Transcript GE Telecommunication Base Project

GE Telecommunications Base
Wiruca, Nicaragua
Team 7: Section 12
Ricky Schaffer
Mike Stanowski
Adriana Philip
Submitted to Dr. Colledge
Table of Contents
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Project Background
Ideas and Analysis
Design Specifications
Cost Analysis
Social Implications
Summary
Recognizing the Need
• Provide a reliable means of cell phone service
to small villages such as Wiruca, Nicaragua.
Defining The Problem
• To find an inexpensive and environmentally
friendly way of supplying power to a
telecommunication system.
Gantt Chart
Background Information
Wiruca, Nicaragua
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48 families
All are coffee growers
Earnings $100/mth/house
Disposable income of $10/mth/house
No electricity
No cell phone service, but have cell phones for use when traveling
If power were available, they would power: TV, radio, lights, fan
Current cell phone tower/system costs: $300,000-$500,000 per tower/equipment
and $90,000 for the energy system to power it (solar system producing 30
kW/hr/day. (32 solar panels – each 200 W and 24 volts)
Other nearby communities recently put in a solar system for $17,000 for 200
people.
Diesel fuel is $1/liter
Background Information (cont’d)
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Security guard protecting each cell phone tower installation 24 hours each day.
The current protection building for the equipment is built by a subcontractor which the
telecommunication firm employs.
Rated for hurricane and earthquake conditions in the country.
The community pays 1.7 Cordobas/hr for the first 25 kW-hr. They pay x Cordobas for the
second 25 kW-hr. They pay y Cordobas for the third 25 kW-hr, and so on.
The generators currently employed are located inside the building for security and weather
reasons.
The area is mountainous – used for growing coffee. There are micro-hydro systems located in
surrounding communities.
The communities and the university are VERY interested in establishing businesses around
the power generation systems.
If power lines are run from the power generation system – there MAY be regulatory
concerns. Many efforts are taken to install similar systems, and if they produce less than 13.v
kVolts, there are USUALLY no problems from regulators.
CLARO is the cell phone service provider.
Sodium Metal Halide Battery
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Lasts about 15 years (around 2500 cycles)
Temperature Range: -40⁰ C to 55 ⁰ C
It takes 7.5 hours at 150 amps to recharge the sodium metal halide battery once it
has discharged (used) 80% of its energy capacity.
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Temperature – 270C-350C (inside the case)
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Voltage – 1.8-3.4V
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Current- 20-100A
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Cell power – 100-200W
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Resistance (initial) – 7-10mΩ
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Pressure- 1-2 atmospheres
Possible Design Solutions
• Required
– NaMx Battery
– Power Generator
• Alternative Energy
– Geothermal
– Wind
– Solar
– Micro-hydro
Screening Matrix
Criteria
Weighted Matrix
Final Decision
• Solar and Wind combination.
• Provides most feasible option with minimum
cost and maximum output.
Source
Wind Turbine
Solar Panels
% Efficiency
42
15
Rated Capacity (W)
1200
225
Maximum Power Generated per unit (W)
504
33.75
Quantity
3
38
Total Output Generated (W)
1512
1282.5
Wind Energy Specifications
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Skystream Turbine (GE subsidiary)
Rated Capacity: 2.4 kW
Weight: 170 lb (77 kg)
Rotor Diameter: 12 ft (3.72 m)
Direction of Rotation: Clockwise looking upwind
Blades: 3-Fiberglass reinforced composite
Rated Speed: 50 - 325 rpm
Maximum Tip Speed: 216.5 ft/s (66 m/s)
Survival Wind Speed: 140 mph (63 m/s)
Cost: $6,212 x 3 = $18,636
Solar Energy Specifications
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Electrical Parameters
-Optimal Power output: 225 watts
-Power output tolerances: +/- 3%
-Module Efficiency: 13.8%
-Power Output: 38 W
-Voltage at Pmax (Vmpp): 29.5 Volts
-Current at Pmax (Impp): 7.63 Amps
-Operating Conditions
-Operating temperature: - 40 to + 90C
-Max. wind load: 50 psf
-Max. snow load: 113 psf
-Mechanical Characteristics
-Dimensions (L x W x D): 65" x 39" x 2" (1650 x 990 x 50 mm)
-Weight: 43.7 lbs (19.8 kg)
Cost: $516.90 x 38= $19,976.81 + Labor
Solar Panel Angle Calculations
Month
Degrees From Vertical
January
62
February
70
March
78
April
86
May
94
June
102
July
94
August
86
September
78
October
70
November
62
December
54
Generator Specifications
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GE Product
Running Watts (W)-7000 (LP)
Surge Watts (W)-10500 (LP)
Operation-Fully Automatic
Voltage (V) 120
Amps-58.3/29.1 (LP)
Cost: $2289
Supplying the Battery With the 84
watts per square meter
• Insulation
– Internal Insulation (thermal and electrical) to
maintain necessary internal temperature
• Generator to supply needed power
Additional Loads
• Lighting
– Three 30W Halogen CFL Bulbs
– Total: 90W
– GE Product
– Cost: 8 x $9.31 = $74.48
Hut Specifications
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Houses generator and battery
Cement Walls
– Fire resistant
– Capable of handling various weather conditions
– Cost of cement: ((15 ft x 15 ft)x2)=450sqft x $2 = $900 + (4x(15ftx8ft) x
$2=$960 + (4( .5 ft x 15ft x 8ft) x $2= $480
– Total Cost = $2340
Security
– Barbed Wire Fence: $1.50 per foot
– Total Fencing: 100 ft (25 ft sides around the hut)
– Total Cost = $150
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Total Hut Construction Costs: $2490 + Labor
Estimated Total Startup Cost
• Wind System, Solar System, Generator, Lights,
and Hut Construction
• $43,466.29 + Labor
Prototype
Schematic of Telecom Base Station
Time Value of Money
• Diesel Power is a constant flow of cost of
$1/liter.
• Rate of inflation is currently 1.7%
• Alternative energy is a one time large cost and
some small additional maintenance costs
• Diesel Power is becoming more and more
expensive as alternative energy becomes less
and less expensive
Social Implications
• Widespread use of cell phones would allow
residents of Wiruca better access to areas
around them for trading purposes
• Eventually could move Nicaragua out of
developing status and increase global
competitiveness
• Would increase global communication
Summary
• Green telecom station in Wiruca, Nicaragua.
• Best option: Solar-Wind Hybrid
• Estimated Total Startup Cost: $43,466.29
References
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http://portsmouthrienergy.com/A2.pdf
http://www.bonanza.com/booths/magnet4less/items/1_2KW_Max_Hybrid_Wind
_Turbine_Generator_24V__Controller
http://www.solarhome.org/solarpanelsbywatt.aspx
http://solarelectricityhandbook.com/solar-angle-calculator.html
http://www.1000bulbs.com/product/56637/FC30-29392.html
http://www.docstoc.com/docs/9121223/GE-PowerPoint-Template
http://www.solarhome.org/yinglisolaryl225p-29b225watt20voltsolarpanel.aspx
http://www.pasturemanagement.com/electricfencing.htm
http://www.magnet4less.com/product_info.php?products_id=643
http://www.homestandbygeneratorsystems.com/products/aircooled/7kWAutomatic-HGS-040315GEC-0/