IIR document
Steady state CFD modelling of airflow, heat transfer and moisture loss in a commercial potato cold store.
Author(s) : CHOURASIA M. K., GOSWAMI T. K.
Type of article: Article, IJR article
Summary
Storage loss beyond permissible limit is one of the most important problems in Indian potato cold stores, which has been hindering further growth of this industry. The losses in the stored potatoes have a direct relation to the intricate coupled transport phenomena of heat, mass and momentum transfer therein. Therefore, airflow, heat transfer and moisture loss was investigated in a potato cold store of commercial scale under steady state condition using the computational fluid dynamics technique. The developed CFD model was a two-dimensional simplification of the cold store. Heat and mass transfer at the cooling coils were not modeled, instead temperature and relative humidity in the air space were specified based on measured values. The model was validated in a commercial scale cold store and was found to be capable of predicting the air velocity as well as product temperature with an average accuracy of 19.5% and 0.5°C, respectively and also the simulated average total moisture loss was found to be only 0.61% water (w.b.) higher than the experimental one for a storage period of 6 months. The main deficiencies of the airflow pattern which resulted in wide variations in temperature and moisture loss within the stored commodity can be investigated. The model located the probable zones of hot and cold spots, excessive product dehydration and moisture condensation within the storage facility, which might lead to qualitative and quantitative deterioration in stored product. This modeling tool could very well be applied to incorporate necessary design improvements with a view to improve the airflow distribution and heat transfer in order to limit the storage losses within the permissible limit.
Available documents
Format PDF
Pages: 672-689
Available
Public price
20 €
Member price*
Free
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: Steady state CFD modelling of airflow, heat transfer and moisture loss in a commercial potato cold store.
- Record ID : 2007-1197
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 30 - n. 4
- Publication date: 2007/06
Links
See other articles in this issue (15)
See the source
Indexing
-
Themes:
Food engineering;
Multipurpose cold stores;
Vegetables - Keywords: Potato; CFD; Mass transfer; Heat transfer; Air; Modelling; Cold store; Flow
-
Ein Modell zur Simulation des Lagerklimaverlauf...
- Author(s) : GOTTSCHALK K.
- Date : 2004/03
- Languages : German
- Source: KI Luft Kältetech. - vol. 40 - n. 3
View record
-
CFD modelling of vegetable cold storage chamber.
- Author(s) : KOLODZIEJCZYK M., BUTRYMOWICZ D.
- Date : 2011/08/21
- Languages : English
- Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
- Formats : PDF
View record
-
Airflow characteristics in the cold room of cul...
- Author(s) : KHALIL E. E.
- Date : 2005/03/28
- Languages : English
- Source: Latest Developments in Refrigerated Storage, Transportation and Display of Food Products.
- Formats : PDF
View record
-
Current methods of potato ventilation.
- Author(s) : LEPPACK E.
- Date : 1993
- Languages : German
- Source: Kartoffelbau - vol. 44 - n. 8
View record
-
Ventilation of potatoes in storage boxes.
- Author(s) : HOFFMANN T., MALY P., FÜRLL C.
- Date : 2007/05
- Languages : English
- Source: Agric. Eng. Int., CIGR E-J. - vol. 9 - n. FP 06 014
View record