Experimental Investigation for TiO2 nanoparticles as a Lubricant-Additive for a Compressor ofWindow Type Air-Conditioner. Journal of Engineering, [S. l.], v. 20, n. 02, p. 61–72, 2014. DOI: 10.31026/j.eng.2014.02.05. Disponível em: https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/2018. Acesso em: 26 apr. 2025.