Energy usage of forced air precooling of pomegranate fruit inside ventilated cartons

Mukama, Matia; Ambaw, Alemayehu; Berry, Tarl; Opara, Umezuruike Linus

doi:10.1016/j.jfoodeng.2017.07.024

Cited by 33 publications

(23 citation statements)

References 31 publications

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“…Previous research has reported their ability to modify gaseous atmosphere around the fruit, preserving physical and physio-chemical quality [ 16 , 22 ]. However, non-perforated liners negatively affect the fruit cooling rate and increase energy usage during forced air-cooling operations [ 23 , 24 ]. The authors investigated the effect of individual carton design, stack orientation, and presence of internal packaging liners.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Internal Packaging (Liners) on Moisture Dynamics and Physical and Physiological Quality of Pomegranate Fruit during Cold Storage

Lufu

Ambaw

Opara

2021

Foods

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Weight loss and decay are common physiological disorders during postharvest handling and storage of pomegranates. The study focused on relating the ability of plastic liners as internal packaging to modify both gaseous and moisture atmosphere around the fruit to moisture dynamics and physical and physiological quality of pomegranate fruit (cv. Wonderful) during storage. Fruit were packed with no-liner, non-perforated ‘Decco’, non-perforated ‘Zoe’, micro-perforated Xtend®, 2 mm macro-perforated high density polyethylene (HDPE), and 4 mm macro-perforated HDPE plastic liners. After 84 days of storage at 5 °C and 90–95% relative humidity (RH), fruit packed with no-liner lost 15.6 ± 0.3% of initial weight. Non-perforated (Decco and Zoe) liners minimised losses to 0.79 and 0.82% compared to Xtend® micro-perforated (4.17%) and 2 mm HDPE (2.44%) and 4 mm macro-perforated HDPE (4.17%) liners, respectively. Clearly, micro- and macro-perforation of liners minimised moisture condensation, fruit decay, and shrivel severity. Micro-perforated Xtend® and macro-perforated 4 mm HDPE were the best treatments in minimising postharvest losses that are often associated with inadequate environment control inside packaging compared to the use of non-perforated liners.

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Section: Introductionmentioning

confidence: 99%

The Influence of Internal Packaging (Liners) on Moisture Dynamics and Physical and Physiological Quality of Pomegranate Fruit during Cold Storage

Lufu

Ambaw

Opara

2021

Foods

Self Cite

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“…In fact, such characterization of the overall performances was not affected by the extreme values because of the sampling positions at the center of the middle layer for each bin. Therefore, such sampling positions were reasonable for analyses of the entire precooling system and more than that used in the published lab-scale 19 and full-scale 20 experiments. Although the core pulp temperature was measured, the surface pulp temperature and the volumetric mean pulp temperature had to be used for further thermodynamic analyses.…”

Section: Bin Scalementioning

confidence: 96%

Section: Multiscale Thermodynamic Analysesmentioning

confidence: 97%

“…The recent studies on FAC turned to the packaging design with promoted air flow characteristics . The effects of the packaging design, use of plastic liner, and stack orientation on the total energy consumption for FAC were experimentally studied . Full‐scale experiments in commercial forced‐air coolers were performed to study the heterogeneity affected by the package and fruit size .…”

Section: Introductionmentioning

confidence: 99%

“…18 The effects of the packaging design, use of plastic liner, and stack orientation on the total energy consumption for FAC were experimentally studied. 19 Full-scale experiments in commercial forced-air coolers were performed to study the heterogeneity affected by the package and fruit size. 20 In addition, CFD simulating models were also developed to predict and optimize the flow and heat transfer performances of FAC.…”

Section: Introductionmentioning

confidence: 99%

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Experimental performance comparison and trade‐off among air‐based precooling methods for postharvest apples by comprehensive multiscale thermodynamic analyses

Wang

Zhang

2019

Int J Energy Res

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Summary Air‐based precooling methods including room cooling and forced‐air cooling were traditionally used for postharvest horticultural products. In this study, disturbed‐air cooling with different layouts was proposed for the trade‐off between room cooling with long cooling time and forced‐air cooling with high energy consumption. Lab‐scale experiments with 30 bins of postharvest apples were conducted using the aforementioned methods to measure the temperature history. Multiscale thermodynamic analyses from energy, entropy, exergy, and entransy perspectives were then performed. The time evolution of transient quantities and overall comparison of the trade‐off performances were further discussed. The ventilation power and transformed heat became more significant respectively for the total energy consumption and heat load during the precooling processes. The rates of entropy generation, exergy destruction, and entransy dissipation reduced in consistent with the tendency of heat rejection from all bins. The major part of these losses was resulted by the ventilation for convective heat transfer between cold air and apples and became more significant during later stage of precooling processes. The middle‐parallel disturbed‐air cooling achieved the best trade‐off between the lowest energy consumption for room cooling and the lowest maximum seven‐eighths cooling time for forced‐air cooling by respectively reaching 81.68% and 28.82% of the optimization potential. The best trade‐off between the lowest thermodynamic loss for room cooling and the lowest heat transfer ability loss for forced‐air cooling was also achieved by this method with around 55% to 62% optimization of the coefficients of performance, around 83% optimization of the entropy generation ratio, around 58% to 62% optimization of the exergy destruction ratio, and around 36% optimization of the entransy dissipation ratio.

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Thermal properties of whole and tissue parts of pomegranate (Punica granatum) fruit

2018

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Energy usage of forced air precooling of pomegranate fruit inside ventilated cartons

Cited by 33 publications

References 31 publications

The Influence of Internal Packaging (Liners) on Moisture Dynamics and Physical and Physiological Quality of Pomegranate Fruit during Cold Storage

The Influence of Internal Packaging (Liners) on Moisture Dynamics and Physical and Physiological Quality of Pomegranate Fruit during Cold Storage

Experimental performance comparison and trade‐off among air‐based precooling methods for postharvest apples by comprehensive multiscale thermodynamic analyses

Thermal properties of whole and tissue parts of pomegranate (Punica granatum) fruit

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