Sunday, 30 September 2012

Leakage ~

Tittle        : Leakage

Objective : To close the leak that occured
 
For the past two weeks, i had put the waste inside the cooker and i've found out there was a leakage. The leakage was detect by the smell of the yeast but i am not sure where the smell came from. So, i just assume the leakage was came from the pressure gauge and safety over pressure tube. To solve this problem, i closed this leakage using "Epoxy Super Strength Steel".
 
 
 

 



After a few hours waiting, i go to check if there is still a leakage. Unfortunately the smell is still there. So, probably the leakage is came from the lid of the cooker and i have to seal it soon.

Saturday, 22 September 2012

New Turbine.

Tittle        : New Turbine
 
Objective : To justify the reason of not using homebuilt turbine
 
 
After find out that the turbine i've made before this cannot be used because the motor is so heavy. I have to use a very light motor that can turn even if i just blow it. So, this is the turbine that i get from miss Pusparini Dewi.


turbine (cannot be used)



new turbine
 
 
The problem here is i still get the same output for the new turbine and it can only produce about a.iv(maximum). So, i have to find suitable boost circuit that required lowest input voltage for this turbine. Unfortunately, i cannot find it. So this is my big problem in this project but i am trying to solve this problem.
 

Sunday, 16 September 2012

Put the waste inside the cooker!!

Tittle        : Filled the pressure cooker
 
Objective : To fill the waste garbe into the pressure cooker
 
 
To complete this process i need to make sure i have a hygiene protection procedures. I had bought gloves and masks to do this process to avoid smell form the waste but no matter what i still can smell the yeast. In this process, i used many materials and i took a picture while i'm doing this process.

 
 
 
yeast
 
 
 
smelly yeast


box(soil n food waste)
 


 

 

mask

gloves
 
 
scale
 
empty cooker
 
 
I had put all the food waste, soil and yeast inside the cooker but i did not take a picture due to the smell. Actually, i have no one to help me take a picture and at that time my hand is dirty. Finally, i have sealed the waste.

Thursday, 13 September 2012

Connect temperature gauge at cooker lid

Tittle        : Tick temperature gauge on the cover lid of the cooker
 
Objective : To attach the temperature gauge by by using adhesive.
 
 
 
After my supervisor (miss puspa) told me to try open the nut form the cooker lid, i try to open it by using long nose and i did it. There was a hole that ican put my temperature gauge inside without drill it. So, one of my problem is settled. I bought a glue to stick it on the cooker lid. The first glue i used is RED RTV Silicone where the glue color is red. After waited about 15minutes i discovered that the glue is not strong enough to stick the gauge.



 
 

 
 

Then, the next day i went to hardware shop to buy another glue that is strong enough to stick the gauge. After few minutes finding the right glue, i found  this "EPOXY SUPER STRENGTH STEEL" that need about 1 hour to make sure the glue is dry enough and completely stick to the lid. The differences about this glue is there are 2 glue that has to mix together before apply it to the surfaces and the result is excellent. It just i had forgotten to take the picture where the gauge is stickon the cooker lid.
 
 
 
 

Tuesday, 11 September 2012

Temperature gauge

Tittle       : Temperature gauge
 
Objective : To show the temperature gauge that is going to be used in this project.
 
 
This is one of the equipment that is hard for me to find. Actually, i prefer to use temperature gauge sensor where it can detect temperature using sensor and i was thinking to use digital temperature gauge so it is easier to take the value. I went to several shops including car accessories shop to find this gauge but unfortunately i cannot find it. So, i just bought common temperature gauge at Ace hardware that is used for cooking.


 
 
 
 
So this gauge will be placed at the top of cover lid of the cooker to measure inner temperature. I will update the progress when this gauge is successfully construct.

Sunday, 9 September 2012

Gas regulator

Tittle        : Gas Regulator/Pressure Gauge
 
Objective : To show the gas regulator has been drilled on the cover lid of the cooker
 
 
After i bought a gas regulator to be drilled on the cooker lead, i found out it cannot be used due to some reasons. First, the gas regulator contains valve where it cannot be drilled without a socket like a gas tank in our house. So, i have to use gas pressure regulator.


 
 
 
 
Based on the picture above, the gauge is drilled on the cover lid of the cooker. So, this part is complete. Biogas will comes out from the nozzle.

Friday, 7 September 2012

Turbine

Tittle        : Turbine

Objective : To show that DC motor is connected to the blade.

 
After several trial to get perfect blade, finally i decided to sent the actual blade and motor to be drilled at welding shop beside Masjid Zakaria, gombak. I have tried to make it by own but because of the material cannot be drilled using solder and i do not have the right tools so i cannot do it. Leave it to the expert :)


 
 

 
There was a black spot in the middle of the blade due to unsuitable material used. This is not a complete turbine. I have to change the design of the blade if it is not works.