team 4 by: rhian kogan anthony mistretta akshit kurani
TRANSCRIPT
CELL PHONE STATION FOR NICARAGUA
Team 4
By:
Rhian Kogan
Anthony Mistretta
Akshit Kurani
Table of Contents
Need/Problem Customer Needs Design Specifications Brainstorming Ideas Decision Matrix Analysis and Design Summary/Conclusion
Need/Problem We recognize the need to design a way to
produce electricity off the grid in order to power a cell phone tower in Nicaragua.
We define the problem to be that Nicaragua has no energy grid. Therefore there are no possibilities for lighting, heating, etc.
Mission Statement:
With our knowledge and resources, we will design a system to produce energy for the cellphone tower in a sustainable, cost effective way.
Customer Needs Assessment
The Nicaraguan Telecom Company is the primary customer. The villagers of Wiruca are the secondary customers.
The Telecom Company wants affordable power for the cell phone tower, while the villagers want this technological advancement for the village.
Design Specifications
Required Power Output: 1.2-1.5kw Dimensions of Hut (Telecom Company) Diesel Generator Fuel Price: $1.00/Liter ~500-700 Potential Cell phone users Cost/Quantity/Properties of the materials
used to build the hut (telecom company) Cost of electricity: $200/Kw Month Battery: 572F charging/discharging
Brainstorming
Diesel Generator Diesel Generator and Solar Power Diesel Generator and Wind Turbine Diesel Generator, Solar Power, and
Wind Turbine Remove Generator and use combination
of solar and wind
Decision Matrix
Selection Criteria Diesel Generator Solar Power and Generator
Wind Turbine with Generator
Wind and Solar with Generator
Operation/Insallation Cost
- - - -
Ease of Use + + + -
Durability + + 0 0
Ease of Manufacture + 0 0 0
Sustainability - + + +
Ease of Installation + - - -
Maintenance Cost + 0 0 0Cost to Use - + - -
Pluses 5 4 2 1
Minuses 3 2 2 3
Same 0 2 2 2
Net 2 2 -1 -2
Rank 1 1 3 4
Continue no yes no no
Analysis and Design
We have decided to use the DC Generator and solar power
We found that this would be the optimal combination of cost-efficiency and sustainability.
In this situation we intend to have the generator as a backup and mainly focusing on the use of solar power.
Specs Typical solar panel produces 14w per square
foot Need about 107 square feet of solar panel The solar panel we selected is 200 watts, at
a price of $577 per panel. Since the required output is approximately
1500 watts, we will use 20 panels to help account for the hours that receive little or no sunlight.
Total Cost $11540 for panels with total 4kw
Turbine output 0 kwh
PV output 8,028 kwh
Generator output 5,194 kwh
Generator fuel 545 gal
Generator hours 4,050 hr
Dump energy 0kwh
Why Not Others
The only other suitable for of power would be the use of a wind turbine
Cost of one wind turbine is more then the cost of our 10 solar panels
Would need a constant wind speed for best results
Conclusion
In conclusion we found that the cell phone base station would be best suited to have the DC generator and solar panels. The cost of the wind turbine would be to excessive and unreliable.