Volume 13, Issue 3 (2011)                   JAST 2011, 13(3): 387-398 | Back to browse issues page

XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Emadi B, Saiedirad M H. Moisture-Dependent Physical Properties of Saffron Flower. JAST 2011; 13 (3) :387-398
URL: http://jast.modares.ac.ir/article-23-6484-en.html
1- Department of Agricultural Machinery, Ferdowsi University of Mashhad, P. O. Box 1163, Mashhad, Islamic Republic of Iran
2- Khorasan Agricultural and Natural Resources Research Center, Mashhad, Islamic Republic of Iran
Abstract:   (5535 Views)
In order to provide the data needed for the design of saffron processing equipment, physical properties of its flower were investigated. These properties included dimensions, mass, true and bulk densities, porosity, static and dynamic coefficients of friction, and terminal velocity as a function of moisture content. The average range of these properties for the three different parts of saffron flower was about 0.03 to 0.16 gcm-3 for bulk density, 0.55 to 1.56 gcm-3 for true density, and 85.2 to 95.5% for porosity. Also, the coefficients of friction were measured for three flower parts by using three surface materials including plywood, iron, and galvanized steel sheets. The minimum and the maximum values of static coefficients of friction were found on galvanized steel sheet. They were 0.8 and 2.14 for anther and stigma, respectively. The dynamic coefficient of friction ranged from 0.45 for anther on iron to 1.14 for petal on galvanized steel sheet. The variation range of terminal velocity for three different parts of the flower was recorded between 0.9 and 2.38 ms-1. The results of friction coefficients and terminal velocity measurements suggest that, based on these properties, design of a separator for saffron flower parts is feasible.
Full-Text [PDF 1110 kb]   (5869 Downloads)    

Received: 2011/01/18 | Accepted: 2011/01/18 | Published: 2011/01/18

Add your comments about this article : Your username or Email:
CAPTCHA

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.