Nanorrefrigerant Lab Report

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Observation & Calculations for Nanorefrigerant
Graph of C.O.P. vs. Nanoparticle Concentration for Nanorefrigerant.
C.O.P RESULTS WHEN NANOPARTICLE MIXED IN R134A & POE OIL Figure 5.1. Graph of nanorefrigerant C.O.P vs. nanolubricant C.O.P.

5.2. GRAPH OF PERCENTAGE CHANGE IN THE COP OF THE SYSTEM Figure5.2. Graph of percentage C.O.P of nanorefrigerantvs. nanolubricant.
Here the result shows the percentage change in the C.O.P when the air conditioning test rig run on the nanorefrigerant and nanolubricant instead of conventional refrigerant and oil. Addition of nanoparticle in the compressor oil is showing the better result as compare to the nanorefrigerant. The maximum C.O.P is showing at 1.50% mass concentration i.e. 19.44% & 23.19 % for nanorefrigerants and nanolubricant respectfully.
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• The nanoparticle with specific concentrations of 0.25%, 0.5%, 0.75%, 1%, 1.25% and 1.50%(by mass fraction) were added in R134a & POE oil of the compressor. The performance with the nanoparticles was then investigated using C.O.P. & energy consumption tests. The result shows that the maximum COP of system were improved by 19.44% for 1.25% mass fraction when the nanorefrigerantswas used instead oftraditional refrigerants and 23.29% for 1.50% mass fraction when the nanolubricant was used instead of conventional oil.
• The power consumption of the compressor reduces by 12.83% and the refrigerant effect is increased by 7.48 % when the nanolubricant is used instead of conventional POE oil. In the other hand addition of Sio2particle in the refrigerant is not much affected on the compressor work to give better energy saving results but the refrigerant effect is considerably increased by 19.19% for 1.50% mass

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