Track: Energy
Abstract
Hand hygiene has been shown to prevent respiratory illness COVID-19 and is recommended after coughing and sneezing and/or on entering the home having come from outside. Functioning handwashing facilities with water and soap are recommended to be available within 5m of all toilets, both public and private. This paper proposes a design of a piped water scheme for an identified rural center to increase sustained access to safe water as a primer solution to the fight against COVID-19. For the identified borehole, the safe pumping yield is taken as 80 % of the capacity test and is given as 1.2m3/h. A special user-defined excel simulation program was developed and employed that specified a 1.7kW motor pump, powered by a 1000 Wp solar array delivering a peak flow rate of 1.2m3/hr (12m3 of daily water yield) for the least insolation day at a TDH of 63m with overall pumping efficiency of 11l/Wp. The Hazen-Williams method was used to specify a 32mm Class 6 HDPE pipe that stretches for 530m as the pumping main. The mass balance curve gave a minimum balancing water storage of 30m3 on considering the risk of water quality deterioration given the absence of a disinfection regime.