In this scheme, for converting the energy of the Sun's rays to electricity, hailing from Germany, the rays are focused on oil whose boilng point is above water, in the manner shown.
In this scheme, for converting the energy of the Sun's rays to electricity, hailing from Germany, the rays are focused on oil whose boilng point is above water, in the manner shown.
The Rays of the sun are focused thru a convex lens into a heat exchanger within the insulated oil.
Today we would use a Fresnel lens, as here, http://www.techbriefs.com/content/view/1833/32/
to save weight and $ from grinding the lens.
Oil circulation pipes at the base circulate the hot synthetic like oil in the modern version, from the reservoir, whose temperature is much above boilng water, to a heat exchanger built into the steam tank and back via a pump.
The oil circulation pump, with the circulation pipes leading from inside the steam boiler, to the Solar Converter
The steam boiler, heated by the well insulated oil pipes, has the advantage of working after the Sun goes down, because of the synthetic oils relatively much higher boing point, than the steam (over 400° with some synthetics), that keeps the dynamo's turning.
Depending on insulation, the oil heated, self contained, Solar Converter could work all night till the next day, with battery backup.
The steam travels from the boiler, to the steam engine that drives the dynamo, thru the condenser and pump, and back to the boiler where it is heated to steam again by the circulating hot oil.
Most effective operation would be in the desert sun, with transmission lines to substations from that locality.
Smaller units could be home based, using modern technology, in areas that have sufficient sunlight.
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