Week 15

Title : New Concept

Objectives : To test new concept about wind turbine

Contents : I had opened a webpage regarding my wind turbine design.. and I had found out something amazing.. The blogger used a plastic bottle to make a wind turbine.. The steps to do it are very simple but interesting.. Therefore, I decided to give it a try..

Results : After get a rough time cutting the bottle to get a good shape, I had made 2 bottle that can turn when the wind blow..

 for the white bottle, i had made it to open outside from the bottle.. so it can attract the wind.. for the green bottle, i had made it to open inside, and the results are more better than the white bottle..

this is the closer view of the green bottle.. i put the sellotape to make sure that the position of the bend side are hold in it position..

i made a hole at the cap of the bottle, and put a wire through it.. and it turn smoothly with slow wind.. but unfortunately, it is not suitable for my project.. this is because, when the wind blow, the bottle also swing, and it reduce the turn of the bottle..

Conclusion : i need to make a new design for my project.. i cannot proceed with this design because of the swinging of the bottle.. i had put some weight at the bottom of the bottle, but it just slow it down.. so the next entry, i will show u all my new design..

Week 14

Title : Base for the project

Objectives : to find suitable base for my development of renewable energy using wind's project

Contents : at first, i had buy a 45cm x 30cm clear acrylic sheet or we called it perspek.. it is designed to be a base, but it is not strong enough to hold a project.. after buying and testing it, the prespek broke  into 2 parts... 

 
Results : after doing some research, i decided to buy a wooden base to be my base.. I'm not buying an ordinary wood, but a drawing base.. so, it quite nice to see..

Conclusion : now i proceed with the wood to become my base.. i hope that i will not buy another base.. haha

Week 13

Title : Multimeter

Objectives : to find a suitable multimeter to attach to the board

Contents : for my project, i have to display the value for current or voltage that i get from the moving of magnet inside the solenoid.. therefore, i had walk around Jalan Pasar to find that multimeter.. it is difficult for me to use existing multimeter that is huge and heavy..

 
Results : after taking some consideration from friends, i decided to buy digital multimeter that can display the voltage that i get from the movement of magnet inside the solenoid..

this multimeter i bought for about RM25.00.. this multimeter can vary from 200mV to 200V.. it is suitable for me because my output voltage depends on the power of wind.. if my output voltage during presentation is low, so i can vary the setting for my multimeter at 200mV..


Conclusion : this multimeter need external supply of 5V.. therefore, i have to buy at least a battery to make this happen.. but in my mind, i would like to use an adapter to power it up.. so, i have to go now and buy.. see u soon...

Week 12

Title : Solenoid Part 2

Objectives : to buy the iron core and make it become solenoid

Contents : after doing some research last week, i had decided to use 2nd hand iron core that i get from unused transformer.. the thickness of the iron core is quite small and related with what i want to use.. therefore, i had make some adjustment to the transformer..

 
Results : the transformer is from parts of personal computer.. below is the pictures of the iron core that i had been used..

after pull out the iron core from the transformers, this is the results..

Conclusion : this iron core i will used for the rest of the project.. i hope that this project will succeed..

Week 11

Title : Solenoid Part 1

Objectives : to specify the thickness and number of turns of solenoid around magnet

Contents : A solenoid is a coil wound into a tightly packed helix. In physics, the term solenoid refers to a long, thin loop of wire, often wrapped around a metallic core, which produces a magnetic field when an electric current is passed through it. Solenoids are important because they can create controlled magnetic fields and can be used as electromagnets. The term solenoid refers specifically to a coil designed to produce a uniform magnetic field in a volume of space

 
Results :


the solenoid that i wish to use must have greater number of turns.  therefore, the electricity produce will be higher, based on the hypothesis that is the higher the number of turns, the greater the electricity produced.


Conclusion : solenoid plays important roles in designing the project that i want to be done by the end of semester 7.. so, i need to make it precisely and any important information must be take consideration.

Week 10

Title : Magnet Research Part 2

Objectives : To buy the magnet

Contents : after doing some research about magnet that i would like to used, i found the best magnet, that is cylindrical form magnet, which can be found in http://www.onemagnet.com.my/pro_ndfeb.html.

 
Results : the shape and design of the magnet are as follows..

 

each of this magnet cost me about RM25.. so, i had spent about RM75 only at buying this kind of stuff..

Conclusion : this magnet i will use for the rest of my project. i hope that i had bought the right magnet, aminn...

Week 9

Title : Magnet Research Part 1

Objectives : To classify the best magnet to be used

Contents : this week i need to choose what type of magnet that suit with my project. there are several types of magnet that can be find in the world such as permanent magnet, temporary magnet and electromagnet. in this project, i used a permanent magnet and there are four classes of permanent magnets such as Neodymium Iron Boron (NdFeB), Samarium Cobalt (SmCo), Alnico and Ceramic or Ferrite.

 

Results :


In order to make this project successful, magnet is the most important item that needs to be considered. The points that need to be considered in magnet selection are:

i. Magnetic properties.
ii. Corrosion resistance.
iii. Material cost.
iv. Maximum operating temperature.

A good permanent magnet should produce a high magnetic field with a low mass and should be stable against the influences which would demagnetize it. The desirable properties of such magnet are typically stated in terms of remanence and coercive of the magnet material. Alnico, Nd2Fe14B and SmCo magnet are classified as the rare earth permanent magnets and can produce the largest magnetic flux with the smallest mass.

Conclusion : i have to buy the magnet next week.. see u soon...