WATER HEATING SYSTEM PROJECTA VISION TO NUTURE LIVES USING SIMPLE TECHNOLOGY

FINAL PRESENTATION

CLIENT

World Vision is a humanitarian aid, development, and advocacy organization.

It is active in more than 90 countries.

Their motto is to serve without reason and help without return.

COMPANY DESIGN & MANUFACTURING COMPANY

BOUTIQUE WORK

HAMILTON, NEW ZEALAND

ESTABLISHED IN 1990

IPENZ ACCREDITED MEMBERS

PROJECT TEAM

JACK WILLIAMSON – DESIGN ENGINEER

HUZAIFA MOHSINALLY – PROJECT MANAGER

ETHAN LITCHFIELD – MECHANICAL ENGINEER

ADEN TE KIRI – PRODUCT DEVELOPMENT ENGINEER

PROJECT BRIEFDesign a small, energy efficient and low carbon footprint water

heating system for use in a developing region

SOLAR ENERGY

50-100L WATER

NO ELECTRICAL MAINS

TECHNICALLY UNSOPHISTICAT

ED

AVAILABILITY OF PARTS LOW COST

PRE-MADE PARTS

EASY TO PACK & SHIP

NO SPECIALISED TOOLS

DESIGN CONSIDERATIONS

MECHANICAL CONSTRUCTION

ELECTRICAL CONTROL

THERMAL EFFICIENCY

ENVIRONMENTAL IMPACT

SERVICE REQUIREMENTS

PROCESS OUTLINE1 • COMPLIANCE WITH THE IPENZ

CODE OF ETHICS

2 • 3 DESIGN POSSIBILITIES

3 • EVALUATION PROCESS

4 • IMPROVE CHOSEN DESIGN

5 • SOLIDWORKS DRAWING

6 • 3-D PROTOTYPE

7 •FINAL REPORT & PRESENTATION

LOCATION

AFRICA

3 DESIGN POSSIBILITIES

SOLAR ELECTRIC HEATING SYSTEM

FIREBOX / SOLID FUEL HEATING

SYSTEM

SOLAR EVACUATED TUBE HEATING

SYSTEM

CHOSEN DESIGNSOLAR EVACUATED TUBE COLLECTOR HEATING SYSTEM

INITIAL CONCEPT & SCHEMATIC

WHAT IS A THERMOSTATIC MIXING VALVE?

SYSTEM CONNECTIONS DRAWING

Solar Evacuated Tube Collector - Manifold

SOLIDWORKS DRAWINGS

FINAL ASSEMBLY WITH BILL OF MATERIALS

3-D PROTOTYPING

INTERFACE CONNECTION

BETWEEN SOLAR EVACUATED TUBE & MANIFOLD SOCKET

CALCULATIONSAIM: TO FIND REQUIRED ENERGY

Q=m.c.ΔT

Q=heat required(J) m=mass of water(kg) = 50L :: 50kg

Cwater=4200J/kgK ΔT=change in temperature(K) = (55-25)°C

CALCULATIONSFrom Q = m.c.ΔT, Q = 6.3 x 106 J

1 tube maximum heat absorption = 60W 12 tubes maximum heat absorption = 720W

Average time in optimum conditions = 6 hours

Minimum average heat absorption rate = 291.67W

Minimum absorption efficiency of system = 40%

Minimum time in optimum conditions = 2hr 25min 48s

1 tube effective absorption area = 0.105m2 12 tubes effective absorption area = 1.26m2

Maximum heat available in optimum conditions = 1726.2W

CALCULATIONSKEY POINTS:

LOCATION: KENYA, AFRICA

Solar radiation from the sun in Kenya with no distortion or obstructions = 1370W/m2

It would operate at maximum conditions as long as 41% of the sunlight is absorbed.

It would operate at minimum conditions as long as 16% of the sunlight is absorbed.

PACKAGINGPackaging Material Price

Poly bubble 1300mm Wide $1.80 per metre

Poly bubble 650mm Wide $0.92 per metre

Corrugated Cardboard 1200mm Wide $1.68 per metre

Corrugated Cardboard 600mm Wide $1.03 per metre

Cord Strap 25mm $1.26 per metre

Steel Strap 19mm $0.54 per metre

Clear Packaging Tape 48mm x 100m $5.12 per roll

FULLY ENCLOSED WOODEN PLY CRATE

SHIPPING• Dry cargo

• 40 Foot

• Ships to Kenya

• $6500 NZD

• Bulk shipping

• 208 kits

SHIPPING ROUTES

CHINA PORT

END USER’S HOME

AUCKLAND PORT

AUCKLAND PORT

WORLD VISION DISTRIBUTION CENTRE

JHEA ENGINEERINGHAMILTON WAREHOUSE

KENYA PORT

FINAL PRODUCT KIT• Solar Evacuated tube collector

– Installation instructions– 20 x 60W evacuated tube– 30L Manifold – Pressure relief valve– Frame with all parts

• Thermostatic mixing valve• Three-way water fitting• 2 x Red Hose• 2 x Blue Hose• 2 x 15L Solar bag• Outlet tap• Operating & assembly instructions

All enclosed in a ply crate

with poly bubble wrap

AFTER REACHING END USER’S HOME

WOODEN PLY CRATESSTORAGE

PURPOSES BY END USER

GIVEN BACK TO WORLD VISION DISTRIBUTION

CENTRE

POST INSTALLATION INSPECTION

INFORM WORLD VISION REPRESENTATIVE

REPLACEMENT DISPATCHED WITHIN A

FEW DAYS

COSTINGCOMPONENT QUANTITY COST TOTAL COST

SOLAR EVACUATED TUBE

COLLECTOR KIT1 $600 $600

THERMOSTATIC MIXING VALVE 1 $30 $30

RED HOSE 2 $5 $10

BLUE HOSE 2 $5 $10

SOLAR BAG 2 $20 $40

OUTLET TAP 1 $10 $10

TOTAL $700

SHIPPING & PACKAGING SERVICE TOTAL COST

SHIPPING CHARGE FROM AUCKLAND TO HAMILTON $20

LABOUR CHARGE FOR REPACKING KITS $50

PACKAGING CHARGE FOR PRODUCT KITS $210

SHIPPING CHARGE FROM HAMILTON TO AUCKLAND $20

SHIPPING CHARGE FROM AUCKLAND TO KENYA $40

FREIGHT CHARGE FROM KENYA TO WORLD DISTRIBUTION CENTRE $10

QUALITY CONTROL & ON-SITE COSTS $50

TOTAL $400

RESOURCE COST GRAND TOTAL

SYSTEM COMPONENTS $700$1100

SHIPPING & PACKAGING SERVICES $400

PROJECT TIMELINE

PRODUCT DESIGN: SELLING POINTSCHEAP RENEWABLE ENERGY NO WASTE

UNIVERSAL APPEAL NO MAINTENANCE EASY TO ASSEMBLE & USE

HELPS POOR COMMUNITIES

PARTS EASILY AVAILABLE

HIGHLY EFFICIENT

REFERENCES

http://mfat.govt.nz/Foreign-Relations/Africa/index.php

http://www.teara.govt.nz/en/map/35899/new-zealands-trade-with-

africa

THANK YOUANY QUESTIONS?