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CSME 2024/10
Volume 45 No.5
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445-452
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Enhancing Lubrication and Energy Efficiency in Refrigeration Systems Through Ultra-Dispersed Nano-Diamond Additive Implementation
Yung-Chin Chiua and Hsiao-Yeh Chua
aDepartment of Mechanical Engineering, Kun Shan University, Tainan, Taiwan 710303, ROC.
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Abstract:
This research intricately explores the potential of Ultra-Dispersed nano-Diamond (UDD) additives in augmenting the lubrication performance of refrigeration oil within refrigeration cycle systems, with a spotlight on enhancing energy efficiency and wear resistance. The experiment bifurcates into analyzing RL 32H refrigeration oil with and without the UDD additive, unraveling that the latter, especially with a 300 ppm concentration, minimizes wear scar diameter. Consequently, implementing UDD additive presents a novel and viable pathway towards energy conservation in refrigeration systems. After 527 hours of refrigeration system operation on two identical refrigerators, the power consumption for RL 32H without UDD additive was measured at 30.3 kWh, while for RL 32H with 15% of UDD additive, it was significantly lower at 21.5 kWh. This indicates that the addition of UDD additives resulted in a 29% reduction in power consumption.
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Keywords: Ultra-Dispersed nano-Diamond (UDD), Lubrication Improvement, Energy Efficiency, Wear Resistance, Refrigeration Systems.
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*Corresponding author; e-mail:
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©
2024
CSME , ISSN 0257-9731
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