Case for Cambodia

Team 6

Case for Cambodia

Eric Immerfall

Elizabeth Smit

Jordan Johnston

Lisa Andela

Aaron Goodman

Design NormsMaster Plan LayoutDesignsBudgetImplementationChallengesLessons Learned Questions

Presentation Outline

Cultural Appropriateness: Through the design, materials, and

construction methods of the common Cambodian.

Transparency: Communication about the simplicity and

reliability of the design.Integrity:

Design will facilitate relationships between people and their land.

Design Norms

Design Norms - Layout - Designs - Budget - Implementation - Challenges - Questions

Master Plan Layout

• Well• Solar Pump

• Fish Ponds• Drip

Irrigation

• Common Building

• Sanitary Facilities •

Bridge


Common BuildingPurpose:

Meeting spaceHousing for ~30 peopleEating/cooking space

Design RequirementsBuilt in the Cambodian

architectural styleUse local easily

obtained materialsLow costLong design life

Examples of similar existing structures


Layout

2nd Floor- 11 dorm rooms

Tile roofSteel FrameConcrete block Wood/Stucco

1st Floor-Classroom,Kitchen, 3 full bathroomsopen space


Roof DesignClay Tiles

Local tiles used Size no smaller than 0.369m

longSteel Framing

Steel angles 3”x3” spaced at 0.369m O.C.

Support Beams W8x10 Spaced at 3m O.C

Support Truss WT4x5 used as outer shape L30305 is used as bracing


Second Floor Design2nd Floor Columns

W8x24 in center at end of building

W10x12 at each corner of building

Steel beam design W8x10- Floor framing

over 3m spans (also along stairway)

W10x12- Girder spanning 4 or 5 m

W12x19- Girder spanning 6m to allow large open space


First Floor DesignFirst Floor Includes:

KitchenEnclosed in concrete

block (along with classroom and restrooms

ClassroomLarge space for

classes, meetings, worship, etc.

Potential for computer lab

Restroom facilitiesEach include toilet,

sink, and shower

Storage room Battery bank storage

StairwayWrap design

FoundationsWall foundations and

column footingsShort perimeter wall

Keeps rain outDesign Norms - Layout - Designs - Budget - Implementation -

Challenges - Questions

Sanitary FacilityMethod Selection

Provide Increased SanitationAlternativesWaste Removal

Current Method is IneffectiveNew Method:

SafeEffectiveEfficientProven

Provide a Better FutureDesign Norms - Layout - Designs - Budget - Implementation -


Sanitary FacilitySystem Plan

Three BathroomsSink, Toilet, and Shower in Each

Water Demand: 1692 Liters per DaySeptic System for Waste Removal

2 Septic Tanks in Series1st Tank: 1500 gallons with Baffle2nd Tank: 1500 gallons

Drain FieldApproximately 950 sq ft in size


Sanitary FacilityWater Demand Assumptions

Maximum population in dorms = 30 people15 Showers per day at 1.5 gallons per

minute3 Toilet uses per person per day at 2 gallons

per flush90 Bathroom uses per day at 0.3 gallons per

hand wash15 gallons used per day for Kitchen sink use

Total Daily Water Demand = 1692 Liters per DayDesign Norms - Layout - Designs - Budget - Implementation -


Sanitary FacilityBathroom Layout


Sanitary FacilityBathroom Specifications

A standard toilet, sink, and shower head will be used

Standard piping with two outflows from three bathrooms

Outflow will connect with the kitchen waste en route to the septic tanks

Standard spacing for the shower at 0.8 meters wide and 1.4 meters long

Toilet and Sink will fit any standard model


Sanitary FacilitySeptic System Design Specs

2 Septic Tanks in SeriesExtra StorageSludge Movement PreventionSchedule 40 PipingMinimum Slope is 0.25 in per 1 foot

950 sq foot drainage fieldLevelPerforated 4” PipingBaffle System


Sanitary FacilityWaste Removal (Plane View)


Sanitary FacilityWaste Removal (Bird’s Eye)


Sanitary FacilityDrainage Field

Depth Varies on Soil TypeLevel of Drain Field

6 inches of supporting bed of stone washed gravel

4 inch thin walled perforated piping2 inches of covering stone washed gravel bedBack filled to whatever distance required

Sloped Cover


Sanitary FacilityDrain Field (Plane View)


Sanitary FacilityDrain Field (Bird’s Eye)


Bridge Design – Stream Modeling Modeled stream in

HEC-RAS and HY – 83 Different Models

were made in HEC-RAS

The first model made was the stream as it is now


Bride Design – Stream Modeling


Bridge Design - CulvertsThe second model was

made with the dam being assumed as part of the ground and with the sides of the stream being excavated to provide room for the structure

From there culverts were inserted to find out how many were needed to convey the worst case flow.Design Norms - Layout - Designs - Budget - Implementation -


Bridge Design - Culverts


Bridge Design - CulvertsThe third model

was made to with the dam being assumed as part of the ground but this time the culverts were put at a downward slope.


Bridge Design – Dam SectionThe Dam that was

chosen is an Earthen Dam.

The Dam was decided to be 1m tall and 10.5m wide with a length of 10m at the base


Bridge Design - There are four

different protection measures that must be implemented

Side Bank Underflow Bridge/Dam Frontal Seepage Rock Toe


Bridge Design - RoadwayThe Roadway over

the bridge can be one of two designs

Concrete (proposed)

Gravel (alternative)


Bridge Design – Final Design


Bridge Design - InstallationExcavation should

start at the beginning of the dry season

Materials should be brought in during excavation

Dam must be built carefully


Renewable Energy SourceSizing of the components based on 6kWh

demandSystem Autonomy 3 daysAverage solar irradiation 4.96 kWh/m²/d

o Require 12 Sharp 175 w PanelsBattery Bank 12 x 2 volt batteries in series

o Require Total Capacity of 1500 AhInverter sized with all appliances running

o Continuous output power should be approximately 1600 W at 25°C

http://cambodia.picosol.nl


Renewable Energy Source – System Configuration


Renewable Energy Source – Solar Pumps

Two types of solar pump systemsMain pump-Lorentz PS600 HR/C

o Meets daily flow demands and provides 30 m lift

Fish Pond Pumping System-Lorentz PS600 BADUo Low head levels with high volume capacity

www.lorentz.de/PS600 BADU PS 600 HR/C


Renewable Energy Source – Design CostsPrice Per kWh: $1.07

Part Price Quantity Total Cost Life Time AnnuityCommon Building System Solar Panel -Sharp 175 W $600 12 $7,200 20 $628Battery $400 12 $4,800 4 $1,385Charge Controller $350 3 $1,050 10 $132Inverter $2,000 1 $2,000 10 $272Various $100 1 $100 10 $14Total $3,450 $15,150 $2,430 Solar Pump System Solar Panel -Sharp 175 W $600 3 $1,800 20 $157Lorentz PS600 BADU $1,300 1 $1,300 5 $309Total $1,900 $3,100 $4662 Systems (same price for both pumps) $6,200 $931 Grand Total $21,350 $3,361

Annuity Based on a 6% growth rate and end of year payments


Water Distribution & Irrigation

Water Needs from Well:Existing Common Building: 564L/dayNew Common Building: 1629L/daySoursop Tree: ~8L/day

Water distribution system modeled in EPANET to confirm that 3000L tank will supply water demandsUsing Lorentz PS600 to refill tank throughout the

day

Existing Piping

New Piping

Rows of Soursop Trees

Well, Pump, & Tank

Fishponds & Garden

Rice Plots


IDEal Drip Irrigation SystemsIDEal Drip Kits

International Development Enterprises A local non-

profitOffer all sized

drip irrigation kits (20m2-1000m2)

Pump:Lorentz

PS600BADU to pump water from fishponds to tank

Drip Irrigation System Layout forGardenResearch plots

http://www.ideorg.org/OurTechnologies/IDEal_Drip_Technical_Manual.pdf


Budget

Budget for the Master PlanWater Distribution System $2,072.00

Sanitary Facility $3,910.00

Common Building $21,512.00

Bridge $2,073.00

Renewable Energy Source $21,275.00

Grand Total $50,842.00

Projected costs were based onCost of materials

Cambodian price if known, otherwise price in the US

Does not include cost of labor


Implementation

Solar Pump• Located

by the well

Drip Irrigation•Garden•Soursop Trees

Bridge• Access to ESA

Site

Common Building• Sanitary

Facilities


Obstacles Have OvercomeAssumptions about site dataFinding local vendors and prices for system

componentsDifferent design codes and styles between

countriesCulturally appropriate design choices

Challenges in Design


Keep units straight -metricDocument everythingThings change- be able to adaptWe don’t know everything-make assumptionsGetting started is half the battle- where to

startLearned a lot about different aspects of site

developmentCommunication is key between group

members

Lessons Learned


Questions?

Further questions…email us!…[email protected]

Special Thanks To: Prof DeRooy-Team Advisor Prof Dornbos-Biology Prof Rachel Koopman-Interim Data

Coordinator Interim Group

Roger Lamer-Industrial Consultant Navy Chann-Chhay & Li Chhay-Client

Founders of Eden School of Agriculture

CEAC


Documents

Case for Cambodia