The use of CFD to characterize and design post-harvest storage facilities: Past, present and future

Ambaw, Alemayehu; Delele, Mulugeta Admasu; Defraeye, Thijs; Ho, Quang Tri; Opara, Umezuruike Linus; Nicolaı̈, Bart; Verboven, Pieter

doi:10.1016/j.compag.2012.05.009

Cited by 108 publications

(45 citation statements)

References 60 publications

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“…S. Duret et al 2014, in his experiment, show that return air velocity is higher as compare to air supply velocity in the rear section of cold storage, it causes relatively low heat transfer at the rear section in comparison with cooling coil side [11,12,13]. CFD modeling of cold store units required some specific features as there are large airflow obstacles by means of stockpiling of agricultural goods, air-conditioning systems affect room boundary condition, the evaporator unit can be treated as a source of momentum and low air velocity ± 3m/s with turbulence [14,15,20].…”

Section: Computational Depiction Of Transportation Phenomenon Controlmentioning

confidence: 99%

Computational Depiction of Transportation Phenomenon Control using Auxiliary Draught in Cold Storage

Mishra*,

Aharwal

2019

IJRTE

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Computational Flow Analysis Enables To Demonstrate Large Cold Storage Air Distribution. Thermal Performances Of The Cold Storage Are Based On Airflow Mechanism In A Closed Chamber. Experimental Investigation On Cold Store A Costly Affair Thus, In This Paper The Impact Of Auxiliary Draught System (Ads) On Airflow Distribution Is Carried Out With The Help Of Computational Fluid Dyanamics (Cfd). Experimental Validation Shows A 26% Of Error In Simulation Results. Cfd Results Reflect That Use Of Ads Reduces Cooling Time By 25%. Auxiliary Draught Ensures A Homogeneous Environment Inside The Plant.

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Section: Computational Depiction Of Transportation Phenomenon Controlmentioning

confidence: 99%

Computational Depiction of Transportation Phenomenon Control using Auxiliary Draught in Cold Storage

Mishra*,

Aharwal

2019

IJRTE

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“…Ambaw et al (2013) found that the separate domains approach is an established simulation practice when they reviewed the usage of CFD to characterise and design post-harvest storage facilities. When the CFD calculations were based on a porous medium, the CFD simulations to predict flow were all stationary.…”

Section: Notice Frommentioning

confidence: 99%

“…Maintaining the quality of agro-materials during storage is realised by minimising respiratory heat generation, retarding ripening and sprouting, and preventing moisture loss and microbial spoilage (Ambaw et al, 2013). Current facilities use climate-based control to maintain the air quality at a certain level.…”

mentioning

confidence: 99%

Modelling ventilated bulk storage of agromaterials: A review

Grubben

Keesman

2015

Computers and Electronics in Agriculture

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“…To optimize the design of refrigerated vehicles for urban refrigerated transport, some studies have looked at how different aperture ratios and curtains affect the temperature inside a refrigerated compartment. Meanwhile, computational fluid dynamics (CFD) has become the method of choice for researchers to study the micro environment of compartments and confined spaces in agriculture, especially in refrigerated transportation (Ambaw, Delele, et al, ; Ambaw, Verboven, et al, ; Chourasia & Goswami, ; Delele et al, ; Getahun, Ambaw, Delele, Meyer, & Opara, ; Opara & Zou, ; Zhao, Han, Yang, Qian, & Fan, ). Tso, Yu, Poh, and Jolly () experimentally studied the characteristics of heat and mass transfer within a refrigerated vehicle while the doors were open and discussed three types of door conditions: without air curtains, with a fan air curtain, and with a plastic‐strip curtain.…”

Section: Introductionmentioning

confidence: 99%

Computational fluid dynamic study of thermal effects of open doors of refrigerated vehicles

Zhang

Han

Qian

et al. 2017

J Food Process Engineering

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In this work, we use computational fluid dynamics (CFD) models to compare the advantages and disadvantages of various door geometries by looking at how open doors of four different door geometries affect the stability of the temperature inside a refrigerated vehicle during unloading. The results show that, with opening D1 and D2, D3 and D4, D1, D4, the temperature increases from 4 °C to 22.34, 22.65, 20.39, and 21.32 °C after 4 min, respectively. The coefficients of temperature variation are .009, .011, .015, and .014, respectively. The volume infiltration flow rates are 2.202, 2.189, 0.983, and 0.961 m3/s, respectively. Comparing the coefficients shows that opening the D1D2 doors does not significantly perturb the temperature of the carriage, and opening the D1 door modifies the temperature less than opening the D4 door. The maximum root‐mean‐square error for volume mean temperature and wind speed is 1.21 °C and 0.27 m/s, respectively. Practical applications In urban cold‐chain delivery and distribution, the main solution to maintain temperature stability on opening the doors is to limit the number of doors and their area relative to the volume of the refrigerated vehicle. As a result, it is very important to optimize the structural design of refrigerated vehicles to reduce energy consumption, enhance temperature stability inside the refrigerated compartment, and ensure the quality and safety of the perishable food stored within. In this study, the evaluation index is used with CFD technology to study how open doors of various sizes and at different locations affect the temperature inside the refrigerated vehicle. This research provides not only a more detailed understanding of flow distribution and temperature variations inside the carriage while opening the door of a refrigerated compartment but also a reliable theoretical basis for optimizing the design of refrigerated vehicles.

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The use of CFD to characterize and design post-harvest storage facilities: Past, present and future

Cited by 108 publications

References 60 publications

Computational Depiction of Transportation Phenomenon Control using Auxiliary Draught in Cold Storage

Computational Depiction of Transportation Phenomenon Control using Auxiliary Draught in Cold Storage

Modelling ventilated bulk storage of agromaterials: A review

Computational fluid dynamic study of thermal effects of open doors of refrigerated vehicles

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