Today we had to present our second presentation for technology project and the progress that we have made with it. The first group that went up was Simon and Vadim and after their presentation on their ECU and the progress that they have made I felt as if we hadnt made enough of an effort.
However after a few more people had presented I had concluded that our progress was much the same to the rest of the class. It seemed as though Jal was quite a bit more nervous than I was about the presentation and at a few points ran out of ideas to say so I had to jump in to complete what he was trying to say. Surprisingly I wasnt as nervous as I first thought I would be.
After our presentation we had a few more curve balls thrown at us for our exhaust brake project. The first curve ball stating the complete opposite of what I had researched. Gerry told us that if the exhaust brake is located behind the turbo then the turbo will spool up faster and faster and with little oil being supplied will actually burst. He likened this comparison to a vacuum cleaner and having your hand placed over the nozzle it causes the motor to spin faster.
Other issues included heat dissipation, a much larger area for exhaust gases to by pass than I first thought and a safety system that makes sure that the exhaust flap does not fully close in case of failure so is that the car is still drive-able.
Now that I have solid works on my computer Jal and I can finally begin the design process of the exhaust brake and start doing calculations to either prove or disprove our idea from working.
Anura was not in class today so we could not go and see him to review what we have done so far so we will have to see him on Thursday so he can help us decide on whether or not we are on the right track or not. And help us decide what step to take from here.
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