notes about some solar concentrators

3. 1. 25° and 45° Acceptance Angles
2. 2.5mm and 5.0mm Exit
Diameters

9. a. A single-axis tracking system.
b. The mirrors concentrate the sunlight and focus it
on a network of stationary steel pipes.
c. Receiver is blackened for intense absorption.
d. Sheltering the mirrors from the wind, to achieve
higher temperature rates and prevents dust from
building up on the mirrors.

12. A parabolic dish
collector is similar in
appearance to a large
satellite dish, but has
mirror-like reflectors
and an absorber at the
focal point. It uses a
dual axis sun tracker

13. A parabolic dish system uses a computer
to track the sun and concentrate the sun's
rays onto a receiver located at the focal
point in front of the dish. In some systems,
a heat engine, such as a Stirling engine, is
linked to the receiver.