Encyclopedia of Agrophysics

2011 Edition
| Editors: Jan Gliński, Józef Horabik, Jerzy Lipiec

Aeration of Agricultural Products

  • Marek Molenda
Reference work entry
DOI: https://doi.org/10.1007/978-90-481-3585-1_5

Definition

Aeration, that is, forced ventilation of ambient or refrigerated air through stored products is necessary to maintain their quality. The main purpose of aeration is to minimize a risk of storage losses through equalizing temperatures in a bedding in order to minimize moisture movement, to cool product for pest control, and to stop product heating.

Background

Certain biological reactions generate heat and often it is necessary to remove it, that is, to cool the product. Heating and cooling (see  Heat Diffusion) large amounts of biological material require energy and time so the knowledge about the process is necessary to optimize operations. Heating or cooling is not an uniform inside the volume of layer of material, rather heating or cooling front passes through the material. The velocity and thickness of the front are dependent on the air velocity (see  Air Flux (Resistance) in Plants and Agricultural Products), the evaporation rate, the temperature difference, and the...

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Bibliography

  1. Loewer, O. J., Bridges, T. C., and Bucklin, R. A., 1994. On-Farm Drying and Storage Systems. St. Joseph: American Society of Agricultural Engineers.Google Scholar
  2. Navarro, S., and Noyes, R. T., 2001. The mechanics and Physics of Modern Grain Aeration Management. Boca Raton: CRC Press.Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Institute of Agrophysics, Polish Academy of SciencesLublinPoland