Experimental Investigation of Performance of Domestic Refrigerator Working On R600a with Addition of TiO2 Nanolubricant

  • Unique Paper ID: 164508
  • Volume: 10
  • Issue: 12
  • PageNo: 1713-1717
  • Abstract:
  • The vapour compression refrigeration test rig compatible to R134a is utilized. In a series of experiments, the environmental friendly refrigerant R600a is used in place of R134a in the identical experimental setup, with no adjustments made to the setup. To create nanolubricating oil, TiO2 nanoparticles are dispersed by use of ultrasonication and magnetic stirring techniques. COP of system seen to be improved for addition of TiO2 in oil. Highest COP of the system is noted for the R600a mass charge of 100 grams and the TiO2 addition in oil is 0.3 g/l, COP is equal to 1.96. COP is seen to be increasing for almost all readings of 0.1g/l, 0.2g/l, and 0.3g/l TiO2 addition in oil. The mass charge of 90 grams and pure mineral oil showed lowest COP.

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