CADD IIICADD III

G enerating G enerating

R enewable R enewable

E nergy E nergy

E fficiently E fficiently

N ow N ow

G.R.E.E.N. Project Itinerary

HistoryHistory

•Started May ’08 and continued through summerStarted May ’08 and continued through summer•Class entered the Lemelson MIT Inventeams Class entered the Lemelson MIT Inventeams

competition, we were eliminated in the second roundcompetition, we were eliminated in the second round•We decided to pursue the project even with the loss We decided to pursue the project even with the loss

of fundingof funding•We have prepared many prototypes to implement We have prepared many prototypes to implement into the system, testing them in conjunction with the into the system, testing them in conjunction with the

physics classphysics class•At this time we are ready to create a “real life” full At this time we are ready to create a “real life” full

scale modelscale model

General PurposeGeneral Purpose

The purpose of this system is to capture The purpose of this system is to capture otherwise wasted energy leaving the otherwise wasted energy leaving the house in the form of water from the house in the form of water from the toilets, sinks, and showers.toilets, sinks, and showers.

This water will create energy and be This water will create energy and be used in the house instead of energy from used in the house instead of energy from a grid.a grid.

The water is filtered using a specialized The water is filtered using a specialized separator system separator system

The water is stored in a large storage The water is stored in a large storage tank before being used in the system.tank before being used in the system.

After the filter process, the clean water After the filter process, the clean water will be ran through a generator creating will be ran through a generator creating electricity that will supplement electricity electricity that will supplement electricity in the house. in the house.

General Purpose Cont’d

InfrastructureInfrastructureIn order of use

1. 1. Holding tankHolding tank - Represents all “brown water” - Represents all “brown water” from house.from house.

2. 2. FilterFilter - separates - separates solids and liquidssolids and liquids3. 3. Siphon holding tankSiphon holding tank - - uses siphon to create uses siphon to create maximum powermaximum power4. 4. GeneratorGenerator - - Uses falling water to produce energyUses falling water to produce energy5. 5. Recirculation tankRecirculation tank - used only for display - used only for display

1.

2.

3.

4.

5.

InfrastructureInfrastructure

The infrastructure provides a supportive The infrastructure provides a supportive layout that allows the water to flow through layout that allows the water to flow through our systemour system

Using gravity the water flows from the top Using gravity the water flows from the top to the bottom of our systemto the bottom of our system

This particular model is still in it’s early This particular model is still in it’s early stages and when placed in a home or stages and when placed in a home or building will be much smaller and compactbuilding will be much smaller and compact

Infrastructure ImageInfrastructure Image

Holding Tank

Holding Tank (Display Only)

Filter Separator

Siphon Tank

Recirculation Tank (Display Only)

Impeller

Holding Tank Holding Tank (Display only)(Display only)

Beginning of systemBeginning of system This tank represents water from a house.This tank represents water from a house. Provides the system with water to run the Provides the system with water to run the

impeller.impeller.

Holding TankHolding Tank

Funnel

Plug

Funnel SeparatorFunnel SeparatorFilter:Filter:-Utilizes perforated funnel to separate-Utilizes perforated funnel to separatelarge solids from water large solids from water -The water slides through-The water slides through holes in funnel holes in funnel and leaves out of the sideand leaves out of the side of the drumof the drum-The solids slide down -The solids slide down the funnel, down through the center hole the funnel, down through the center hole

and out the bottom of the drumand out the bottom of the drum

Funnel Separator

Perforated Funnel

Perforated PipeWater

Ramp

Separator Housing

Water Exit

Solid Exit

Siphon Holding TankSiphon Holding Tank

- Stores small increments of waterStores small increments of water- After water reaches the desired level a float After water reaches the desired level a float

lifts a plug and initiates the siphon effect to lifts a plug and initiates the siphon effect to empty the water into the generatorempty the water into the generator

- Siphon effect creates Siphon effect creates velocity and allows velocity and allows water to pull itself water to pull itself out of the tank and out of the tank and into the generatorinto the generator

Siphon Holding Tank ImageSiphon Holding Tank Image

Flush Tank

Siphon Jet

Plug Arm

Float

Water Exit

Bowl

Float Valve

Impeller and Impeller and GeneratorGenerator

Includes:Includes: An impeller spun by An impeller spun by the falling water.the falling water. A motor spun by the A motor spun by the impeller to generate impeller to generate electricity.electricity.Process must be Process must be efficient.efficient.

Impeller Impeller

Has 9 finsHas 9 fins Each fin is concaveEach fin is concave Goal is to spin this as fast as Goal is to spin this as fast as possiblepossible Impeller will spin motor to Impeller will spin motor to produce energyproduce energy

ImpellerImpeller front viewfront view

Impeller 3D viewImpeller 3D view

Concave Fins

Impeller HousingImpeller Housing

Angled Water Entrance

Water Exit Port

Rivet Bosses

Gaskets

Bearing Bosses

Motor/GeneratorMotor/Generator

Spun by the Impeller previously Spun by the Impeller previously viewedviewed

Electricity provided by this device Electricity provided by this device will be sent directly into house for will be sent directly into house for immediate useimmediate use

Loss of funding impeded Loss of funding impeded investigation of this areainvestigation of this area

Prototype impeller and generator.Prototype impeller and generator.

A. B.

C. D.

Re-circulating PumpRe-circulating Pump

--Meant for display purposes onlyMeant for display purposes only

-The goal of model is to create enough -The goal of model is to create enough power for the system to be self sustainingpower for the system to be self sustaining

Project MaterialsProject MaterialsFiberglass matFiberglass mat – to construct the “toilet bowl” – to construct the “toilet bowl”

Resin & HardenerResin & Hardener – for fiber glass – for fiber glass

BondoBondo – to give smooth shape and texture to – to give smooth shape and texture to fiberglassfiberglass

Foam moldFoam mold – to create toilet bowl shape before – to create toilet bowl shape before fiberglass applicationfiberglass application

PVC tubingPVC tubing – to transport water throughout the – to transport water throughout the systemsystem

2X4’s2X4’s – for structure and support of the system – for structure and support of the system

55 gal drums55 gal drums – to hold the water at various – to hold the water at various pointspoints

PlasticPlastic – To mold impeller & housing – To mold impeller & housing

Futuristic ModelFuturistic Model

Solid Exit

Waste Water Entry

Generator

Service Doors

Separator Filter

Siphon Jet Bowl

Service Door