Abstract: A solar energy conversion system, in which two separated arrays of refracting elements disperse incident sunlight and concentrate the sunlight onto solar energy converters, such that each converter receives a narrow portion of the broad solar spectrum and thereby operates at higher efficiency.

Abstract: The method for generating steam with concentrated solar radiation includes the step of heating an absorber by solar radiation and directing a stream of air through the absorber to produce a heated air. The heated air is guided through a heat storage device provided for compensating short-term temperature fluctuations. Steam is generated with the heated air and is thereby cooled. At least a portion of the cooled air is returned to the upstream side of the absorber. The device for preforming the method includes a tower having an air heating device with a solar radiation absorber connected to the top of the tower. An air inlet for introducing air into the air heating device is provided. A steam generator is connected to the tower downstream of the air heating device. A heated air channel is arranged at the tower for guiding the heated air from the air heating device to the steam generator.

Abstract: A steam generator having two vaporization chambers filled with molten metal salts for sequential flash evaporation of preheated atomized water through multiple vaporization tubes in said respective chambers. The molten metal salts are heated by secondary solar thermal input from lens assemblies and primary heat input from U-shaped hot air heating tubes within said vaporization chambers supplied by gas fired tube burners. Steam vapor generated by initial vaporization chamber is re-circulated to the secondary chamber outputting super heated steam. The molten metal vaporization chambers are encased in a single pressure vessel with re-circulation of condensate and multiple heat exchangers within.

Abstract: A solar energy based domestic hot water system which employs a columnar-type heat exchanger designated as a thermal booster having two columns, through one of which passes extremely warm water coming from the output of a solar collector to prewarm colder water coming from the solar storage tank and passing through the second of which columns, on its way to the conventional electric or gas domestic hot water heater. The thermal booster warms the water in the second column primarily during periods when no hot water faucet in the hot water delivery system is in an actuated condition. Optionally a coil heater exchanger may be disposed in the upper section of the storage tank to warm entering cold water from the cold water inlet source prior to its passage through the second pipe as above on its route to the domestic hot water heater. Operation of the system requires minor modification of the domestic hot water heater of the system at its input pipe and by the inclusion of an extra value controlled outlet.