Abstract: An improved MHD electrical power generating system of the type having a MHD topping cycle and a steam generating bottoming cycle is disclosed. The system typically includes a combustion system, a conventional MHD generator and a first diffuser radiant boiler. The improvement comprises a first supersonic MHD generator and ramjet engine configuration operatively connected in series with each other and with the conventional MHD generator. The first supersonic MHD generator and ramjet engine configuration increase the power output and improve the operating efficiency of the electrical generating system. A diffuser system is also disclosed which is in fluid communication with the supersonic MHD generator and the ramjet engine for collecting bypass plasma gas to be used for heating a second radiant boiler adapted for powering a steam turbine generator.

Abstract: A solar energy collector is disclosed which is comprised of a base and a solar energy absorbing element spaced from the base. The solar energy absorbing element has an accordian-like shape including angularly disposed upper ridges and lower valleys interconnected by generally planar surfaces. The lower valleys are positioned immediately adjacent the base. Fluid supply conduits are positioned between the solar energy absorbing element and the base immediately adjacent the upper ridges. The fluid supply conduits are adapted to supply fluid adjacent the solar energy absorbing element upper ridges which fluid may then flow along the planar surfaces until dropping off the lower valleys onto the base, whereby heat absorbed by the solar energy absorbing element is transferred to the fluid. A trough is provided for receiving the flow of heated fluid along the base.