Implementation Trip for Micro Hydroelectric System

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Implementation Trip for Micro Hydroelectric
System

• Date of TAC Presentation TBD
• Project Tracking
• ID Number (See ARC Review) TBD
• Location Jarabacoa, Dominican Republic
• Risk Level (See ARC Review) TBD
• Chapter(s) Stevens Institute of Technology
  (EWB-SIT) with assistance from the Northern New
  Jersey Professional Chapter (NNJ Prof)
• Dates of Implementation Travel

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Objectives of Implementation Trip

• While the Stevens Chapter was involved in the
  design of the other system components, the main
  focus of the chapter was on design optimization
  and the selection of the turbine-generator unit.
  The intake, turbine-generator power house,
  control panel, electrical wiring and metering
  will be will be completed by local contractors
  and professionals with the oversite of Alberto
  Sanchez.
• Project mentor Alberto Sánchez is the local
  hydroelectric expert for the team. Sr. Sánchez
  is an Environmental Engineer with a Master of
  Science in the Management of Sustainable Natural
  Energies CATIE, 1994. As a project manager for
  the UNDP-United Nations for 10 years he has
  worked on and successfully completed more than 10
  central micro-hydroelectric systems implemented
  with a capacity of 1-50kW and more than 6,000
  photovoltaic systems in the Dominican Republic.
• Overall Project Objectives
• Provide an environmentally friendly and
  sustainable source of power for the community of
  El Dulce
• Educate the community technicians on operation
  and troubleshooting of the system
• Project Background
• The community of El Dulce in Jarabacoa,
  Dominican Republic consists of sixty-five homes
  and one school house. The local NGO, Obra Social
  Salesiana, has been working in the area for the
  past 40 years and has solicited the assistance of
  the chapter to provide electricity to the
  community that has been marginalized by the
  government, being that they are not main
  exporters of goods for the country. The Obra
  Social Salesiana hopes to further the development
  of the communities of Jarabacoa, in particular
  that of El Dulce, by bringing electricity to the
  area.

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Objectives of Implementation Trip

• The primary objectives of this trip are to
• Assist in the preliminary activities that are
  necessary to implement the turbine generator unit
  including the intake and power house
  construction.
• Begin the assessment for future project.

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Technical Description of Project

• The completed objectives of the assessment trip
  include
• Obtained the results of the feasibility study

• actual flow rate - 500 gallons per minute (0.03 m
  ³/s) to 1,200 gallons per minute (0.076 m ³/s)
• Note that the flow rate of the water source (El
  Nuez creek) is an extremely small percentage of
  the river that it feeds so there is no risk of
  over depleting the river.
• design flow rate - 950 gallons per minute
• intake site - 1,120 meters above sea level
• sand trap site - 1,120 meters above sea level
• powerhouse site - 1,000 meters above sea level
• head - 120 meters
• distance between sand trap and powerhouse - 765
  linear meters
• distance between sand trap and Forebay - 35
  linear meters

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Technical Description of Project
2. Finalized the site location
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Technical Description of Project
Filtered Intake Location
Power House Location
El Dulce
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Technical Description of Project
3. Observed existing hydroelectric systems and
reviewed design options
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Technical Description of Project
Intake/Filter System Overview The intake/filter
system begins with a diversion structure whose
purpose is to redirect the creek from its natural
path to a controlled path. The water then
travels through the approach channel and into the
sediment trap, where larger particles and debris
can settle out. Once the larger particles have
settled out and the velocity of the water has
been reduced by the sediment trap, the water will
then pass over a finer filter allowing for the
final filtering process. The finer particles and
water that is not captured by the filter will
then return back to the natural path of the
creek. The figure on the following slide shows
the overall intake layout.
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Technical Description of Project
Schematic overview of intake/filter system
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Technical Description of Project

• Diversion Structure
• The diversion structure consists of a triangular
  channel, excavated in the bottom of the riverbed
  and will be built out of reinforced concrete,
  being 40 cm thick and 5 m long. The figure on
  the following slide shows a cross section of the
  diversion structure. The structure will consist
  of the following components
• central spillway (also called the overflow)
  should be designed to allow the use of half of
  the superficial water source
• raised spillway which is designed to allow the
  maximum measured usage and to avoid erosion in
  the hillsides and foundations of the dam.
• For the raised spillway, a flow 50 times greater
  than the one measured was designed for. With
  this we guarantee that the flow passes through
  the structure and will not deteriorate and
  collapse with an overflow height of 40 cm.

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Technical Description of Project
Diversion Structure Cross Section
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Technical Description of Project
Approach Channel The diversion structure will
then transition into the approach channel. The
approach channel is a rectangular reinforced
concrete channel that is designed not only to
convey the water to the sediment trap but to also
provide some reduction in the velocity of the
water as it travels through the channel. The
base of the channel will be 18 inches wide and
will have elevated velocity reducers located
every 12 inches.
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Technical Description of Project
Sediment Trap The water flowing through the
approach channel will then enter the sediment
trap. In order to optimize the sedimentation
process, the sediment trap will be divided into
two basins in series. Each basin will be
equipped with a manual clean out device that will
allow for the sediment to be flushed out weekly.
The sediment trap will be constructed out of
reinforced concrete.
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Technical Description of Project
Filter The final stage of the system is the
filter structure. The filter is inclined at an
angle of 60 degrees, which allows only the water
to pass through it. Once the water passes
through the filter it then enters the beginning
of the penstock. Not all of the water will be
captured by the filter. This allows the
particles that settle at the bottom of the filter
to be flushed out by the water that is not
captured. The bypassing water and filtered out
particles are then diverted back to the natural
path of the creek.
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Technical Description of Project
Penstock/Pipeline From the filter to the
powerhouse will run 765 meters of 8" PVC CH40
pipes (the last 15 meters of pipe will be high
pressure metal). The type of pipe material was
based on the water pressure levels to be
withstood. This was calculated using Bernoullis
equation.
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Technical Description of Project
Powerhouse The power house will contain the
turbine generator unit and equipment control
panels. The building will be constructed out of
8 concrete masonry units with the dimensions of
6m x 6m x 2.8 m, representing length x width x
height. See the drawings below for more detail.
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Technical Description of Project
Tailrace The water being discharged from the
turbine will enter the tailrace and be conveyed
back to the river through a 1m x 1m concrete
channel.
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Technical Description of Project
Turbine/Generator Selection With a gross head of
120 meters and a design flow of 950 gpm (60
liters per second), developed by approximately
800 meters of 8 inch penstock, the calculated
effective head is 109 meters. Using this data the
expected system production will be 40 KW at the
generator leads Turbine Canyon Hydro model
1315-2 Pelton turbine, 13 inch pitch diameter,
with double nozzle. The runner is single piece,
cast in stainless steel, ground, polished, and
balanced. Housing is fabricated plate steel with
labyrinth seal assemblies, flange mounted double
row spherical roller bearings, bore aligned fixed
interchangeable nozzle assemblies, over speed jet
deflectors and integral turbine/generator mount
frame. Generator Marathon Electric model
441SDL0111, 42 KW, 240/120 VAC, single phase,
1200 RPM, brushless, 60 cycle, synchronous
industrial generator. Including complete direct
drive assembly and drive guard. Governor and
Controls Thomson and Howe Product A2
electronic load control governor for constant,
oscillation free, 240/120 VAC, 60Hz current. With
(7) 30 amp relays for complete ballast load
coverage using an integral ballast load tank
mounted at the lower turbine intake. Over/under
frequency guard protection is included, utilizing
an electromagnet and product E to monitor
frequency. Added Optional Equipment Upper
manually operated needle nozzle to accommodate
high flow rate variability.
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Technical Description of Project
Construction Timeline
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Community Ownership Education

• What kind of help will the community be
  providing?
• The community will be providing the manual labor
  during the construction phase. They will
  undertake the construction of the intake, filter,
  will lay the piping for the penstock as well as
  construct the turbine shed.
• The OSS will coordinate with the Associacion de
  San Jose to determine the roles within the
  community for each phase of construction. This
  information will then be confirmed by EWB-SIT.
• Who will own the project once its completed?
• The project will be owned entirely by the
  community of El Dulce, specifically the
  Association de San Jose.

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Community Ownership Education

• Who will be overseeing maintenance once the team
  leaves and how will repairs be paid for?
• The Associacion de San Jose will appoint a member
  of the community to maintain the system,
  including daily checks of the intake, filter and
  turbine system. This member will then report to
  the association and the OSS. If at any point the
  OSS feels there is negligence on the part of the
  community, they will take over maintenance and
  retrain the community. Any repairs will be paid
  for by the community, as a fee structure has
  already been established by the association and
  agreed to by the community for this purpose.
• What education will be provided to the community?
• Education will be a large part of this project as
  much of the equipment and system concepts are
  foreign to both the OSS and the community
  members. The OSS and select members of the
  communities (who will serve not only as
  representatives, but caretakers of the system)
  will be trained on how the design works and how
  to troubleshoot the system. Alberto Sanchez has
  installed similar systems in neighboring
  communities and will assist in the education.

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Implementation Metrics

• Technical
• Give a detailed description of the future
  monitoring of the impacts of your project
• An electronic control unit built into the
  turbine-generator system will monitor the power
  input and electrical output and ensure proper
  functionality. As part of the maintenance plan
  various aspects of the system such as pressure
  and flow rate will be monitored by members of the
  local community.
• How will environmental impacts be monitored?
• The OSS will closely monitor the creek and
  surrounding land as well as the water levels of
  the river that El Nuez Creek feeds into.
• What are the future plans for visiting and
  following up with any problems that might arise?
• The chapter plans to remain working in the area
  for at least the next 5 years, and during each of
  the assessment/implementation trips they will
  check up on system. Moreover the OSS will keep
  the chapter updated on the status of the system.

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Implementation Metrics (cont)

• Health
• No potential health risks from the implementation
  of the hydroelectric project are foreseen.
• Economics (If your project has an economic
  impact)
• The project will not have a direct economic
  impact. However, the introduction of electricity
  into the community could produce new economic
  opportunities. The EWB-SIT chapter will maintain
  contact with the community after the project
  completion to monitor the impact.

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Community Involvement

• How has the community been involved in this
  project?
• The team will continue to be in contact with the
  community via the NGO project facilitator. The
  community approached the OSS with the need and
  therefore they will serve as the liaison between
  the team and the community. The community has
  been involved in planning stages thus far all
  facets of the project have been explained to the
  community for concerns and input and will be
  through implementation.
• Was a second, follow-up assessment conducted once
  the initial designs were completed?
• The assessment trip conducted in March 2007 by
  the chapter was used to confirm data and analyze
  the theoretical system design created as part of
  a senior design project
• The President of the Associacion San Jose was
  chosen by the community to review the designs
  under the advice of the OSS and lead engineer
  Alberto Sanchez.
• How many people will this project impact?
• Directly 65 homes (approximately 350 members)
• Has the NGO been helpful?
• The NGO, OSS has been instrumental and very
  helpful thus far in the process.

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Assessment for Future Project Phases

• Will this trip be used as a site assessment for
  future projects? Yes/No
• YES
• What are the communitys main concerns?
• A neighboring community in Jarabacoa has
  expressed a need for a new clinic and community
  center.
• Site Assessment Data Needs
• For either the clinic or community center, the
  following data would be necessary
• Current and projected use of facilities by
  community
• Deeds for current and/or projected property for
  facilities
• Survey of facility site
• Specific need of space in order to design
  accordingly
• From where do you plan to obtain this data?
• From community interviews and help from the OSS.
• What instrumentation or system of monitoring will
  be used to evaluate the sustainability of the
  project?
• The community would report the use of the
  facilities to the OSS who would then communicate
  that information back to the chapter.

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Assessment for Future Project Phases Methodology

• Describe the potential impacts to the physical
  environment that the project may cause
• No environmental impacts are expected.
• Describe what training your team has
  undergone/will undergo for this project
• The group met the community members and examined
  the location during a Stevens research trip to
  the area in May of 2006 and an assessment trip in
  March 2007. One of the Stevens team members
  working on the project is fluent in Spanish and
  three other members know enough of the language
  to get around. The team has become familiar with
  the culture and customs of the area including
  local building methods.

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Assessment for Future Project Phases Metrics

• Technical
• What metrics will be used to determine the
  technical success of this project?
• The current and projected use of the facilities
  will be necessary for the design of the
  facilities and therefore the success of the
  project .
• Economic (If your project has an economic
  impact)
• No foreseeable economic impacts.
• Health (If your project has a health impact)
• If a clinic is chosen as the potential project,
  it will increase the size of the facility and
  therefore allow for more patients to be admitted
  and cared for.

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Assessment for Future Project Phases Community

• Do you have a plan for interacting/interviewing
  the community?
• The chapter plans on interviewing the community
  members by means of a survey as well as speaking
  with the community leaders in order to determine
  which facility is more important to the
  community.
• How will the community participate in planning?
• What are your future plans for involving the
  community in the decisions for this project?
• The community will be involved in the planning
  stages of the facilities by way of their needs
  and furthermore by reviewing the building plans.
  They will also be involved in the construction.
• Who will continue to correspond with after you
  leave?
• The NGO will continue to correspond and forward
  any needs from the community and vice versa.
• Are you planning on a follow-up assessment once
  the initial designs have been completed?
• A follow-up assessment will be conducted once
  preliminary designs are completed.
• What are the tentative future plans for visiting
  the community again?
• The chapter plans to visit the community once a
  year to check on past projects and continue the
  relationship with the community.

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Equipment

• What equipment will be brought to the country for
  this project?
• The team will be shipping the turbine system
  into the country. Other than that all materials
  will be purchased locally.
• The UNDP-PPS has made the arrangements for
  picking up the turbine unit and transporting it
  through customs as they have done for projects in
  the past. They assure us they will not have any
  issues with shipping and receiving the equipment.

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Living Arrangements

• Transportation Provide a short point to point
  list with dates transportation
• Newark, NJ to Santiago, Dominican Republic
• 06/11/08 airplane
• Santiago, DR to Jarabacoa, DR
• 06/11/08 van provided by the OSS
• Jarabacoa, DR to Santiago, DR
• 06/15/08 van provided by the OSS
• Santiago, DR to Newark, NJ
• 06/15/08 airplane
• Where will the team be staying?
• The team will be staying in the Salesian Retreat
  Center, 2 kilometers from the OSS main site. This
  facility is closed by gate at night to ensure
  security
• List Contact Information/dates
• Name of Requesting Organization Obra Social
  Salesiana
• Name of Individual Requesting Assistance Sr.
  Olmedo Valdez
• Contact Email dbobra.social_at_verizon.net.do
• Contact Phone [phone]
• Contact Address Calle Gaston F. Deligne No. 47
  A, Colonia Agricola, Jarabacoa,

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Safety Emergency Plan

• Safety Plan
• Our group will always travel together and with a
  guide from the NGO. If any member becomes
  separated from the group we will meet at the
  Salesian Retreat Center
• Emergency Plan Exit Strategy
• In the event of a medical emergencies, weather
  issue or political unrest if possible the group
  will be driven by a member of the OSS to the
  Santiago airport only half an hour away and
  depart on the earliest flight back to the US. If
  travel is not possible the group will remain
  safely within the gated and protected Salesian
  Retreat Center and contact the US Consulate.
• Are there any State Department Warnings for this
  country?
• There are currently no State Department Warnings
  for the Dominican Republic. The Peace Corp is
  actively working in the area of our travel.
• Are there any other safety concerns for
  traveling at this time?
• No

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Project Contact Information

• Project Team (Verify that each person is a
  member of EWB-USA)
• Number of Students working on project 10
• Number of Professionals working on project 3
• List Project Team Members Eileen Parra, Natalia
  Malantchouk, Roman Malantchouck, Salme Cook, Abel
  Alvarez, Chloe Weck, David Velasco, Greg Maietta,
  Nick Strand, Katie Weatherall, Alberto Sanchez,
  Siva Thangam, Leslie Brunell.

Note All University trips must have a faculty
advisor or mentor with the appropriate technical
background accompanying the assessment trip.
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Project Team Overseas Contact

• List Chapter Traveling EWB-SIT
• On-the ground Contact Phone for the travel
  team
• 1-809-574-2822/6866
• Nearest US Consulate Contact info
• There is a Consular Agency in the north coast
  city of Puerto Plata (approximately 1 hour from
  Jarabacoa) at Calle Villanueva esq. Avenida John
  F. Kennedy, Edificio Abraxa Libraria, 2nd floor
• telephone [phone],
  809-586-8023
• Nearest Hospital Contact Info
• The US Dept of State recommends using ProMed, a
  private ambulance service to transport to the
  nearest hospital or medical center. There is one
  that operates out of Santiago, only a half hour
  from Jarabacoa.
• Travel Team
• Number of Students Traveling 6
• Number of Professionals Traveling We will be
  meeting Alberto Sánchez in Jarabacoa

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Travel Team

• List the Travel Team Names
• List out each person who is traveling or
  potentially might travel.
• Waivers and overseas medical insurance sign off
  sheet MUST be submitted for each person listed
  WITH this presentation.
• See document 605.
• Each person MUST be a member of EWB-USA to travel.

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Budget Hours

• Budget Give a broad breakdown
• Who is assigned to oversee budgeting?
• Eileen Parra
• Hours on the project
• Weeks worked on this phase of the project
  (since last trip)
  30
• Estimated total hours working on trip 245
• Total Hours for this phase of project 1670

Covered by Stevens Grant
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Donors Funding

• List sources of funds and in-kind contributions
• Economic help will come from various sources.
  The Obra Social Salesiana has finalized contracts
  with the following United Nations Development
  Programme - Programa de Pequenos Subsidios
  (UNDP-PPS) and PROCARYN for funding. The
  chapter at Stevens is fundraising to cover
  remaining project costs by presenting to Alumni,
  corporations, and individuals. All student
  travel expenses will be covered by a Stevens
  grant.
• Did your team meet its funding goals?
• Total Gifts To Date  22,756.68
• Goal is 25,000 toward the turbine-generator
  unit.
• We have currently raised 91 of our goal.

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Final Checklists before Travel

• The goal of the review process is to make sure
  that your team has a successful assessment trip
• 1) Submit this presentation to the project
  management staff and TAC liaison at
  projects_at_ewb-usa.org WITH THE FOLLOWING (the
  project will not be reviewed without these
  materials)
• Volunteer Waiver Form for each person traveling
  (including mentors) Travel Insurance (605)
• Note THESE MUST BE SIGNED. TYPED SIGNATURES
  WILL NOT BE ACCEPTED. Forms can either be
  scanned and e-mailed, faxed or sent via mail.
• To avoid confusion, please submit all of the
  above materials for everyone at one time.
• 2) Prior to the TAC meeting The Project
  Management Staff and the liaison will review this
  presentation with the project lead, mentor and
  other relevant team members via a conference call
  prior to its presentation at the TAC meeting.
• 3) Before final travel, your team should have the
  following checklists signed off by the persons
  listed below, and get a final OK from the EWB-USA
  Project Staff
• Travel Readiness Checklist (601) to project
  staff
• Personal Health Checklist (603) to teams
  health point person (to be taken on the trip)
• Detailed Field Equipment Checklist to mentor or
  project lead
• Proved this presentation emergency contact
  information to each and every member of the team
• Have each person review the Travel Tips
  Presentation (602)
• 4) The Project team will be responsible for
  following up on TAC Comments and submitting
  changes/revisions to the project staff

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Faculty Advisor Sign-Off

• I, Dean Ken Nilsen, as the faculty advisor of
  this project, have reviewed the technical and
  logistical contents of this project, and approve
  of the proposed design. I will also comply with
  TAC recommended changes and make suggested
  changes before traveling on the implementation
  trip.
• I have also read through the submission
  requirements on the previous slide, we understand
  the next steps in the process and will submit all
  required documents by the submission date.
• (Note for student chapters, either the
  mentor or the faculty advisor must sign this
  form. An electronic signature is sufficient, but
  typing in a name is Not acceptable.)
• Signed ______________________