Thermal management and performance enhancement of domestic refrigerators and freezers via phase change materials: A review

Omara, Adil A. M.; Mohammed-Ali, A.

doi:10.1016/j.ifset.2020.102522

Cited by 28 publications

(7 citation statements)

References 99 publications

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“…The issue of reducing energy consumption in refrigerated cargo transport has been widely discussed in the literature [30][31][32][33][34]. Evans et al [35] used benchmarking surveys to collect data on the performance of chilled, frozen, and mixed (chilled and frozen stores operated from a single refrigeration system) food cold stores to identify the major factors influencing energy consumption.…”

Section: Literature Reviewmentioning

confidence: 99%

Influence of Parking Sheds on Energy Efficiency of Road Refrigerated Transport

Filina-Dawidowicz

Csiszár

2022

Energies

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The energy efficiency of road refrigerated transport is still a less researched area, despite a significant amount of energy being used for cooling perishable goods inside the refrigerated vehicle. The refrigeration units of these vehicles continuously operate while en route from the cargo sender to the recipient, even during the vehicle’s forced stopovers due to the driver’s working time limitations. This article aims to summarize the impact of the parking sheds used in rest and service areas on the energy consumption of the vehicle’s refrigeration unit. The achievable cost savings by decreasing the energy consumption of the semi-trailer’s refrigeration units are also presented. We establish a mathematical model to calculate the heat balance and verify our approach. The calculation results, which were carried out under certain operating conditions of the refrigeration unit of a semi-trailer, provide an opportunity to achieve savings on a scale of 12.03%. Lastly, ideal locations of rest and service areas with sheds along the motorways and expressways in Poland are also proposed.

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Section: Literature Reviewmentioning

confidence: 99%

Influence of Parking Sheds on Energy Efficiency of Road Refrigerated Transport

Filina-Dawidowicz

Csiszár

2022

Energies

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“…Organic PCMs have carbon-based composition; inorganic PCMs can be classified as salt-hydrate and metallic PCMs (Bista et al 2018). Eutectic PCMs are two or more organic or inorganic components combined into one substance (Omara and Mohammedali 2020). Each PCM type has advantages and disadvantages; thus, PCM selection was conducted.…”

Section: Pcm Selectionmentioning

confidence: 99%

“…They reported that COP is increased by 9.58%. Possible benefits of the use of PCMs in the refrigerators can be found in a well-structured review paper written by Omara et al (Omara and Mohammedali 2020).…”

Section: Introductionmentioning

confidence: 99%

Development and testing of a PCM enhanced domestic refrigerator with use of miniature DC compressor for weak/off grid locations

Riffat

Kutlu

Tapia-Brito

et al. 2021

International Journal of Green Energy

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This paper presents the development of a sustainable and affordable domestic refrigerator for rural areas where grid setting is weak or non-existent. The refrigerator uses a miniature refrigeration unit based on a micro direct current (DC) compressor, which can adjust its speed according to photovoltaic output variation with solar radiation intensity, in order to maximize cooling production. The experimental investigation aims to define the cooling capacity management of the refrigerator through the use of phase change materials (PCMs). PCM packs in the fridge are charged during the period of high solar radiation and, afterward, melting of PCM releases cooling to maintain a cold temperature for extra hours when solar radiation is low or not available. The paper presents the design and construction of an experimental refrigerator with a miniature refrigeration unit of a finned tube heat exchanger for the fridge cabinet; PCM selection and, particularly, the effect of heat transfer enhancement at the condenser are discussed. Lab-scale tests were carried in the UK and field tests were carried out in Ghana in a collaboration project. In lab-scale tests, it is found that a condenser modification can decrease the transient power consumption by up to 26%. In contrast, the field-testing results show that the daily power consumption can be reduced only from 0.9 to 0.84 kWh. Additionally, field testing results show that the cabinet temperature of the PCM-enhanced refrigerator rose from 7°C to 11°C after a period of 5 hr power outage.

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“…PCM has been used in various positions, such as evaporators, condensers, cooling racks [16], as well as walls of refrigerators and freezers [22]. Modeling using computational fluid dynamics (CFD) with variations in PCM positions on the back, top, and top and rear combinations in the refrigerator shows that the combined PCM position has a lower temperature than the other positions [23].…”

Section: Introductionmentioning

confidence: 99%

The Statistic Analysis of Instruments and Temperature Measurement of Freezer Wall Attached by Dry Ice Gel

Sena,

Amanah,

Suhendra

et al. 2024

E3S Web Conf.

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The need for electrical energy in Indonesia is increasing rapidly, and the use of electrical energy will increase carbon dioxide gas emissions by around 1.3% each year, which causes environmental damage. The electricity usage sector in households is higher than in industry and transportation. The need for electricity in households will increase from 49% in 2018 to 58% in the BAU (business as usual) scenario and 61% in the RK (low carbon) scenario in 2050. The leading cause of the high use of electrical energy in households is the use of cooling equipment such as air conditioners, refrigerators, and freezers. One strategy to increase energy efficiency that can be used in cooling equipment such as freezers is using phase change materials (PCM). The method in this research used phase change material of dry ice gel to maintain the temperature in the freezer although the electricity was off. The results showed that the dry ice gel PCM maintained the temperature under zero degree.

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Thermal management and performance enhancement of domestic refrigerators and freezers via phase change materials: A review

Cited by 28 publications

References 99 publications

Influence of Parking Sheds on Energy Efficiency of Road Refrigerated Transport

Influence of Parking Sheds on Energy Efficiency of Road Refrigerated Transport

Development and testing of a PCM enhanced domestic refrigerator with use of miniature DC compressor for weak/off grid locations

The Statistic Analysis of Instruments and Temperature Measurement of Freezer Wall Attached by Dry Ice Gel

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