Simulation of air quality and cost to ventilate swine farrowing facilities in winter.

ABSTRACT: We developed a simulation model to study the effect of ventilation airflow rate with and without filtered recirculation on airborne contaminant concentrations (dust, NH₃, CO, and CO₂) for swine farrowing facilities. Energy and mass balance equations were used to simulate the indoor air quality and operational cost for a variety of ventilation conditions over a 3-month winter period, using time-varied outdoor temperature. The sensitivity of input and output parameters on indoor air quality and operational cost were evaluated. Significant factors affecting model output included mean winter temperature, generation rate of contaminants, pit-air-exchange ratio, and recirculation ratio. As mean outdoor temperature was decreased from -2.5 °C to -12.5 °C, total operational co

SUBMITTER: Park JH 

PROVIDER: S-EPMC4770838 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature