ram air headlight..............................
03-20-2003, 07:30 AM
#1
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ram air headlight..............................
this just something i made
there are several options on how to set up a ram air system like this
i had it set up with a bmc carbon airbox and the headlight with a tube
<img src="http://pictureposter.audiworld.com/44542/ramlight1.jpg">
<img src="http://pictureposter.audiworld.com/44542/ramlight2.jpg">
<img src="http://pictureposter.audiworld.com/44542/ramlight3.jpg">
<img src="http://pictureposter.audiworld.com/44542/ramlight4.jpg">
there are several options on how to set up a ram air system like this
i had it set up with a bmc carbon airbox and the headlight with a tube
<img src="http://pictureposter.audiworld.com/44542/ramlight1.jpg">
<img src="http://pictureposter.audiworld.com/44542/ramlight2.jpg">
<img src="http://pictureposter.audiworld.com/44542/ramlight3.jpg">
<img src="http://pictureposter.audiworld.com/44542/ramlight4.jpg">
03-20-2003, 09:32 AM
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Turbo charged engines can not benefit from ram air effects...
The intake track of turbo charged engines have a negative (vacuum) side prior to the compressor and a positive (boost) side after the compressor. Creating a positive pressure side prior to the compressor might actual reduce the compressor efficiency since the pressure difference is a factor in output.
NA (normally aspirated) engines benefit because ram air effect can create a positive pressure intake (relatively small) acting similar to a turbo or supercharger compressor.
There is a benefit doing what you are attempting, but it is limited to reduce inlet temperatures and reducing any constrictions made by the current intake snorkel.
NA (normally aspirated) engines benefit because ram air effect can create a positive pressure intake (relatively small) acting similar to a turbo or supercharger compressor.
There is a benefit doing what you are attempting, but it is limited to reduce inlet temperatures and reducing any constrictions made by the current intake snorkel.
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03-20-2003, 09:48 AM
#8
nope! You are thinking of pressure differential at the turbine. Now think of pressure ratio at the
compressor, then associate that with efficiency (aka heat) Galati and Bell run holes for a reason
03-20-2003, 10:15 AM
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Both the turbine and the compressure function under Euler's equation...same rules apply...
Euler's equation states that - If angular momentum increases across a blade row, then TTc > TTb and work was done on the fluid (a compressor).
If angular momentum decreases across a blade row, then TTc < TTb and work was done by the fluid (a turbine).
The final effect on the efficiency of the system is the same. In this case pressure and temperature are closely related - thus greater differences across the system increase efficiency of the system.
Link is an excellent reference.<ul><li><a href="http://web.mit.edu/16.unified/www/SPRING/propulsion/UnifiedPropulsion9/UnifiedPropulsion9.htm">http://web.mit.edu/16.unified/www/SPRING/propulsion/UnifiedPropulsion9/UnifiedPropulsion9.htm</a</li></ul>
If angular momentum decreases across a blade row, then TTc < TTb and work was done by the fluid (a turbine).
The final effect on the efficiency of the system is the same. In this case pressure and temperature are closely related - thus greater differences across the system increase efficiency of the system.
Link is an excellent reference.<ul><li><a href="http://web.mit.edu/16.unified/www/SPRING/propulsion/UnifiedPropulsion9/UnifiedPropulsion9.htm">http://web.mit.edu/16.unified/www/SPRING/propulsion/UnifiedPropulsion9/UnifiedPropulsion9.htm</a</li></ul>
