Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Rainwater harvesting automatic system
Submission Author:
Diego Araújo Lemos , RN , Brazil
Co-Authors:
Diego Araújo Lemos, Márcio Araújo, Arthur Pordeus
Presenter: Márcio Araújo
doi://10.26678/ABCM.COBEM2017.COB17-1530
Abstract
The rainwater harvesting is known as an alternative water supply to reduce the drinkable water used in gardens, toilets and floor cleaning, can be done in an easy way, in different social levels and in any locations with a roof catchment area, but to do so, is necessary to discard the first millimeters of rain to perform the roof cleaning which could contain debris, animal faeces and leafs. That said, an electronic pluviometer capable of measuring the amount of rain to be discarded has been developed, as well as a flow separator device. This device receives an electric signal from the pluviometer, through a micro controller, and depending of the amount of rain, the water flow is diverted to the discard pipe or to the tank pipe. Validation tests on the pluviometer and flow rate of the flow separator were performed to determine the device’s usage band and viability. Besides that, methods to calculate the capacity of the tank are presented to help dimensioning the system accessories. The results of cost and level of system controlling on the process were good, showing the devices viability, as a low cost commercial product to be used in rainwater harvesting systems.
Keywords
rainwater harvesting, automation, discard system, first flush
