Thermodynamic and Energy Efficiency Analysis of a Domestic Refrigerator Using Al 2 O 3 Nano-Refrigerant

Farhood Sarrafzadeh Javadi and Rahman Saidur
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Farhood Sarrafzadeh Javadi: Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
Rahman Saidur: Research Center for Nano-Materials and Energy Technology (RCNMET), School of Engineering and Technology, Sunway University, Petaling Jaya 47500, Malaysia

Sustainability, 2021, vol. 13, issue 10, 1-15

Abstract: Refrigeration systems have experienced massive technological changes in the past 50 years. Nanotechnology can lead to a promising technological leap in the refrigeration industry. Nano-refrigerant still remains unknown because of the complexity of the phase change process of the mixture including refrigerant, lubricant, and nanoparticle. In this study, the stability of Al 2 O 3 nanofluid and the performance of a nano-refrigerant-based domestic refrigerator have been experimentally investigated, with the focus on the thermodynamic and energy approaches. It was found that by increasing the nanoparticle concentration, the stability of nano-lubricant was decreased and evaporator temperature gradient was increased. The average of the temperature gradient increment in the evaporator was 20.2% in case of using 0.1%-Al 2 O 3 . The results showed that the energy consumption of the refrigerator reduced around 2.69% when 0.1%-Al 2 O 3 nanoparticle was added to the system.

Keywords: nano-refrigerant; nanofluid; refrigerator; energy efficiency; thermodynamic analysis; aluminum oxide (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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