Bakır Katkılı Nikel Oksit Sentezi ve Hibrit Nanoyağlayıcıların Kompresör Yağı Olarak Uygulaması

Yıl 2021, Cilt: 7 Sayı: 2, 134 - 142, 30.08.2021

Mustafa Akkaya , Erdi Akman

Öz

Nanoyağlayıcılar, katı nanopartiküllere sahip oldukları için iyi ısı transfer özelliklerine sahiptir. Bu çalışmada, % 2,0 oranında bakır (Cu), basit bir kimyasal çökeltme yöntemi ile nikel oksit (NiO) nanopartiküllerine katkılanmıştır. Sentezlenen nanopartiküller, ağırlıkça % 0,5 ve % 1,0 oranlarında baz sıvı mineral yağ (MO) ile fiziksel olarak karıştırıldı. Hazırlanan süspansiyonda, yüzey geriliminin üstesinden gelmek için ağırlıkça % 0,5 oranında sodyum dodesil benzen sülfonat (SDBS) yüzey aktif malzemesi de kullanıldı. Bu şekilde soğutma sisteminde farklı konsantrasyonlarda NiO ve Cu katkılı NiO nanopartiküller ile hazırlanan nanoyağlayıcılar kullanılmıştır. Soğutma sisteminde ağırlıkça % 0,5 oranında NiO nanopartiküller ile hazırlanan nanoyağlayıcı kullanıldığında kompresör işi 24,971 kJ/h olarak hesaplanmıştır. Kompresör yağı olarak sırasıyla % 0,5 ve % 1,0 kütle oranlarında eklenmiş, Cu katkılı NiO nanopartiküller ile hazırlanan nanoyağlayıcı kullanıldığında kompresör işi 23,313 kJ/h ve 23,058 kJ/h olarak hesaplanmıştır. NiO tabanlı nanopartiküller, yüksek performanslı hibrit nanoyağlayıcı uygulamaları için umut verici bir malzeme olarak görülebilir.

Anahtar Kelimeler

Kompresör işi, Cu katkılı NiO sentezi, Hibrit nanoyağlayıcı, Mineral Yağ.

The Synthesis Copper-doped Nickel Oxide and Application of Hybrid Nano-lubricants as a Compressor Oil

Öz

Nano-lubricants have good heat transfer properties due to having solid nanoparticles. In this report, 2.0% copper (Cu) were doped nickel oxide (NiO) nanoparticles by a facile chemical precipitation method. The synthesized nanoparticles were physically mixed with the base liquid mineral oil (MO) at 0.5% and 1.0% mass fraction. Sodium dodecyl benzene sulphonate (SDBS) surface active material at 0.5% mass fraction was also used in the prepared suspension in order to overcome the surface tension. In this way, nano-lubricants prepared with different concentrations of NiO and Cu-doped NiO nanoparticles were used in the refrigeration system. The compressor work was calculated as 24.971 kJ/h when nano-lubricant prepared with NiO nanoparticles at 0.5% mass fraction was used in the refrigeration system. Compressor work was calculated as 23.313 kJ/h and 23.058 kJ/h when using nano-lubricant prepared with NiO nanoparticles with Cu added in 0.5% and 1.0% mass fraction, respectively, as the compressor oil. The NiO-based nanoparticles can be a promising material for high-performance hybrid nano-lubricants applications.

Anahtar Kelimeler

Compressor work, Cu-doped NiO synthesis, Hybrid nano-lubricant, Mineral Oil.

Kaynakça

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