5. Geometrical concentration ratio ‘C’ for tubular receive
!#
We have taken D= 0.03 m
The three parameters rim angle, aperture width and focal length are determine the cross-section
of PTC. is expressed as a function of the ratio of the aperture width to the focal length.
tan =
$%
'(
7. )
The function of the rim angle is expressed as the ratio of the aperture width to the focal length
that is = a/+,
Here is the focal length, i.e. the distance between the vertex of the parabola and the focal
point. Equation of parabola on x axis:
- ./
0
Table 1: Specifications of PTC
FABRICATION OF PTC
The PTC parts has constructed according to given below process and descriptions.
1-Frame structure for PTC system holding and support
For holding and support the receiver and reflector a frame structure of made by mild steel
Iron has assembled with use of arc welding, drilling and nut-bolt joint. The reflector support frame
portion was adjustable to horizontal axis for automatic or manual sun tracking. The single Sun
tracking and double Sun tracking structure is designs according structure frame manner.