Abstract Rainwater retention tank systems are designed to capture rainwater from roof surfaces and store it as an effective water supply for later use. Such systems are known as RSD (Rainfall-Storage-Discharge) systems because they involve three processes: rainfall, storage, and discharge. Here we develop a design method for each process and use the water balance for the tank to estimate the control effect for a given volume of rainwater tank retention. We also develop an algorithm for calculating the nonlinear behavior of the stored water volume in the rainwater tank and the simulated flow variation of the tank. The simulated results are represented in the form of tank capacity-peak outflow curves. In the case that a storage tank of 10 m3 per 100-m2 area is installed for the roof surface of all buildings in a small area, the results show that the peak flow and total outflow are reduced by up to 20% and 18%, respectively. Thus, RSD systems are useful for controlling runoff from rooftops and effective in reducing the final discharge rate of an urban drainage system.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Design method for determining rainwater tank retention volumes to control runoff from building rooftops


    Contributors:

    Published in:

    Publication date :

    2014-10-03


    Size :

    6 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Design method for determining rainwater tank retention volumes to control runoff from building rooftops

    Kim, Youngjin / Kim, Tschungil / Park, Hyunju et al. | Online Contents | 2015


    Experimental Verification of Anisotropic Optical Turbulence on Building Rooftops

    Trinh, Phuc V. / Carrasco-Casado, Alberto / Suzuki, Kenji et al. | IEEE | 2019


    Lifting rig for moving heavy objects on rooftops

    BELANGER MARCO | European Patent Office | 2021

    Free access

    Automatic description of buildings with complex rooftops from multiple images

    ZuWhan Kim, / Huertas, A. / Nevatia, R. | IEEE | 2001


    LIFTING RIG FOR MOVING HEAVY OBJECTS ON ROOFTOPS

    BELANGER MARCO | European Patent Office | 2021

    Free access