Transcript Barco Solar - Omayra

University of Puerto Rico –Mayagüez
Agricultural and Biosystems Engineering
TMAG 4005 – Agricultural Electrification
2nd Semester 2005 - 06
Course Project:
Solar Energy Powered Boat
By: Omayra Ortiz Santiago
(802-03-5293)
Team Members

From right to left:



Omayra Ortiz
Christian Colmenares
Jeremy Ramirez
Model Picture
Direction
Control
Solar Cells
Motor
Head Light
Propeller
Passenger Seat
Challenges in the Design and
Construction of the Electrical System


We decided to use solar
cells from a calculator, we
were pleased because we
read a 4.06 of voltage, and
its was ideal for our motor
system; because the
electrical motor only
needed 1.0 V for it to run.
Then of failures intents, our
solar cells did not work…
We concluded that the
solar cells did not have
enough current.
Electrical Material List





Soldering Kit
Electrical Wires
Black Tape
Electrical Pliers
Two Sided Tape
Electrical Materials





Electrical Multimeter
Electrical Switch
Negative and
Positive Terminal
Wires
3v Lithium Battery
Little Light Bulb
Challenges in the Design and
Construction of the Electrical System



We decided to use a solar cells that we bought from radio
shack. These solar cells, each one have 0.55 V. It is in series
elements are enough for the electrical motor boat.
To connect the solar cells we weltered the cables together and
covered them with black tape.
We read with the electrical multimeter that the electrical motor
boat was used 0.962 V, and 0.16 A.
Mechanical Material List









Powerade Plastic Bottles
Frozen Chicken Foam
Base
Candy Egg Case
Apple Juice Plastic Handle
Toy Boat Steering Wheel
UHU and Silicon Glue
Scissors, Grabs
Drill, little toy paddle
Spray Paint, Knife, Screw
Challenges in the Design and
Construction of the Mechanical
System



Our group consult
what mechanical
boat we wanted.
We related our
ideas, and we
decided to make as
a catamaran little
boat.
So we used recycle
materials.
Challenges in the Design and
Construction of the Mechanical
System


Cut the apple
bottle plastic
handle to make a
strong mirror boat,
where the motor
would be
connected.
Connect the
Powerade plastic
bottles with grabs
to the chicken
foam base.
Challenges in the Design and
Construction of the Mechanical
System
3. The cover of the motor and propeller was
modified because we wanted it to have free
movement. To achieve this we had to cut it
a little and put a screw.
4. Then we painted our boat, for originality…
Challenges in the Mechanical
Control Direction System

We did a hole to
attach a little toy
paddle.
Propeller Material List



We did not build the
propeller
We used a Motor
with Toy Boat
Propeller
Electrical Wires
Challenges in the Design and
Construction of the Propeller System


We made the holes to pass the wires.
The motor and propeller are connect with a
switch.
Electrical Diagram of
Propulsion System
Electrical Diagram of
Little Head Light
Power Requirements of the
Propulsion Boat
Voltage Current
Power
Requirement
(V)
(A)
Theoretical
Value
1.10
0.18
Direct Sunlight
Experimental
Value
0.962
0.16
Direct Sunlight
Power Requirements of the
Little Head Light
Voltage Current
Power
Requirements
(V)
(A)
Theoretical
Value
-
-
3 V Lithium
Battery
Experimental
Value
1.96
0.03
3 V Lithium
Battery
Calculations

With the experimental results its
possible to calculate the resistance of
the motor. With Ohm’s Law
V  IR


R
V
1.0V

 6.25
I 0.16 A
And to calculate the power of the
motor; P  VI  (1.0V )(0.16 A)  0.16W
For the little head light,
R
V
3.0V

 100
I 0.03 A
P  VI  (3.0V )(0.03 A)  0.09W
Electrical Safety
Considerations


Wires are secured
with electrical black
tape.
Another special tape
(blue tape) was
used in the base
area (foam) where
the wires where
connected.
Mechanical Safety Considerations


The boat was tested
with excess weight
to prove buoyancy
of the plastic
bottles.
The foam material
(base) is also
buoyant.
Passenger Transport Area

The passenger
transport area was
designed especially
for the
transportation of an
egg so we used a
candy egg case for
the real egg
transportation seat.
Main Challenges


Make that solar cells produce the
enough voltage and current.
The angle which the solar cells could
receive enough energy from the
sunlight to power the propulsion
system.
Team Overview

Workload distribution


Member participation


Fair
Fair
Model outcome

Excellent
Project Overview

Applied concepts


Project content


Application of Undergrad Studies
Irrelevant to field of work
Project difficulty

OK
Final Comments




This little solar boat was really a experience
to demonstrate and stimulate our invent
capacity.
I consider that a project like this should
continue to be part of the course.
I would develop a different alternative
project, like a project with motors of a system
that we could use in the agricultural field.
A recommendation should be not to use solar
cells, probably another renewable sources for
example, methane gas.