dbecker
Mechanical
- Dec 16, 2008
- 138
Hello,
I am trying to understand what the limits are of pre-compressor methanol injection on turbocharged cars.
From my understanding, erosion occurs when you have the wrong combination of compressor speed and droplet size.
I have a turbocharger and I calculated the tip speed of the compressor to be at about 1158 ft/s at maximum boost.
My question is if the inlet tubing to the compressor is 3 feet long and I am flowing 100 ml/min of pure methanol (tiny amounts) will I see erosion if my ambient inlet temps are 80 degrees F?
I did a quick hand calc and the speed the air is moving through the inlet tube is about 160 ft/s so it will take about 20 ms for the air to reach the compressor.
I dont know how to compute the content of liquid left in this mixture, the methanol is injected via a super atomizing nozzle. So inlet droplet size can be assumed some value. I just dont know droplet size at the end of the tube feeding the compressor.
Thank you,
- D
I am trying to understand what the limits are of pre-compressor methanol injection on turbocharged cars.
From my understanding, erosion occurs when you have the wrong combination of compressor speed and droplet size.
I have a turbocharger and I calculated the tip speed of the compressor to be at about 1158 ft/s at maximum boost.
My question is if the inlet tubing to the compressor is 3 feet long and I am flowing 100 ml/min of pure methanol (tiny amounts) will I see erosion if my ambient inlet temps are 80 degrees F?
I did a quick hand calc and the speed the air is moving through the inlet tube is about 160 ft/s so it will take about 20 ms for the air to reach the compressor.
I dont know how to compute the content of liquid left in this mixture, the methanol is injected via a super atomizing nozzle. So inlet droplet size can be assumed some value. I just dont know droplet size at the end of the tube feeding the compressor.
Thank you,
- D