Poultry

Indirect Measurement of Building Ventilation Rate for Manurebelt Laying Hen House Using CO2 Balance

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Abstract

Direct measurement of building ventilation rate in livestock housing is a formidable task due to uncontrollable variations in fan and system performance. Estimating building ventilation rate based on a CO2 -balance offers a potentially viable alternative to direct measurement. Building ventilation rates obtained by direct measurement and by a CO2 balance were compared in this study for a commercial laying hen house with manure belts. The results indicate that ventilation rates estimated by the CO2 balance method were not significantly different (P>0.2) from those as determined by the direct measurement when the averaging or integration time interval was two hours or longer.= Careful application of the CO2 balance method will greatly improve the affordability and versatility of endeavors toward quantifying air emissions from confined animal housing.

Keywords: Agricultural and Biosystems Engineering

How to Cite:

Li, H., Xin, H. & Liang, Y., (2005) “Indirect Measurement of Building Ventilation Rate for Manurebelt Laying Hen House Using CO2 Balance”, Iowa State University Animal Industry Report 2(1). doi: https://doi.org/10.31274/ans_air-180814-1102