0
votes
1answer
41 views

What Material for reflective surface of a solar grill/barbecue? [closed]

I have been planning on building a solar grill for quite a time now, and the one problem, which is also the biggest - I need to shape a mirror into a paraboloid, so it bundles solar energy ...
5
votes
1answer
134 views

Reflectivity of a glowing-hot metal surface

When a polished piece of metal (or steel in particular) is heated to incandescence, how do its reflective properties change? Given a mirror-like surface, would the object temporarily cease to act ...
1
vote
2answers
1k views

How to calculate the temperature of a receiving point from concentrated solar power?

I'm exploring a DIY project about solar power and found very little resources that can explain in a not too simple but not too advanced way how to go about calculating important values in solar power, ...