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Rainwater harvesting: Sizing and modeling (view source)
Revision as of 01:09, 12 August 2017
, 6 years ago→Simple
Filter efficiency (e) can be reasonably estimated as 0.9 pending manufacturer’s information.<br>
Filter efficiency (e) can be reasonably estimated as 0.9 pending manufacturer’s information.<br>
In a study of three sites in Ontario, STEP found the annual C<sub>vol, A</sub> of the rooftops to be around 0.8 [http://www.sustainabletechnologies.ca/wp/home/urban-runoff-green-infrastructure/low-impact-development/rainwater-harvesting/performance-evaluation-of-rainwater-harvesting-systems-toronto-ontario/]. This figure includes losses to evaporation, snow being blown off the roof, and number of overflow events.<br>
In a study of three sites in Ontario, STEP found the annual C<sub>vol, A</sub> of the rooftops to be around 0.8 [http://www.sustainabletechnologies.ca/wp/home/urban-runoff-green-infrastructure/low-impact-development/rainwater-harvesting/performance-evaluation-of-rainwater-harvesting-systems-toronto-ontario/]. This figure includes losses to evaporation, snow being blown off the roof, and a number of overflow events.<br>
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<strong>Total storage = V<sub>S</sub> + Y<sub>0.05</sub></strong>
<strong>Total storage = V<sub>S</sub> + Y<sub>0.05</sub></strong>
===STEP Rainwater Harvesting Tool===
===STEP Rainwater Harvesting Tool===