Today we had to present stage 3 of our project. When we entered class there was only 6 of us. Jal and I were the only group that was there and me and him were not keen on presenting first so we had to wait for about half an hour before finally someone decided to present first. For the first time Simon and Vadim were not the first to present their work which makes me feel a bit better.
Also this time I was really happy with our progress in the technology project. There was plenty to present with the practical testing that we had done. I was really happy with what he had presented after we had finished as I believed that we had made some really good progress over the other groups that had presented.
At the end of the presentation Anura questioned us as to whether or not we thought the project was viable or not. I immediately said no as the highest pressure achieved was 0.5 psi. And most exhaust brakes operate at around 30 - 60 psi. For this reason I said no. Anura then said we should calculate backwards and workout whether that pressure achieved would actually slow the piston down or not. This is a good idea and it would be good to see what becomes of these calculations. I still believe however after our practical testing that the exhaust brake on small diesel engines is going to be unviable. Considering the cost of the unit compared to what it can achieve for engine braking in diesel engines.
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