Dynamic Thermal Modeling of Legionella Pneumophila Proliferation in Domestic Hot Water Systems

A simulation model is developed that allows to investigate the infection risk for Legionella Pneumophila in the design phase of a DHW system and to test the effectiveness of disinfection techniques on an infected system. With the thermodynamic model, the Legionella P. infection risk of the DHW recirculation loop in a case study building is assessed and important components for an optimization study on the trade-off between infection risk and energy efficiency are identified.