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

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

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.

Keywords:

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

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