1. Course project: Solar Energy Powered Boat University of Puerto Rico-Mayagüez Agricultural Science College Agricultural and Biosystems engineering TMAG 4005-Agricultural electrification Second semester 2005-2006

2. Team members Carlos Fernando Rosado Torres Carlos Fernando Rosado Torres Marcos Loperena Marcos Loperena Profesor Fernando Perez Profesor Fernando Perez Marcos’ cousin Marcos’ cousin

3. Model picture

6. Electrical materials list Circuit board Circuit board Black and red wires Black and red wires Recorder motor Recorder motor 6v solar cell 6v solar cell On/off switch On/off switch Knife Knife Foam support and doble face tape Foam support and doble face tape The most challenging in the construction of the electrical system was to connect a close circuit with a switch because we were doing it wrong and without a circuit board once the profesor lease us a board it was a piece of cake. At the begining we were trying to use another motor and also a direction system from an r/c airplane but;one the motor requires more amps and the solar cell doesn’t produce the amount needing and, two the direction was in need of another amount of current so we decide to quit dealing with the directio and take the course we can.

7. Mechanical materials list Toy boat from 1,2,3 store Toy boat from 1,2,3 store Rubber belt Rubber belt Recorder electric motor Recorder electric motor Lego shaft and pulley Lego shaft and pulley r/c airplane direction (not used). r/c airplane direction (not used). Knife Knife 2 pound double face tape 2 pound double face tape The most challenge work we do at the mechanical system was to attach the motor to the toy boat and we do it with white foam also the direction that explain again need some current we can’t satisfied. The other problem in the final design there was no place to put it after hours dealing with it making fit with the not used power transmission that was a system from a r/c sport utility vehicle we intended to use.

8. Propeller material list Lego shaft, pulley, mount and propeller. Lego shaft, pulley, mount and propeller. Power transmission(not used) Power transmission(not used) Double face tape Double face tape Lego ® does evrything!!!

9. Electrical diagram

10. Power requirements Voltage: Voltage: 6v electric motor(estimate) 6v electric motor(estimate) Current: Current: 200ma electric motor(estimate) 200ma electric motor(estimate) Power: Power: P=v*i P=v*i P=6v*200ma=1.2 watts P=6v*200ma=1.2 watts

11. Electrical safety considerations The electric components are safe onboard and we use tape to cover all wires. The solar cell is on top the cabin attach to it with double side tape and the motor does not touch the water because is onboard also. The electric components are safe onboard and we use tape to cover all wires. The solar cell is on top the cabin attach to it with double side tape and the motor does not touch the water because is onboard also.

12. Mechanical safety considerations The mechanical safety is on the motor mounts and propeller mounts in the form of double side tape, is repetitive because the boat was simple and with minor mechanical components. The mechanical safety is on the motor mounts and propeller mounts in the form of double side tape, is repetitive because the boat was simple and with minor mechanical components.

13. Passenger transport area The passenger transport area was on th front of the boat to make balance with the electrical and mechanical components. Made with white foam with the exact size of a large egg, keepin it safety of all dangers. The passenger transport area was on th front of the boat to make balance with the electrical and mechanical components. Made with white foam with the exact size of a large egg, keepin it safety of all dangers.

14. Main challenges The brainstorming of how to do a new and full solar toy boat from scratch. The brainstorming of how to do a new and full solar toy boat from scratch. Many notebooks sketches but too expensive for reality and simplicity of the project. Many notebooks sketches but too expensive for reality and simplicity of the project. The answer was all ready on the internet of how things is gone together and but practically problems always came along the consttruction. The answer was all ready on the internet of how things is gone together and but practically problems always came along the consttruction. Looking for cost reduction due to the high value of solar cells decide to buy a brand new simple toy boat, one solar cell and electric wires for our nice project. Looking for cost reduction due to the high value of solar cells decide to buy a brand new simple toy boat, one solar cell and electric wires for our nice project.

15. Main challenge Our solar boat construction becomes easy with a lot of foam from my partner and the destruction of one airplane from past times hobbies. Our solar boat construction becomes easy with a lot of foam from my partner and the destruction of one airplane from past times hobbies. The electric motor requires more voltage than the cell can suply. The next thing recycle an old recorder and use the electric motor,becomes a major change on our first try. The electric motor requires more voltage than the cell can suply. The next thing recycle an old recorder and use the electric motor,becomes a major change on our first try. All put together was in good performance with direct daylight test and the second boat design stays as our project. All put together was in good performance with direct daylight test and the second boat design stays as our project.

16. Team over view Good balance of work. Good balance of work. Time less the breaks is 4 hours for the whole construction. Time less the breaks is 4 hours for the whole construction. Marcos got a lot of recycle parts. Marcos got a lot of recycle parts. Marcos buy all the new and connect his cousin to try his LEGOS. Marcos buy all the new and connect his cousin to try his LEGOS. OVERALL TEAM WORK!!! OVERALL TEAM WORK!!!

17. Project overview A ONE OF A KIND EXPERIENCE!! A ONE OF A KIND EXPERIENCE!! The solar power is the future of the regrowing nature for our children. The solar power is the future of the regrowing nature for our children. The application of the class make an easy to deal project. Medium difficulty of inexperience constructors. The application of the class make an easy to deal project. Medium difficulty of inexperience constructors. Nature’s most real world is the all day contamination of it’s resources but with little things like this project the minds of people evolute for good. Focus on thinking if the decision of going full solar electric cars and houses is the answer of the two big problems of of universal knowledge global warming and future generation good life like now. Nature’s most real world is the all day contamination of it’s resources but with little things like this project the minds of people evolute for good. Focus on thinking if the decision of going full solar electric cars and houses is the answer of the two big problems of of universal knowledge global warming and future generation good life like now.

18. Final coments The joy of doing ourself a solar boat is infinite. Also the help of nice people becomes a major factor of realizing a challenge of this magnitude but knowing that anyone attracts to the simplicity this project make it a real good experience for the next level of the ecological agriculture that for Puerto Rico honestly is not a far goal. The joy of doing ourself a solar boat is infinite. Also the help of nice people becomes a major factor of realizing a challenge of this magnitude but knowing that anyone attracts to the simplicity this project make it a real good experience for the next level of the ecological agriculture that for Puerto Rico honestly is not a far goal.

19. Final coments Integrating simple engineering focus on renowable energy can be produce on enviromental friendly agriculture. Integrating simple engineering focus on renowable energy can be produce on enviromental friendly agriculture. Not an expensive oportunity if the nature is first. Not an expensive oportunity if the nature is first. This is a definitely course project for sure!! This is a definitely course project for sure!!

20. Future hobbie house projects