| StirCrazy |
10-17-2004 04:14 AM |
Quote:
Originally Posted by AndyL
I doubt your 98.9% number though looking at your reflectors. More than 1.1% of the light is going to restrike the bulb - resulting in losses...
Andy
|
the reflectance value is for the silver spectral aluminum its self not for the design of the reflector. but what you can't see because of the bracket for the MH is a small ^ (bend in the reflector) that prevents direct reflection back into the bulb.
anyways the point I am trying to make is that spectral aluminum has a slightly higher reflectance value than a mirror. high gloss white paint will give you a much better value than flat white paint but it is still going to far lower than any polished metal. the reason your study shows tinfoil as lower is it is wrinkled and it disperses the light to much. if it was perfectly smooth it would be higher than paint.
Hwy, I just noticed yor from the fort, are you working in the tar sands at all? My Dad is heading back up to run another shutdown up there, so much for retirment :mrgreen:
Steve |
