3) From a cistern tank a centrifugal pump (elevation=0m) delivers water to a site development with commercial and residential buildings. Two buildings are to be considered for the calculation of Total Dynamic Head, the information for each building are given below. Determine the most probable value of Total Dynamic Head in ft for the centrifugal pump considering that the negative suction head on the tank is 900mm. Building A Commercial Building B Residential Type of Occupancy Ground Elevation (m) 5 2 Highest point of distribution per Building 11 7.5 from ground level. (m) Supply pipe diameter for each building. (mm) 40 25 Water Demand (gpm) 30 20
3) From a cistern tank a centrifugal pump (elevation=0m) delivers water to a site development with commercial and residential buildings. Two buildings are to be considered for the calculation of Total Dynamic Head, the information for each building are given below. Determine the most probable value of Total Dynamic Head in ft for the centrifugal pump considering that the negative suction head on the tank is 900mm. Building A Commercial Building B Residential Type of Occupancy Ground Elevation (m) 5 2 Highest point of distribution per Building 11 7.5 from ground level. (m) Supply pipe diameter for each building. (mm) 40 25 Water Demand (gpm) 30 20
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:3) From a cistern tank a centrifugal pump (elevation=0m) delivers water to a site
development with commercial and residential buildings. Two buildings are to be
considered for the calculation of Total Dynamic Head, the information for each
building are given below. Determine the most probable value of Total Dynamic Head
in ft for the centrifugal pump considering that the negative suction head on the tank
is 900mm.
Building A
Commercial
Building B
Residential
Type of Occupancy
Ground Elevation (m)
Highest point of
5
2
11
7.5
40
25
distribution per Building
from ground level. (m)
Supply pipe diameter for
each building. (mm)
Water Demand (gpm)
Residual Pressure
Requirement. (psi)
Headloss (m)
30
20
20
18
1.5
5.5
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