final presentation -11 nov 2015 (part b final)
TRANSCRIPT
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?