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.
2010
Volume 13
Issue 4
Topic:
Agricultural Engineering
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Chegini G. , Bashiri B. , Ashjaei M. 2010. MEASUREMENT OF DROPLET SIZE DISTRIBUTION CHARACTERISTICS OF A SPRAY DRYER-ROTARY ATOMIZER USING PHASE DOPPLER ANEMOMETRY TECHNIQUE, EJPAU 13(4), #04.
Available Online: http://www.ejpau.media.pl/volume13/issue4/abs-04.html

MEASUREMENT OF DROPLET SIZE DISTRIBUTION CHARACTERISTICS OF A SPRAY DRYER-ROTARY ATOMIZER USING PHASE DOPPLER ANEMOMETRY TECHNIQUE

Gholam Reza Chegini1, Behzad Bashiri2, Mohamad Ashjaei2
1 Department of Mechanical Engineering of Biosystems, College of Aboureihan, University of Tehran, Tehran, Iran
2 Department of Agrtechnology, College of Aboureihan, University of Tehran, Iran

 

ABSTRACT


Experimental tests were conducted for measuring spray size distribution characteristic and power consumption of a spray dryer rotary atomizer using Phase Doppler Anemometry (PDA). For different operating condition of rotary atomizer: 7000-26000 rpm disk speed and 20–80 l/h feed flow rate, the main parameters of spray such as Dv0.1, Dv0.9, SMD and VDM were measured. Statistical analysis indicated that feed flow rate and atomizer speed, except RSF value, are significant effect on spray characteristics. At constant atomizer speed, by increasing feed flow rate from 20 to 80 l/h, SMD and Dv0.1 decreased, VMD unchanged, and Dv0.9 increased. Also, at constant feed flow rate, by increasing atomizer speed, all spray characteristic of Dv0.1, v0.9, VMD and SMD decreased. With increasing the atomizer speed and feed flow-rate, obviously power consumption increased.

Key words: spray drying, power consumption, PDA, spray characteristic.

Gholam Reza Chegini
Department of Mechanical Engineering of Biosystems, College of Aboureihan, University of Tehran, Tehran, Iran
Telephone: 098 21 360 406 14
Cell phone: 0989126356329
email: chegini@ut.ac.ir

Behzad Bashiri
Department of Agrtechnology,
College of Aboureihan, University of Tehran, Iran


Mohamad Ashjaei
Department of Agrtechnology,
College of Aboureihan, University of Tehran, Iran

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.

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