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Rainwater harvesting: Sizing and modeling
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Revision as of 21:08, 11 August 2017
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===Simple===
===Simple===
<blockquote>
<blockquote>
{{plainlist|
*Five percent of the average annual yield can be estimated:
*Five percent of the average annual yield can be estimated:
*<strong>Y<sub>0.05</sub>= A × C<sub>vol, A</sub> × R<sub>a</sub> × e × 0.05</strong>
*<strong>Y<sub>0.05</sub>= A × C<sub>vol, A</sub> × R<sub>a</sub> × e × 0.05</strong>
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*C<sub>vol, A</sub> = The annual runoff coefficient for the catchment
*C<sub>vol, A</sub> = The annual runoff coefficient for the catchment
*R<sub>a</sub> = The average annual rainfall depth (mm)
*R<sub>a</sub> = The average annual rainfall depth (mm)
*e = The efficiency of the pre-storage filter</blockquote>
*e = The efficiency of the pre-storage filter
}}
</blockquote>
Filter efficiency (e) can be reasonably estimated as 0.9 pending manufacturer’s information.
Filter efficiency (e) can be reasonably estimated as 0.9 pending manufacturer’s information.
Jenny Hill
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