- #1
vladpaln
- 12
- 0
I have been looking at various solar power dish designs. They have one thing in common, they all have their power generators located at the focal point.
Why don't any of the designs use a secondary mirror located at the focal point and the generator located center of dish and right behind it. The design using secondary mirrors is used in all the large telescopes you find in Chile and Hawaii and seems to work fine.
I see several advantages using the secondary mirror design including full dish utilization, less material required, lighter design, and easier maintenance. The only con I can think of is the secondary mirror will have to be of high quality with >99% reflective surface possibly with some kind of cooling (active/passive).
What am I missing??
Standard Design
Dish with Secondary Mirror
Why don't any of the designs use a secondary mirror located at the focal point and the generator located center of dish and right behind it. The design using secondary mirrors is used in all the large telescopes you find in Chile and Hawaii and seems to work fine.
I see several advantages using the secondary mirror design including full dish utilization, less material required, lighter design, and easier maintenance. The only con I can think of is the secondary mirror will have to be of high quality with >99% reflective surface possibly with some kind of cooling (active/passive).
What am I missing??
Standard Design
Dish with Secondary Mirror