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== Basic Calculation == | == Basic Calculation == | ||
Collection = | <math> Collection\ (gal) = Rainfall\ (in) \times \frac{1 ft}{12 in}\times Collection\ Area\ (ft^2) \times \frac{7.48 gal}{ft^3} \times Roof\ Coefficient | ||
== Conclusion == | == Conclusion == |
Revision as of 20:00, 8 October 2012
The WaterPod will be collecting rainwater from a few of the impermeable roof areas. The calculations for collection are on this spreadsheet. There are three tabs feeding the results:
- Tab:Collection Calcs - Calculates the monthly availability of the rainwater.
- Tab:Collections Dimensions - Calculates the available rainwater collection area based upon the planned structures.
- Tab:Regional Climate Data - Show monthly rainfall from historical averages. Could be made more current.
Regional Climate Data
The historical 1971 - 2000 Rainfall Normals for Central Park, New York[1] are:
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
3.42 | 3.27 | 4.08 | 4.2 | 4.42 | 3.67 | 4.35 | 4.01 | 3.89 | 3.56 | 4.47 | 3.91 | 47.25 |
Basic Calculation
<math> Collection\ (gal) = Rainfall\ (in) \times \frac{1 ft}{12 in}\times Collection\ Area\ (ft^2) \times \frac{7.48 gal}{ft^3} \times Roof\ Coefficient
Conclusion
Wait until the spreadsheet is finalized before posting the final conclusions here.