THE

ZEPHYR PROJECT

GROUP 3NICK PLATE JASMINE AHMADI MARY JO DUBINA

ERICA SHALLCROSS ANIRUDH CHANNARASAPPA

Overview Concept & Design Approach Background Vertical Axis Wind Turbines Application Prototype Cost Analysis Return on Investment Summery & Conclusion

Concept & Design Approach Objective:

Design an aesthetically appealing commercial building with integrated wind turbines to generate clean energy.

Design Approach: Integrated Vertical Axis

Wind Turbines along the corners of the building

Unified building-top turbine system in x shaped array

Background How wind is generated

Temperature differences Cold air in cities vs. warm

air in surrounding area Current Applications

Horizontal Axis Wind Turbines

Vertical Axis Wind Turbines Main concept of the

building design based off of the usage of VAWT

VAWT allow for more integrated wind energy generation

Better integrated wind energy systems

More efficient in turbulent wind conditions Like around buildings

Application

Corner Installation Completed Turbine Assembly

Application Cont.

Complete Building Top Installation

Prototype

Cost Analysis (for one Assembly)

Part Name Material Cost/foot(US) Feet per part Cost/Part(US) Quantity Total Cost(US)

Square Tubing Alum. (alloy 6061) 5.95 1205.80 n/a n/a 7174.51Square Plate Alum. (alloy 6061) n/a n/a 72.40 2.00 144.80

Axel Steel (alloy4140) 23.00 10.92 n/a n/a 251.16Circular Fin Holder Alum. (alloy 6061) n/a n/a 182.46 2.00 364.92

Fins Alum. (alloy 6061) n/a n/a 409.20 5.00 2046.00Ball Bearing Tapered Ring n/a n/a 63.62 1.00 63.62

Bolts Steel-zinc plated n/a n/a 9.53/pack 1.00 9.53Generator n/a n/a n/a ~5000 1.00 5000.00

15054.54Total Cost

Return Investment

Researched/Assumed Facts:-Average wind speed of 10mph for 12 hours per day-Average cost of electricity: 12.73 cents per kWh-Life span of Turbine is 30 years-Air density = 1.23 kg/m^3-Betz Limit = 59.26%

Calculations:

Maximum Available Power from wind = (.5)*(air density)*(surface area of turbine)*(wind velocity)^3*(Betz Limit)

Maximum Available Power from wind = 2185watts or 2.2kW

Power Generation

Profit of Power Generated = (Maximum Available Power from wind)*(hours per day)*(days per year)*(current market price of electricity)

Profit of Power Generated = $1226.66/yr

Breakeven Time

Time to Breakeven = (cost of turbine)/(profit of power Generated)

Time to Breakeven = 12.27 years

Return of Investment

ROI = [(gain from investment) - (cost of investment)] / (cost of investment) *100

ROI = 144% over 30 years

Summary and Conclusion Engineering Design class task

Achieve Aesthetically pleasing look+ encourage clean energy turbine integration

Design process Customer assessmentTurbine designInstallationPower and energy

THANK YOUAny Questions?