Optimization of the humidification of cold stores by pressurized water atomizers based on a multiscale CFD model

Delele, Mulugeta Admasu; Schenk, Ann; Tijskens, Engelbert; Ramón, Herman; Nicolaı̈, Bart; Verboven, Pieter

doi:10.1016/j.jfoodeng.2008.08.027

Cited by 117 publications

(73 citation statements)

References 35 publications

(50 reference statements)

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“…The satisfactory agreement with experimental data indicated a sufficient accuracy of the CFD simulations. Other studies using this turbulence model with wall functions also found a good agreement with experiments (Ambaw et al, 2013c;Delele et al, 2009). …”

Section: Numerical Simulationsupporting

confidence: 83%

Exploring ambient loading of citrus fruit into reefer containers for cooling during marine transport using computational fluid dynamics

Defraeye

Cronjé

Verboven

et al. 2015

Postharvest Biology and Technology

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Defraeye T., Cronjé P., Verboven P., Opara U.L., , Exploring ambient loading of citrus fruit into reefer containers for cooling during marine transport using computational fluid dynamics, Postharvest Biology and Technology 108, 91-101. AbstractA promising cold-chain protocol is explored as an alternative to the commonly-used forced-air pre-cooling (FAC) of citrus fruit prior to shipping: ambient loading of fruit in reefer containers for cooling during long-haul marine transport. Despite the multiple logistical and economical savings it provides, the potential of "ambient loading" of fruit in reefer containers has been left largely unexplored. The present study targets this aspect, but also cooling by vertical airflow in general. Computational fluid dynamics (CFD) is used to identify differences in cooling rate and uniformity between individual boxes at different heights on a pallet and between individual fruit within a single box. Simulations show that low airflow rates, typical for refrigerated containers, do not only induce slower fruit cooling, compared to FAC airflow rates, but also the cooling heterogeneity between different layers of boxes (in height) and between individual fruit in a single box is larger. In addition, the presence of gaps between pallets invokes airflow short-circuiting, leading to highly reduced fruit cooling rates. Finally, strategies for future improvement of the ambient loading protocol are proposed, which in the first place should target faster and more uniform cooling. Keywordscomputational fluid dynamics; package design; cold chain; airflow short-circuits; vent holes; convective transfer Defraeye T., Cronjé P., Verboven P., Opara U.L., , Exploring ambient loading of citrus fruit into reefer containers for cooling during marine transport using computational fluid dynamics, Postharvest Biology and Technology 108, 91-101.http://dx

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Section: Numerical Simulationsupporting

confidence: 83%

Exploring ambient loading of citrus fruit into reefer containers for cooling during marine transport using computational fluid dynamics

Defraeye

Cronjé

Verboven

et al. 2015

Postharvest Biology and Technology

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“…CFD simulation has been widely used in the description and design of post-harvest facilities, including products and packaging (Defraeye et al, 2014;Delele et al, 2013a, b;Ferrua and Singh, 2009), storage facilities (Chourasia et al, 2007;Delele et al, 2009;Foster et al, 2006), and refrigerated transport (Moureh et al, 2009a, b;Tapsoba et al, 2007). This study addresses the optimization of the gas exchange system for transportation with CA.…”

Section: Discussionmentioning

confidence: 99%

“…Moureh et al (2004) and Mitoubkiet et al (2006) investigated air velocity, temperature field, and other parameters in a car body by applying the CFD method in different turbulent models. Such methods have also been utilized in the study of airflows in packages (Delele et al, 2013;Defraeye et al, 2013), thermonebulization fungicide fogging systems (Delele et al, 2012), and humidification of cold stores (Delele et al, 2009). Therefore, the CFD method can solve many problems related to heat and mass transfer in fresh-keeping systems as well as aid in investigating the gas exchange process in containers.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Gas Exchange in Fresh-keeping Transportation Containers with a Controlled Atmosphere

Lü

Wang

et al. 2016

FSTR

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“…With the actual physical model, constructing the reasonable mathematical model, and the analogue simulation, we can obtain the result which is similar to the experimental research, and can change the condition flexibly, save a lot of time and cost. At present, CFD has been used in all aspects of cold storage research, involving the temperature field, gas flow field, humidity field, pressure field [11,12,13,14], etc. There are some precedents that CFD was used to simulate the airflow in the air space in an air supply duct system [15].…”

Section: Model Selectionmentioning

confidence: 99%

The Simulation and Research of Fiber Cloth Duct System

Xie¹,

Liu²,

Tang³

et al. 2017

dtmse

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Abstract. This paper introduces a new fiber cloth duct in cold storage, by comparing two commonly used organization forms of cold storage. This paper builds the mathematics model of the flow field of this cloth duct by computational fluid dynamics (CFD) for the three-dimensional steady numerical simulation. The results show that the distribution of temperature and velocity of the airflow organization with such cloth duct is more uniform and stable.

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Optimization of the humidification of cold stores by pressurized water atomizers based on a multiscale CFD model

Cited by 117 publications

References 35 publications

Exploring ambient loading of citrus fruit into reefer containers for cooling during marine transport using computational fluid dynamics

Exploring ambient loading of citrus fruit into reefer containers for cooling during marine transport using computational fluid dynamics

Numerical Simulation of Gas Exchange in Fresh-keeping Transportation Containers with a Controlled Atmosphere

The Simulation and Research of Fiber Cloth Duct System

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