Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2012
Volume 15
Issue 3
Topic:
Agricultural Engineering
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Ranjbaran M. , Zare D. 2012. A NEW APPROACH FOR MODELING OF HOT AIR-MICROWAVE THIN LAYER DRYING OF SOYBEAN, EJPAU 15(3), #01.
Available Online: http://www.ejpau.media.pl/volume15/issue3/abs-01.html

A NEW APPROACH FOR MODELING OF HOT AIR-MICROWAVE THIN LAYER DRYING OF SOYBEAN

Mohsen Ranjbaran1, Dariush Zare2
1 Agricultural Engineering Department Shiraz University
2 Biosystems Engineering Department, Faculty of Agriculture, Shiraz University, Iran

 

ABSTRACT

The drying characteristics of soybean during combined hot air-microwave drying were examined. The experiments were carried out for combination of five microwave power densities (0.89, 1.6, 3.2, 4.3, 5.3 W/g) and four levels of air temperatures (30, 40, 50 and 60 C). Among several models which were fitted to the experimental data, the Modified Two Term model was introduced to be the most appropriate model to predict moisture ratio as a function of air temperature and microwave power density. The effective moisture diffusivity was calculated in the range from 8.74010-10 m2/s to 3.966410-9 m2/s.

Key words: hot air-microwave drying, effective moisture diffusivity, thin layer drying, soybeans.


Mohsen Ranjbaran
Agricultural Engineering Department
Shiraz University
Shiraz, Iran
email: agricmachinary@yahoo.com

Dariush Zare
Biosystems Engineering Department, Faculty of Agriculture, Shiraz University, Iran
P.O. Box 7144165186, Shiraz, Iran
Phone: +98 711 6138192; Fax: +98 711 2286104
email: dzare@shirazu.ac.ir

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.