You can also lodge a telephone complaint while you are in Australia by ringing the Australian Consumer Affairs and Fair Trading Hotline 1300 552 263 (local call cost within Australia). The call will be automatically forwarded to the fair trading agency in the state or territory from which you are calling.
Circular paraboloid. A parabolic (or paraboloid or paraboloidal) reflector (or dish or mirror) is a reflective surface used to collect or project energy such as light, sound, or radio waves. Its shape is part of a circular paraboloid, that is, the surface generated by a parabola revolving around its axis. The parabolic reflector transforms an incoming plane wave traveling along the axis into a spherical wave converging toward the focus.
b) Diameter of the compound parabolic concentrator = 180 mm The overall dimension of solar receiver was 1860 mm in length and 1220 mm in breadth. A total of six parabolic concentrators were placed with equal spacing of 15 mm (Fig. 5) over previously constructed flat plate collector.xperiments were carried to study the comparative performance of a solar flat plate collector and compound parabolic concentrator of same size. Average temperature rise of 9.5 0 C was observed during the period. A manual solar tracking was facilitated along the two axes up to 4.68 0 vertical and 11.54 0 horizontal.