 | Edward Crozier Sibbald Moore - Sanitary engineering - 1909 - 664 pages
...mathematical terms : — Let Q denote the discharge of storm-water in cubic feet per minute ; / denote the time of concentration in minutes (ie time of flow...of sewers in the district plus entrance allowance). Let r denote the total rainfall precipitation in inches during / (this can be obtained from curves... | |
 | Edward Crozier Sibbald Moore - Sanitary engineering - 1909 - 694 pages
...discharge of storm-water in cubic feet per minute ; / denote the time of concentration in minutes (/>. time of flow through the longest line of sewers in the district plus entrance allowance). Let r denote the total rainfall precipitation in inches during / (this can be obtained from curves... | |
 | Hugh Sextus Watson - Sanitary engineering - 1911 - 344 pages
...Lloyd-Davies proposed the formula: — Where Q = the discharge of storm water in cubic feet per minute. < = time of concentration in minutes (ie, time of flow...allowance). r — total rainfall in inches during t. A/i = percentage of impermeable area in acres comprised by the district. The time of concentration... | |
 | Hugh Sextus Watson - Sanitary engineering - 1911 - 344 pages
...discharge of storm water in cuhic feet per minute. f = timc of concentration in minutes (ie, time of How through the longest line of sewers in the district...allowance). r = total rainfall in inches during t. A/; = percentage of impermeable area in acres comprised by the district. The time of concentration... | |
 | F. Noel Taylor - Sewerage - 1912 - 380 pages
...approximation can only be aimed at, but if r = rainfall in inches during a certain period, t = the time of flow through the longest line of sewers in the district + the ii M 1 in 100. O 0 P< a •§ s pg o . 3— • 1* p ai •~.S «EJ ll i ilfl ^ > &. Is. gi.B... | |
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Q denote the discharge of storm-water in cubic feet per minute ; t ,, ,, time of concentration in minutes (ie, time of flow through the longest line of sewers in the district plus entrance allowance) ; r ,, ,, total rainfall in inches during t (this can... 