Agricultural and Biosystems Engineering Publications
Campus Units
Agricultural and Biosystems Engineering
Document Type
Article
Publication Version
Published Version
Publication Date
7-1-2008
Journal or Book Title
Journal of Applied Poultry Research
Volume
17
Issue
2
First Page
283
Last Page
295
Research Focus Area(s)
Animal Production Systems Engineering
DOI
10.3382/japr.2006-00055
Abstract
Fans are key components of mechanically ventilated poultry housing. When installed, the fan is often fitted with 1 or more accessories, including safety guards, shutters, and discharge cones. These first 2 accessories usually reduce the airflow and fan efficiency, whereas discharge cones improve airflow. Field performance of a fan is further impacted by accumulated dirt on the blades and shutters, mechanical wear, and degree of maintenance. Performance of all ventilation fans on 2 commercial broiler farms was determined during an air emission monitoring project. Each fan was tested using the Fan Assessment Numeration System at a range of static pressures typical of its regular operating range. The performance of otherwise identical fans was shown to vary by up to 24%. This variation in performance is attributed to accumulated dirt and corrosion, differences in the resistance to flow imposed by the shutters, and differences in motor and bearing wear due to run time and aging. A small reduction in fan speed from slipping or worn belts had a large effect on airflow generated by the 1,220-mm (48 in.) diameter fans. The power consumption of each fan was also measured as part of the evaluation process and revealed considerable variation among these fans.
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Copyright Owner
Poultry Science Association, Inc.
Copyright Date
2008
Language
en
File Format
application/pdf
Recommended Citation
Casey, K. D.; Gates, R. S.; Wheeler, E. F.; Xin, H.; Liang, Y.; Pescatore, A. J.; and Ford, M. J., "On-Farm Ventilation Fan Performance Evaluations and Implications" (2008). Agricultural and Biosystems Engineering Publications. 1178.
https://lib.dr.iastate.edu/abe_eng_pubs/1178
Included in
Agriculture Commons, Bioresource and Agricultural Engineering Commons, Poultry or Avian Science Commons
Comments
This article is published as Casey, K. D., R. S. Gates, E. F. Wheeler, H. Xin, Y. Liang, A. J. Pescatore, and M. J. Ford. "On-farm ventilation fan performance evaluations and implications." Journal of Applied Poultry Research 17, no. 2 (2008): 283-295. doi: 10.3382/japr.2006-00055.