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Rainwater harvesting: Sizing and modeling
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Revision as of 20:36, 26 June 2017
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<p>The following calculation is based upon two criteria:
<p>The following calculation is based upon two criteria:
<ol><li>A design rainfall depth is to be captured entirely by the RWH system.</li>
<ol><li>A design rainfall depth is to be captured entirely by the RWH system.</li>
<li>The average annual demand (D
<sub>0.05</sub>
) is greater than the average annual yield (Y
<sub>0.05</sub>
)
coming
from the catchment. </li></ol></p>
<li>The average annual demand (D) is greater than the average annual yield (Y) from the catchment. </li></ol></p>
<p><strong>When Y<sub>0.05</sub>/ D<sub>0.05</sub> <0.33</strong> <br>
<p><strong>When Y<sub>0.05</sub>/ D<sub>0.05</sub> <0.33</strong> <br>
The total storage volume required (V<sub>S</sub>, in L) is calculated as the product of:
The total storage volume required (V<sub>S</sub>, in L) is calculated as the product of:
Jenny Hill
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