QUESTION 6 5 points Save a (a) There is a is a tiled roof on a residential house in Sydney, where 70 m² roof is draining

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Question 6 5 Points Save A A There Is A Is A Tiled Roof On A Residential House In Sydney Where 70 M Roof Is Draining 1 (18.61 KiB) Viewed 25 times

QUESTION 6 5 points Save a (a) There is a is a tiled roof on a residential house in Sydney, where 70 m² roof is draining to a single downpipe where the householder would like to capture and store the roof water in a rainwater tank nearby. Estimate the quantity of available rainwater per year. (Assume annual rainfall in Sydney region 1164 mm/year, runoff coefficient as 0.9 for metal or tiled roofs) (1 mark) (b) Using the given data and information for an area in NSW, estimate the following per year: (4 marks) Quantity of available runoff water (excluding roof water which is collected by rainwater system); • Water demand by the residents of the area: • Quantity of water collected from roots • Water shortage . Quantity of imported water Assume the stormwater generated is used for supplying the water to the domestic consumers. Given data For Scotland Island (nearest rainfall station is located at Palm Beach Coasters Retreat) . Rainfall 1180 mm/yr • Area - 50 ha No. of residensal houses 328 Roof area 35 m² Runoff coefficient = 0.14 • Average water demand = 2501personvday • Average size of the HH-3.11 person Rainwater roof collection efficiency=0.75