisi 2528-8733 Harran University 10.46578/humder.1197651 Energy Systems Engineering (Other) Mechanical Engineering Enerji Sistemleri Mühendisliği (Diğer) Makine Mühendisliği Bir Araç Radyatöründe Al2O3 ve MgO Nano Akışkanları Kullanımının Isı Transferine Etkisinin Deneysel Olarak İncelenmesi https://orcid.org/0000-0001-7808-7917 Çifci Harun HARRAN UNIVERSITY https://orcid.org/0000-0001-9120-2764 Karadağ Refet ADIYAMAN ÜNİVERSİTESİ https://orcid.org/0000-0001-7585-0016 Hilali İsmail HARRAN ÜNİVERSİTESİ 04 28 2023 8 1 42 53 11 01 2022 12 02 2022 Copyright © 2016, Harran University Journal of Engineering 2016 Harran University Journal of Engineering

Araç soğutma sistemlerinin en önemli elemanlarından olan radyatörlerde genel olarak su veya su-antifriz karışımları kullanılmakta olup bu akışkanlar özelliklerinden dolayı yeterli ısı transfer kapasitesine sahip değillerdir. Radyatörlerde ısıl özellikleri daha iyi olan nano akışkanlar kullanılarak daha verimli bir soğutma yapılabilmektedir.Bu çalışmada boru ve kanatçıklı yapıda olan bir araç radyatöründe farklı hacimsel konsantrasyonlarda (% 0.1, % 0.3, % 0.5) hazırlanan saf su esaslı Al2O3 ve MgO nano akışkanlarının 45, 50, 55 ve 60 ℃ giriş sıcaklıkları ve 7, 8, 9, 10 lt/dk hacimsel debilerde ısı transferine etkisi deneysel olarak incelenmiştir. Deneysel veriler kullanılarak en yüksek ısı transfer artışı; Al2O3 nano akışkanları için % 20.11, MgO nano akışkanı için ise % 27.11 olarak hesaplanmıştır. Hacimsel konsantrasyon ve debi artışı ile ısı transferi artış göstermiştir. Isı transferi açısından sıcaklığın; MgO nano akışkanları için olumlu, Al2O3 nano akışkanları için ise olumsuz etkisinin olduğu gözlenmiştir.

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