Review on frosting, defrosting and frost management techniques in industrial food freezers

Badri, Deyae; Toublanc, Cyril; Rouaud, Olivier; Havet, Michel

doi:10.1016/j.rser.2021.111545

Cited by 31 publications

(11 citation statements)

References 96 publications

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“…The samples were weighed as soon and precise as possible, but the error of frost weight shall also be calculated. The error transfer formula used to calculate the error transfer of the corresponding relative error is [50]:…”

Section: Coating Properties Tests and Methodsmentioning

confidence: 99%

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Experimental Investigation on Evaporator Surface Modification for Hydrophobicity and Frost Resistance

Liang

Wei

2023

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Frost accumulated on the surface of the evaporator leads to the increase of heat transfer resistance between the refrigerant and environmental medium, which reduces the system performance of cold storage and air source heat pump. To solve this problem, the surface-modified evaporator can achieve retardation of the frost formation, which greatly improves the heat exchange effect between the refrigerant and the external environment. In this paper, a novel coating sprayed on the evaporator was developed using the sol-gel method and the hydrophobicity, durability, and thermal conductivity were investigated. Moreover, a modified method of frost weight measurement under different temperatures and humidity was first proposed. The results showed that the coating has a favorable hydrophobic effect and thermal conductivity, and long service life. Under the standard experimental condition, the frost weight on the coating surface can be reduced up to 26.1 %. Additionally, the effect of coating composition ratio on its performance was further investigated. To sum up, this new coating has the potential for industrialized application.

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Section: Coating Properties Tests and Methodsmentioning

confidence: 99%

“…Specifically, for the cold storage system, evaporator frost leads to food corruption, and the breeding of bacteria in the storage [4], and for the air source heat pump will increase its energy consumption [5,6]. Therefore, frost formation has aroused the broad interest of researchers [7,8].…”

Section: Introduction *mentioning

confidence: 99%

Experimental Investigation on Evaporator Surface Modification for Hydrophobicity and Frost Resistance

Liang

Wei

2023

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“…Based on Table 2, temperature of uorocarbon gas during the Phase 1 is lower (35.6 ˚C) compared to Phase 2 (37.5 ˚C) after frost issue has been xed. The high uorocarbon gas temperature will short the defrost periods (Kim et al, 2013;Van, 2019;Badri et al, 2021;Mahvi et al, 2021). Therefore, the defrost activity are not effectively occur due to low in uorocarbon temperature.…”

Section: The Scenario Of Refrigerant Leakagementioning

confidence: 99%

“…al., 2013;Badri et al, 2021;Mahvi et al, 2021). It shows that the hired service technician at Facility A is lack of skill and knowledge on the best practice of uorocarbon gas management and refrigeration system.…”

mentioning

confidence: 99%

Refrigerant Management by Using Iot Technology With the Co-benefit in Energy Saving at Malaysia Food and Cold Chain Sector

Nazif

Taib

Fadhil

et al. 2022

Preprint

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Fluorocarbon gas consumption can contribute in direct and indirect impact to the environment such as ozone depletion and global warming due to fluorocarbon gas leakage and increase in electricity consumption, respectively. This study is focused on early detection of fluorocarbon gas leakage on refrigeration unit to determine scenario of fluorocarbon gas leakage management and estimate reduction potential of greenhouse gas (GHG) emission and the co-benefits in energy saving. In this study, the Internet of Things (IoT) that utilized ultrasonic sensor detection system to detect early fluorocarbon gas leakage was installed at the chiller unit at two selected facilities, A and B. After installation, the data was monitored, and any gas leakage detected was countermeasure. Results from the data monitoring, reduction potential of GHG emission and energy saving co-benefits calculated by using formula adopted from the Japan Refrigeration and Air Conditioning Industry Association, (JRAIA). The monitoring results found that different response rate towards leakage detection between two facilities A and B (chiller 1 and chiller 2) contributes to 33.9%, 60.6% and 21.3% of fluorocarbon leakage. Installation of IoT based refrigerant leakage device proved that early detection and on time countermeasures successfully reduce 30 t-CO2e/yrs (facility A) and 460 t-CO2e/yrs (facility B). Thus, proper fluorocarbon gas management is important to reduce environmental impact of the fluorocarbon gases.

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“…Frosting widely occurs in many fields of human production and life, such as meteorology [1] , transportation [2] , electric power communication [3] , and energy application [4] . In most of these fields, frosting usually brings negative impacts, especially in engineering applications.…”

Section: Introductionmentioning

confidence: 99%

Cold Plate Temperature Effect on Droplet and Frost Crystal Behaviors at the Early Condensation Frosting Stage Considering Plate Edge Effect

Zhang¹,

Song²,

Tianzhuo³

et al. 2022

Eng. Sci.

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The condensation frosting phenomenon commonly exists in engineering applications, and the relevant studies on flat plates with fixed surface temperatures are the most concerned in related fields. The existing studies usually focus on droplet condensation and frozen characteristics in the center region of cold plates and cannot reveal those near the plate edge. Therefore, a systematic study from droplet condensation to frost layer growth stages in the edge region of a cold plate was conducted in this paper. The experimental results showed that the frozen stage period of the edge-affected zone was significantly smaller than that of the unaffected zone. The ratio of average freezing wave propagation velocity in the edge-affected zone to that in the unaffected zone at plate temperatures of -9.0, -14.0, and -19.0 o C were 7. 70, 5.56, and 5.11, respectively. Besides, the area-average equivalent diameter and coverage area ratio of droplets decreased with a decrease in plate temperature at the end of their respective droplet frozen stages. This study may help to better understand temporal and spatial condensation frosting characteristics on a horizontal cold plate with right-angle edges, and guide the establishment of a staged and divisional frosting model on cold plates.

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Review on frosting, defrosting and frost management techniques in industrial food freezers

Cited by 31 publications

References 96 publications

Experimental Investigation on Evaporator Surface Modification for Hydrophobicity and Frost Resistance

Experimental Investigation on Evaporator Surface Modification for Hydrophobicity and Frost Resistance

Refrigerant Management by Using Iot Technology With the Co-benefit in Energy Saving at Malaysia Food and Cold Chain Sector

Cold Plate Temperature Effect on Droplet and Frost Crystal Behaviors at the Early Condensation Frosting Stage Considering Plate Edge Effect

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