PROJECT IDEA PRESENTATION COMPUTER AIDED PRODUCT DEVELOPMENT

Team WHITE WALKERS

BALAJI SATHASIVAM - A0147130UNARESH KUMAR THANIGAIVEL - A0147145H TAPAN RAI BRIJ KISHORE - A0147241MUDAYAPPAN PRAVEEN KANNAN - A0147201WTEAM MEMBERS:

HAVE YOU EVER CONCERNED ABOUT YOUR ELECTRICITY BILL?HAVE YOU EVER WORRIED ABOUT YOUR ENVIRONMENT?

MISSION STATEMENTTo reduce the energy consumption of a Private house building for sustainable living

Role of each Member

NARESH KUMAR THANIGAIVEL - Product Development ProcessTAPAN RAI BRIJ KISHORE - CAD Design and SimulationUDAYAPPAN PRAVEEN KANNAN - CAD Simulation and DMFABALAJI SATHASIVAM - Cost Analysis and Validation

OVERALL PRODUCT DEVELOPMENT PROCESS

Smart Energy WindowIdentifying NeedsConceptual DesignCAD design and ValidationCAE analysis and simulationMaterial and Process SelectionDesign and Material OptimizationCost and Time analysisPrototyping

Customer Survey

CUSTOMER NEEDS?Control the amount of heat and Light from the SUN entering the buildingImprove Comfort for Building OccupantsSave Energy used for Thermal Control devicesPrivacy to decide their room to be bright or dark Time and Effort to spend on cleaning the WindowsConcern about the environment by harmful emissionsCustomized control of windows using Smart Phones

User friendly

CUSTOMER NEEDS AND BENCH MARKINGReduce electricity billAffordable to buyConcern for environmentUser friendly

CONCEPTUAL DESIGN AND SELECTION OFSMART ENERGY WINDOW

FUNCTION DIAGRAM

ACCEPT EXTERNAL ENERGYCONVERT ELECTRICAL ENERGY INTO MECHANICAL MOTIONINPUT TRANSLATIONAL ENERGY TO DRAPES ENERGYREMOTE SYSTEM PROTOCOLSENSORLIGHT INTENSITY SENSOR / TIMERTRIGGER TOOLUSER INTERFACEDRIVEN SHADE

HORIZONTAL DRAPES

VERTICAL DRAPES

TILTING DRAPES

Automated

Manual Over ride

Mechanical Control

CONCEPT ITERATION AND CLASSIFICATION

Final ConceptIntegrated Product

Automated

Manual Over ride

Vertical Draping

HIGHER ENERGY SAVED WITH RESPECT TO ENERGY CONSUMED

LOW COST

LESS COMPLEXITY

OUR PRODUCT FOCUSTimerWifiBluetooth

CONTROL OF THE WINDOWTimerMicro-controller

MotorFeedbackButtonsRemoteMobile AppWireless Protocol Bluetooth/ WiFi

A.C Power

DESIGN OF THE PRODUCT

DESIGN AND WORKING SIMULATION

DESIGN OF THE PRODUCTTotal number of parts16Total number of assemblies3Total Manufactured parts7

All dimensions are in mm

Front ViewSide view

EXPLODED VIEW OF THE PRODUCT

FRAME ASSEMBLYMOTOR ASSEMBLYDRAPE ASSEMBLYDRAPESPLASTIC PLANKSMOTORBRACKETCOUPLERFRAMEROLLERROPES

DETAILED DESIGN

BracketMotor Pulley

DETAILED DESIGNPlastic PlateRollerC - Bracket

WORKING SIMULATION OF SMART ENERGY WINDOW

DRAPES OPENING AND CLOSING MECHANISM

COMPUTER AIDED ENGINEERING ANALYSIS

MECHANICAL ANALYSIS OF THE PRODUCTSTATIC STRUCTURAL ANALYSIS OF BRACKET

ParameterLoad = 20NMin.Max.Total deformation0 mm0.06 mmEquivalent elastic strain1.5e-7 mm/mm6.81e-5 mm/mmVon-Mises Stress0.006 MPa12.8 MPaShear Stress-3.2 MPa+3 MPa

MECHANICAL ANALYSIS OF THE PRODUCTFATIGUE ANALYSIS OF BRACKET

ParameterLoad = 20NMin.Max.Life1e61e6Damage0.0010.001Safety factor6.646515Biaxiality Indication-0.990.98Equivalent alternating stress0.006 MPa12.97MPa

TRANSIENT ANALYSIS

ParameterLoad = 20NMin.Max.Total deformation0 m0.06 mEquivalent elastic strain8 e-7 m/m0.003 m/mVon-Mises Stress216 Pa7.2e5 PaShear elastic strain-0.0001 m/m7.8e-5 m/m

TRANSIENT THERMAL ANALYSIS

AIR POCKETAIR GAPGLASSPOLYPROPYLENENearly Zero temperature rise0.5 degree Celsius increase in temperatureSUN RAYS

DESIGN OPTIMIZATION

Old design of BracketNew design of Bracket

Weight reduction by 20%

Polypropylene

Galvanised Steel

MATERIAL OPTIMIZATION FOR ROLLER

ROLLER

PROTOTYPING

Virtual Prototyping for Injection Moulding

MOLD FLOW SIMULATION OF PULLEY

MATERIAL, COST AND PROCESS ANALYSIS

MATERIAL AND PROCESS SELECTION CRITERIASMART ENERGY WINDOW

Reduce the consumption of waterGreen and sustainableLess consumption of energyReduce,Recycle, Reuse

MATERIAL AND MANUFACTURING PROCESS SELECTIONFRAME ASSEMBLY

MATERIAL AND MANUFACTURING PROCESS SELECTIONMOTOR ASSEMBLY

MATERIAL AND MANUFACTURING PROCESS SELECTIONDRAPE ASSEMBLY

MATERIAL SELECTIONDRAPES

POLYPROPYLENE SACK

LOW THERMAL CONDUCTIVITY 0.1 W/(m K)

COST ESTIMATIONTOTAL PRODUCT COST = 290.28 SGD

COST BENCHMARKING

CONCLUSION

RETURN ON INVESTMENT

Life of Motor 12000 cycles . 1 cycle is considered to be 1 stack up and 1 stack down of drape assembly.Hence life of Smart Window will be around 8.33 Years ( Assuming 4 cycles/day).

CONCLUSION

YEAR 1YEAR 2YEAR 3YEAR 4YEAR 5

BREAK EVEN POINT = 2.848 YearsBreakeven Point 2.9 YearsReturn on investment 75 %

BenefitsEnergy Saving by 20% i.e. 267 kwh/yearLower energy costLowers carbon emission by 10%Automated Screen Closing MechanismManual Override FeatureSmart Phone Control using Wi-FiWindow adaptable to different seasons

LETS SAVE OUR ENERGY AND ENVIRONMENTwith our Product