The Shuman Sun-Heat Absorber

Harvest of the Sun: A cost effective solar thermal technology to simultaneously provide affordable energy and generate mass employment in developing Sun‐belt regions

“…[17] The first PTC-based plant was built by Frank Shuman in 1912 for running a steam engine to drive a water pump: here truss design was used for the collector structure. [18] In 1979 Hutchinson made the design based on a central tube system call torque tube collector [19] : which design was used in the SEGS-II & III plants. These designs faced a problem of poor counter-weighting leading to the LS-3 design based on a frame structure: which turned out to have inadequate torsional stiffness.…”