naa a22 4500 510724892 CHVBK 20180411082931.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11947-012-0913-7 doi (NATIONALLICENCE)springer-10.1007/s11947-012-0913-7 CFD Modelling of the 3D Spatial and Temporal Distribution of 1-methylcyclopropene in a Fruit Storage Container [Elektronische Daten] [Alemayehu Ambaw, Pieter Verboven, Mulugeta Delele, Thijs Defraeye, Engelbert Tijskens, Ann Schenk, Bart Nicolai] In this paper, a direct model based on explicit geometry of stacked products in boxes was developed and used to study the diffusion, convection and adsorption of 1-methylcyclopropene (1-MCP) gas in cool stores for apple fruit. The discrete element method was employed to generate random stacking of spherical products in a box. A three-dimensional finite volume-based computational fluid dynamics model was developed, verified and used to study the distribution and partitioning of the 1-MCP gas inside loaded container. The study addressed the gas distribution in a 500L container with or without air circulation. For each case, 80kg Jonagold apples at 1°C and a 1-MCP dose of 1μLL−1 was used to collect validation data. In the presence of air circulation, diffusion-convection in air and diffusion adsorption in the product was applied. Simulations were performed with an unstructured tetrahedral mesh using the software ANSYS-CFX, a Reynolds-averaged Navier-Stokes solver. The case without air circulation was modelled as a diffusion problem in air and diffusion coupled with adsorption inside the product. Convection-diffusion-adsorption model parameters that were previously developed and validated were applied. The estimated equilibrium distribution of the 1-MCP gas equals 11, 34 and 55% as unbounded in fruit, bonded in fruit and remaining in container, respectively. Profiles of free (unbounded) and adsorbed (bounded) 1-MCP concentrations inside fruit were estimated for reduced dosages: 0.5, 0.3, 0.1 and 0.02μLL−1. Springer Science+Business Media, LLC, 2012 1-MCP nationallicence Fruit storage nationallicence Computational fluid dynamics nationallicence Gas diffusion nationallicence Gas adsorption nationallicence Ethylene nationallicence Postharvest nationallicence Ambaw Alemayehu BIOSYST-MeBioS, Katholieke Universiteit Leuven, Willem de Croylaan 42, 3001, Leuven, Belgium aut Verboven Pieter BIOSYST-MeBioS, Katholieke Universiteit Leuven, Willem de Croylaan 42, 3001, Leuven, Belgium aut Delele Mulugeta BIOSYST-MeBioS, Katholieke Universiteit Leuven, Willem de Croylaan 42, 3001, Leuven, Belgium aut Defraeye Thijs BIOSYST-MeBioS, Katholieke Universiteit Leuven, Willem de Croylaan 42, 3001, Leuven, Belgium aut Tijskens Engelbert BIOSYST-MeBioS, Katholieke Universiteit Leuven, Willem de Croylaan 42, 3001, Leuven, Belgium aut Schenk Ann BIOSYST-MeBioS, Katholieke Universiteit Leuven, Willem de Croylaan 42, 3001, Leuven, Belgium aut Nicolai Bart BIOSYST-MeBioS, Katholieke Universiteit Leuven, Willem de Croylaan 42, 3001, Leuven, Belgium aut Food and Bioprocess Technology Springer US; http://www.springer-ny.com 6/9(2013-09-01), 2235-2250 1935-5130 6:9<2235 2013 6 11947 https://doi.org/10.1007/s11947-012-0913-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11947-012-0913-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ambaw Alemayehu BIOSYST-MeBioS, Katholieke Universiteit Leuven, Willem de Croylaan 42, 3001, Leuven, Belgium aut NATIONALLICENCE 700 1- Verboven Pieter BIOSYST-MeBioS, Katholieke Universiteit Leuven, Willem de Croylaan 42, 3001, Leuven, Belgium aut NATIONALLICENCE 700 1- Delele Mulugeta BIOSYST-MeBioS, Katholieke Universiteit Leuven, Willem de Croylaan 42, 3001, Leuven, Belgium aut NATIONALLICENCE 700 1- Defraeye Thijs BIOSYST-MeBioS, Katholieke Universiteit Leuven, Willem de Croylaan 42, 3001, Leuven, Belgium aut NATIONALLICENCE 700 1- Tijskens Engelbert BIOSYST-MeBioS, Katholieke Universiteit Leuven, Willem de Croylaan 42, 3001, Leuven, Belgium aut NATIONALLICENCE 700 1- Schenk Ann BIOSYST-MeBioS, Katholieke Universiteit Leuven, Willem de Croylaan 42, 3001, Leuven, Belgium aut NATIONALLICENCE 700 1- Nicolai Bart BIOSYST-MeBioS, Katholieke Universiteit Leuven, Willem de Croylaan 42, 3001, Leuven, Belgium aut NATIONALLICENCE 773 0- Food and Bioprocess Technology Springer US; http://www.springer-ny.com 6/9(2013-09-01), 2235-2250 1935-5130 6:9<2235 2013 6 11947 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer