Structural work on a solar furnace that will concentrate the sun's rays into a narrow beam hot enough to melt steel in seconds, was completed recently at the University of New South Wales, Sydney, Australia.
CV Furnace and Tower
LV Mirror frame suspended on crane hoist.
SCU Left, Professor Milner
ANGLE V.. Mirror frame being raised
SCU Crane driver
ANGLE V.. Mirror frame being lowered into position at tower top
SV Two University technicians
CU. Bolin holds mirror section
SV Ciutronich holds mirror section
SV Directed rays from mirror burn through paper
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Background: Structural work on a solar furnace that will concentrate the sun's rays into a narrow beam hot enough to melt steel in seconds, was completed recently at the University of New South Wales, Sydney, Australia. The furnace consists of two parabolic mirrors, one on the ground, and the other on a plat form about 100 feet above. The sun's rays are reflected to the top mirror from the one at ground level, channelling the energy into a single beam. Head of the School of Physics, Professor Milner, and Mr. Ciutronich, a lecturer at the University of New South Wales watched the frame for the top mirror lifted into position.
The top mirror will have 162 segments, show by Mr. Bolin, on the left, who devised a way of casting them of aluminium on plastic base - much cheaper than grinding glass.
The power of just one of the segments is demonstrated in a simple test. Eventually the furnace will produce temperature of four thousand degrees centigrade.