Thailand Water Supply System Project

Thailand Water Supply System Project By: Stephen Bonk (Team Leader) Kevin Dischino Joseph Moore Preliminary Site Assessment Village of Hantham: subset of Longkhot, Thailand Inadequate water supply during the dry season 159 Households and 453 People Average Water Usage: 200 L/day per Household Gathered Survey Data Collected Soil Sample Determined available resources

Survey Data Design Goals Supply entire village Sustainably powered pumping system Easily maintained and constructible Storage System Distribution System O & M Manual Extremely Economical Water Resources and Hydraulics Design Water Usage Average Annual Water Usage is 200 L/day per

Household Total Village Usage is 1,123 cf/day Total Tank Volume for 3 day supply = 3,369 cf Maximum Hourly Flow per Year is 270% of Average Flow per Year Maximum Hourly Flow per Year = 0.0351 cfs Minimum Storage Tank Elevation Must provide adequate water pressure for highest household in the village Is structure required to provide additional elevation? Minimum Storage Tank Elevation

Minimum Storage Tank Elevation Minimum Storage Tank Elevation Major Head Loss in Pipe A: 1 in Diameter Major Head Loss = 323.5 ft 2 in Diameter Major Head Loss = 11.7 ft 3 in Diameter Major Head Loss = 1.7 ft Minimum Diameter of Pipe A for Maximum

Velocity of 10 fps = 0.8 in 3 in Diameter Pipe Selected Minimum Storage Tank Elevation Using 3 in Diameter Pipe A Site 1 and Site 2 Inadequate Site 3 Adequate, No Tower Necessary Place Storage Tanks at Site 3, Ground Level Orange House Water Pressure will be 4 psi under Dynamic Conditions during Max Hour Flow

Pumping System Submersible Pump Pusher Pump System Energy Pumping System 1 in Pipe System Head Curve 800.00 700.00 600.00 Head (ft) 500.00 400.00 300.00 200.00 100.00

0.00 0.0 5.0 10.0 15.0 Flow (gpm) 20.0 25.0 Pump System Future Design Considerations

Manufacturer Specifications for Pumps Solar Panel System Power Requirements Tank Level Switch Water Distribution System Design Site View Process Split Section A into Pipe Branches Maximum Hourly Flow per Year:

2.207x10^-4 cfs for each household Determine flow through each Pipe Darcy Weisbach Equation Reynolds Number, /DD Use of WaterCAD Section A Schematic Pipe 7 = 275 ft. Pipe 6

250 ft. Pipe 3 200 ft. Pipe 2 320 ft. Pipe 5 350 ft.

Pipe 1 445 ft. Pipe 4 = 200 ft. Design of Pipe 1 Assume Maximum Velocity between 10-20ft/ s Find Minimum Diameter needed (A = Q/V) For Pipe 1 of 13Q:

Diameter = 0.16 0.23 For 0.25 Diameter Head Loss = 658 feet (Too Large) For 1 Diameter Head Loss = 0.98 feet For 2 Diameter Head Loss = 0.0242 feet WaterCAD Schematic Input / Output Total Head Loss Hand Calculations

1 Diameter 3.025 feet 2 Diameter 0.079 feet WaterCAD Results 2 Diameter 0.0665 ft. WaterCAD Output Pipe Start Node

Stop Node Diameter (in) Material P-1 T-1 J-1 3 PVC

P-2 J-1 J-2 4 PVC P-5 J-4 J-5 2

PVC P-6 J-2 J-6 2 PVC P-13 J-2 J-10

2 PVC P-15 J-10 J-11 0.75 PVC P-18 J-12

J-13 0.75 PVC P-19 J-10 J-17 2 PVC P-20

J-17 J-12 2 PVC P-21 J-17 J-18 0.75 PVC

P-23 J-19 J-3 2 PVC P-24 J-19 J-20 0.75

PVC Flow (cfs) 0.03509 1 0.00662 1 0.00022 1 0.00375 2 0.00286 9 0.00022 1 0.00022 1

0.00242 8 0.00198 6 0.00022 1 0.00110 4 0.00022 1 0.00154 Headloss Gradient (ft/ft) Length (ft) Headloss

(ft) 0.000867 1,903 1.649901 0.000008 853 0.006824 0.000004 200

0.0008 0.000083 200 0.0166 0.000052 150 0.0078 0.000198 25

0.00495 0.000198 100 0.0198 0.000046 30 0.00138 0.000036 85

0.00306 0.000198 80 0.01584 0.00002 25 0.0005 0.000202 25

0.00505 Geotechnical and Storage Tank Design Foundation Soil Profile =105 pcf = 30o c = 0 psf (Normally Consolidated Soil) Soil Classification USCS: Silty or Clayey Sand Minimum soil characteristics

= 80 pcf = 28o c = 0 psf Bearing capacity: Min=3855.9 psf, Estimated=13062.84 psf Factor of Safety: Estimated=16.09, Min=4.75 Percent Finer (%) Soil Properties Sieve Analysis 100.00% 90.00% 80.00% 70.00% 60.00%

50.00% 40.00% 30.00% 20.00% 10.00% 0.00% 0.6 0.42 0.25 Sieve Size (mm) 0.1 0.08 Foundation Spreadsheet

Water Tank Design Type Reinforced Concrete Rectangular Tank (25x25x6) Fiberglass or Reinforced Concrete Circular Tank ( Dia.=18) 12 thickness of wall and 8 slab. Formwork

Availability Reinforced Concrete only available, no fiberglass Cover: Reinforced Concrete or Sheet Metal Placement: Site 3 Construction Time Rectangular Cantilever Concrete Tank Height: 6 feet Depth of Embedment: 2 feet Top of Wall: 8 Concrete Heel and Toe slab use same reinforcement Water Stirrup (Rubber) Rectangular Cantilever Storage Tank

Gantt Chart Budget Questions ?

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