Engineers Without Borders (EWB) Research Triangle Professional (RTP) Chapter: Chipozo Alta Verapaz Guatemala Water Supply Project http://ewb-usa.org http://rtpewb.com https://support.ewb-usa.org/waterforchipozo 06/03/2019 Bruce Binney President, EWB RTP [email protected]
14
Embed
Engineers Without Borders (EWB) Research Triangle ...rtpewb.com/wp-content/uploads/2011/03/EWB-RTP-Chipozo-Overview-Brief.pdf1 Pump subsystem 1.1 Spring flow capture 1.1.1 sluice design
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Engineers Without Borders (EWB)Research Triangle Professional (RTP) Chapter:
Chipozo Alta Verapaz GuatemalaWater Supply Project
170m elevation gain (- 1km conveyance pipe length)
Run pipe through culvert under road
Ultra filtration(if used)
~30’
Design notes:1. Pump tank and storage tank sizes need to support water usage patterns2. Assumption is that pump tank will be full in the morning (filled from spring overnight)3. Storage tank may not be full at the end of the day, so need to size pump tank and pump flow
rate to fill storage tank in the morning during concurrent morning usage4. Material of conveyance pipe at lower end may need to be different than upper end due to
increased pressure (so, maybe Schedule 80 or metal at bottom, and HDPE at the top).5. If spring is positive for coliform bacteria, then some method of sanitization will be required
(chemical or ultrafiltration etc)6. Water pressure at pump approximately 270psi
solar pumpcontrol system
Sanitization (if needed)
Gravity flow
Pressure switch
filterfilter
Control signal
Water levelCut off valve
Air chamber (for prevention ofWater hammer)
25’
Project Responsibility Matrix- a team effort of EWB RTP with the community!
WBS # Project Task Responsibility CommentDesign system EWB RTP
Appove system design community
Fundraising EWB RTP
Prepare for Implementation
Logistics of material purchasing NGO (CECEP)
Transport of materials to Chipozo NGO (CECEP)
Transport of materials to community sites Community
Prepare construction sites Community
Build Tanks and Piping
Build Pump tank and storage tank Mason (with help from community)
Dig trenches and assemble piping between tanks community With EWB RTP oversight
Install/configure Solar Power subsystem
solar panels
Build solar panel mounting structure EWB RTP, with help from community
Install solar panels EWB RTP
install power control unit and pump solar pump vendor
Build Pila Subsystem and water distribution
Connect water lines to storage tank EWB (with help from community)
Dig trenches and run water lines to pila locations community
construct concrete pilas and drain Mason (with help from community)