Air Flow Simulation Through the Stack of Onions During Storage Using Computational Fluid Dynamics

DOI

10.2991/978-94-6463-122-7_26How to use a DOI?

Keywords

Geometric approach; CFD; Onions; Simulation; Air velocity

Abstract

The storage of ‘perishable’ horticultural products, such as onions (Allium cepa L.), must be equipped with an even air distribution. Uniform airflow in the product stack is important for quality maintenance. However, the air velocity in most of the storage space used in each part of the product stack is unknown. This study aims to measure air distribution conditions among product stacks inside the storage box. In addition, it is important to know the effect of mesh and inlet velocities on air distribution. The velocity distribution of airflow is measured by computational fluid dynamics (CFD) through the geometric approach of onions to spherical shapes. At different points inside the onion-filled storage box, the air velocity is simulated through the inlet. Varied air velocity is 0.5 m/s, 0.1 m/s, 1.5 m/s, 2 m/s, and 2.5 m/s. In the storage box at the edge, the air velocity is about twice as high as in the storage box at the centre. The flow patterns in the ripples of the onion stack indicate connections with each other at varying air velocities depending on the small size of the ripples in a stack. Increasing the air velocity at the inlet will increase the flow velocity of the air through the edge of the stack and the large gap. However, airflow remains detected at all position measurements even when the air velocity at the inlet is set to 0.5 m/s.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

TY  - CONF
AU  - Ira Ayuningsih
AU  - An N. F. Rahmah
AU  - Devi Priyanti
AU  - Joko N. W. Karyadi
AU  - Bayu Nugraha
PY  - 2023
DA  - 2023/05/22
TI  - Air Flow Simulation Through the Stack of Onions During Storage Using Computational Fluid Dynamics
BT  - Proceedings of the 3rd International Conference on Smart and Innovative Agriculture (ICoSIA 2022)
PB  - Atlantis Press
SP  - 295
EP  - 303
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-122-7_26
DO  - 10.2991/978-94-6463-122-7_26
ID  - Ayuningsih2023
ER  -