Agricultural and Biosystems Engineering Publications
Campus Units
Agricultural and Biosystems Engineering, Veterinary Diagnostic and Production Animal Medicine
Document Type
Article
Publication Version
Published Version
Publication Date
6-4-2019
Journal or Book Title
AgriEngineering
Volume
1
Issue
2
First Page
291
Last Page
302
Research Focus Area(s)
Animal Production Systems Engineering, Land and Water Resources Engineering
DOI
10.3390/agriengineering1020022
Abstract
Fresh air intake filtration is used on commercial swine breeding-gestation-farrowing farms to reduce the frequency of airborne infectious agents. For swine producers, porcine reproductive and respiratory syndrome virus (PRRSV), influenza A virus and Mycoplasma hyopneumoniae are considered the most economically challenging airborne pathogens. Reduced frequency of disease outbreaks has been attributed to retrofitting existing systems with filtration. Economic analysis of operating costs includes energy use, maintenance and replacement of filters. Filter replacement, the largest operational cost, is dependent on filter lifespan. However, limited data is available on filter lifespan and the rate of airflow reduction during the high dust-loading periods typically encountered for filtered swine building ventilation systems. Therefore, the objectives of this study were (1) estimate the average primary filter airflow reduction per day, (2) identify the impact of factors related to site layout, filter characteristics and weather on airflow reduction rates of filters in positive-pressure ventilated buildings and (3) determine methods for reducing average primary filter airflow reduction rate per day during row-crop harvest season. Both filter brand and the installed orientation of the filter significantly (p = 0.0314, p = 0.0419, respectively) impacted airflow reduction rates. All site layout factors were significant (driveway side, p = 0.001; dormer orientation, p = 0.0001; and dormer configuration, p = 0.0001). The materials tested significantly reduced the airflow reduction rate during row-crop harvest. The information obtained in this study will aid producers when planning for filtration, highlight details relevant to the purchase and installation of filters, identify factors that affect filter lifespan and identify methods for improving filter lifespan.
Access
Open
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Copyright Owner
The Authors
Copyright Date
2019
Language
en
File Format
application/pdf
Recommended Citation
Smith, Benjamin; Hoff, Steven; Harmon, Jay; Andersen, Daniel; Zimmerman, Jeffrey; and Stinn, John, "Quantification of Site Layout and Filter Characteristics on Primary Filter Airflow Reduction on Commercial Swine Sites in Iowa" (2019). Agricultural and Biosystems Engineering Publications. 1032.
https://lib.dr.iastate.edu/abe_eng_pubs/1032
Included in
Agriculture Commons, Bioresource and Agricultural Engineering Commons, Veterinary Preventive Medicine, Epidemiology, and Public Health Commons
Comments
This article is published as Smith, Benjamin, Steven Hoff, Jay Harmon, Daniel Andersen, Jeffrey Zimmerman, and John Stinn. "Quantification of Site Layout and Filter Characteristics on Primary Filter Airflow Reduction on Commercial Swine Sites in Iowa." AgriEngineering 1, no. 2 (2019): 291-302. DOI: 10.3390/agriengineering1020022. Posted with permission.