Natural ventilation in single airspace buildings

Abstract A method to control natural ventilation systems in agricultural buildings was developed and tested using computer simulations. First, an algorithm for calculating natural ventilation rates was derived. Then, using the algorithm, a computer program was developed to establish a control routine for opening or closing sidewall vents to achieve a target ventilation rate uniformly throughout the building. Using the computer program, simulations of a controlled, naturally ventilated dairy barn demonstrated the control model.