• M Sai Chandra Sekhar
• MD.Mansoor Ahamed
• K.Naga sai Raveendra
• K Prabhu Kumar

Nowadays, different materials with various nanostructures are used as additives for improving properties of lubricants. Many researchers have tried to improve the thermal physical properties of lubricants and to decrease friction coefficients. One approach is simply the use of additives in the base lubricant to change its properties. Recently, nanoparticles have emerged as a new kind of additive because of their size, shape and other properties. A nanolubricant is a new kind of engineering lubricant made of nanoparticles dispersed in the base lubricant. The objective of this thesis is to improve thermal properties of nanolubricant for refrigeration application. This paper will also give recommendations for lubrication of compressor in refrigeration compressors based on the results. In this study, Copper oxide (CuO) and zinc oxide (ZnO) nanoparticles were used to prepare nanolubricant to enhance the thermo physical properties and lubrication characteristics. In this work the base lubricant used was polyolester oil dispersed with nanoparticles of 40 nm used as additives with various concentrations. Dispersion procedure used to prepare nanolubricant containing different amounts of nanoparticles (0.25, 0.5, 0.75, and 1%) by magnetic stirrer and sonicator. The thermo physical properties of nanolubricants, i.e., viscosity, density, thermal conductivity and frictional coefficient were investigated.

COMPARSION OF THERMAL CONDUCTIVITY AND RHEOLOGICAL PROPERTIES OF NANO LUBRICANTS

"COMPARSION OF THERMAL CONDUCTIVITY AND RHEOLOGICAL PROPERTIES OF NANO LUBRICANTS ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.197-203, May-2019, Available :http://www.jetir.org/papers/JETIRBT06028.pdf

"COMPARSION OF THERMAL CONDUCTIVITY AND RHEOLOGICAL PROPERTIES OF NANO LUBRICANTS ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp197-203, May-2019, Available at : http://www.jetir.org/papers/JETIRBT06028.pdf