4.Discussion

4. Discussion



4 Key findings
  • The system pumped in the baking soda into the vinegar
  • The system detected the high glucose level in the blood
  • The vinegar was neutralised
  • The pump stopped when the pH level of the vinegar was the same as the neutralised solution
  • The pump worked


4.1 Explanation of key findings


Our system pumped in the baking soda into the vinegar.This was successful.The whole system that we made worked because we put the wiring properly and the potentiometer was connected properly to allow the variation of the amount of insulin going into the body.The vinegar was neutralised.This was also successful.The vinegar was substituted for the high glucose level in the blood and the insulin is substituted as baking soda (Science buddies, 2002).

So the pump actually pumped in baking soda into the vinegar and neutralise it.The system detected the the high glucose level in the blood.So there would be a detector on the system to detect the amount of glucose in your blood.So this detector,after detecting the amount of glucose in your blood,it will just activate the pump and it will pump in the insulin.The pump stopped when the pH level of the vinegar was the same as the neutralised solution.So after pumping in baking soda into the vinegar,it will measure the pH value of the blood.If it is 7,the pump will stop working.The last one is the pump did not work.We bought the 12 V 30W pump, so we had the enough current to power the pump so it started running and in the end our artificial pancreas worked well and it was able to pump in baking soda into the vinegar
Science buddies also did a engineering project which is similar to our project, artificial pancreas. Whenever we had any doubts, we referred from the science buddies to check our process of the artificial pancreas as it is similar to our project (Science buddies, 2002).


4.2 Evaluation of engineering goals


Our goal is to reduce the trouble taken by the parents and the children by creating an artificial pancreas. The artificial pancreas will only inject insulin and it will be outside the patient’s body not inside the patient’s body. The artificial pancreas will inject insulin into the body. When the artificial pancreases senses that the the amount of insulin inside the body is enough, the artificial pancreas will stop injecting the insulin. We are doing the experiment by substituting insulin by baking soda and water and substituting high sugar levels in body by vinegar,(American Diabetes Association,2015)
We achieved most of the goals that we stated on the key finding except for the last one which the pump did not work.
Since we bought the correct pump,the 12V and 30W pump, the number of batteries in our system powered enough current for the pump to run. We had 8 batteries, which generated a total of 12 V which was enough to power the pump and make it run.Since it ran, it pumped in baking soda into the vinegar to make it neutralised.


4.3 Areas for improvement


Our areas for further improvement will using a smaller pump with the same amount of volts,which is 12 V. We can make the system smaller,because it is too big.As you can see from our picture of our set-up,you can see that there are many wires and that they are all over the place.So we have to use a box and drill holes into the box and put the wires in so that it would be more organised.As for the tubing of the pump,it is too big so there will be more air trapped inside and it would be harder to remove the air from inside the pump,so we have to get a  thinner tubing which leads to getting a new pump of the same volts (Science buddies,2002).
Since the tubing is smaller right now,it would be a lot easier to remove the air from inside the pump and the system can run efficiently.

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