a solar powered pump for water in rural haiti
TRANSCRIPT
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1 10/13/2014
A Solar-Pumped Domestic Water Supply for the
Mountains of Rural Haiti
Eric Sabelman*, Trudy Reagan, Rose Ashford, Elisee Abraham, Randy Mont-Reynaud
“If Pigs Could Fly – Helping Hillside Haiti”
Palo Alto, California USA
* Member IEEE-EMBS
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IPCF: A micro-NGO for a specific locale in Haiti
“If Pigs Could Fly – Helping
Hillside Haiti” established in 2001
Operates at “Mon Bouton” in
roadless Zoranje region above
Leogane (2010 quake epicenter)
Projects on children’s health &
education, income-producing
crafts & agriculture, lighting
On-site management by Elisee
“Thomas” Abraham, veterinarian
& community organizer
Family dwellings in Mon Bouton
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Need: Bring water closer to point of use
Water is carried by women &
children from 3 sources; largest
is “Ouache-ouache” (circled)
about 700 m downhill
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Solar water pump design criteria
• Provide kits of all parts not locally available
• Assemble with simple tools (provided)
• Solar panels positioned above vegetation & anchored against high wind
• Raise water in 2 stages for 460 ft (140 m) rise
• Length of pipe 1000 feet (300 m) or more
• Pump 400 gallons (1500 L) per day
• Use excess power for charging batteries
• Engage local “watermaster” to manage system
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Components & prototyping
Two kits, each containing:
• 180 watt BP solar panel
• 24VDC ShurFlo 9300 pump
• Pre-formed brackets for
panel support tripods
• Controller with level switch
• Electric cables and
connectors (pre-assembled)
• Hardware and tools
• Graphic instructions
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Timeline
• April, 2011 - Earth Day
demonstration, Sunnyvale CA
• July, 2012 - shipped two kits
• September, 2012 - released from
customs in Port au Prince
• August, 2013 - construction
began; stopped by rockslide
• December, 2013 - construction
resumed at new mid-level site
• January, 2014 - water delivery
< Power vs. pressure head
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Solar panel support tripod
• Brackets were cut, punched, pre-formed & labeled
• sample with U-bolts installed
• Bracket “F” allows seasonal tilt
• Bracket “A” detaches to lower tripod in hurricane wind
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Critical components: pump & panel
ShurFlo Model 9325-043-101
24VDC Submersible Pump for potable water
BP Solar BP SX170 170W Multicrystalline Solar Panel
Maximum power (Pmax) 170W
Voltage at Pmax (Vmp) 35.4V
Current at Pmax (Imp) 4.8A
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Kit assembly with in-country supplies
Purchased in Haiti :
1. 3/4 inch PVC water pipe, PVC glue & primer
2. water storage tanks, 300 gal
3. concrete & cement blocks for footings & reservoir
4. steel EMT conduit for lightning rod & solar panel tripods
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Transportation to Mon Bouton
• Airfreight to Port au Prince
• Truck to Leogane, then south to end of road
• Mule & human porters across river and up
Hardware kits (larger has toolbox)
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Source: reservoir at “Wach-wach”
Workers had experience
with block construction of
reservoir at Bain Neuf
Lower pumping trial before
tripod was finished
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Construction: lower tripod assembly
Assembling tripod brackets
with tools from kit
EMT tubing cut to size on site
(1 ½, 1, ¾ inch diameters)
Partly completed tripod on
concrete footings at initial
lower site above reservoir
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Laying pipe to mid-level site
Initial middle site had 80 ft (24 m)
rise from source; near footpath on
actively eroding slope
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First mid-level tank & panel site
Rockfall after overnight rain
damaged partly assembled
tripod & covered footing
After test of pumping to
initial top site, work was
stopped until a safe
middle site was found
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Second lower & mid-level pump sites
Lower pump, panel & tank
relocated to west
Mid-level pump, panel
& new tank at safe site
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Upper tank site water delivery
Storage tank – sign from
community meeting held
by Elisee Abraham
Spigot is gravity fed from
storage tank
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Map of water system
Nelis’ house
Mon Bouton
Source reservoir
Abandoned middle site
Gravity flow New lower site
New middle site
Upper site & spigot
Pumped flow
N
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Results to date
• 32 months from prototype to water delivery in Haiti
• Total cost about $8100 ($3000 in US for kits & shipping)
• Installation by 28 skilled (cement block construction) &
unskilled workers in 6 days
• Re-routing & re-assembly after rockslide cost $2100
• New route resulted in better upper site, closer to users
• Some features not installed (storm protection, charger)
• Measured delivery of 280-300 gallons (>1000 L) per day
• “Watermaster” Mesye Nelis oversees operation; has
repaired breaks in PVC pipe
• Kit components could be minimized by local metal
fabrication; kits can be easily replicated
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Height & distance measurement
19 10/13/2014
distance height
traverse sine angle ft m ft m
source to lower tank 0.042 -2.39 425.7 129.8 17.74 5.4
lower to mid tank 0.528 31.86 308.5 94.0 162.82 49.6
mid to upper tank 0.556 33.75 269.6 82.2 149.78 45.7
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Continued benefit
20 10/13/2014
Water for bathing, laundry, cooking
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Acknowledgements & resources
• Jonathan Bass & Solar City - solar panel donation
• Margaret Fruth - donation of tools
• Jean Ronel Noel & ENERSA - assistance with customs
& transport in Haiti
• Other donors – technical & financial contributions
For more information:
www.ifpigscouldflyhaiti.org
www.haitinextdoor.org (blog)
www.causes.com/causes/529435-if-pigs-could-fly-haiti
If Pigs Could Fly-Haiti
4250 El Camino Real, C126, Palo Alto CA 94306