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Evaluation of the CO2 mass balance method to calculate ventilation rates from mechanically ventilated livestock buildings

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2012 IX International Livestock Environment Symposium (ILES IX)  ILES12-0476.(doi:10.13031/2013.41630)
Authors:   Julio Mosquera Losada, Karin Groenestein, Nico Ogink, André Aarnink
Keywords:   Ventilation rate, CIGR, Model approach

To determine ventilation rates from mechanically ventilated livestock buildings fan-wheel anemometers have been extensively used. This method is reasonably accurate, but the cost of deploying this method is high, especially when a livestock building is provided with a large number of ventilation fans as may be the case in poultry livestock buildings. Here the CO2 mass balance method may provide a cost effective alternative. In this paper, the accuracy of this method for the determination of ventilation rates in mechanically ventilated livestock buildings in The Netherlands was evaluated with existing data from finished and on-going Dutch studies for pig and poultry categories. Fan-wheel anemometers were used as a reference method.

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