Probabilistic Modeling of Rainwater Tanks

Abstract

The use of rainwater tanks is always more encouraged, to achieve a dual objective: water saving from water distribution systems and reduction of runoff discharged into drainage systems. In last decades, different approaches have been proposed for their modeling, most of which are empirical or based on continuous mass balance simulations. To combine the simplicity of practical approaches and the accuracy of continuous simulations some authors have proposed the use of probabilistic approaches; their applications, in literature, still have some limitations. This paper seeks to improve the modelling of rainwater tanks by mean of an analytical probabilistic approach.