Abstract: A fluid conduit system, including a central fluid channel having an entrance for a working fluid flowing in a first direction at one end and an exit for the working fluid at an opposite end, a circumferential fluid channel surrounding the central fluid channel adapted for receiving the working fluid exiting the central fluid channel and directing the working fluid in a second direction opposite the first direction, at least one device positioned in the central fluid channel for having the working fluid flow therethrough, and fluid communication between the device and outside the circumferential fluid channel, wherein thermal energy supplied by the working fluid is used by a thermal energy consumption system.

Abstract: An annulus assembly including a central fluid channel for flow of a central fluid therethrough, a circumferential fluid channel surrounding the central fluid channel, and a first thermal insulation layer intermediate the central fluid channel and the circumferential fluid channel, for direct fluid contact with the central fluid.

Abstract: Provided is a combined cycle power system including at least one solar power plant including a concentrating dish configured to concentrate solar radiation; a solar receiver disposed and configured to utilize concentrated solar radiation for heating a first working fluid, and a first turbine configured for generating electricity by expansion therein of the heated first working fluid, and at least one recovery power plant including a heat recovery unit configured for utilizing exhaust heat of the first turbine to heat a second working fluid, and a second turbine configured for generating electricity by expansion therein of the heated second working fluid.

Abstract: A combined cycle power system is provided including at least one solar power plant including a concentrating dish configured to concentrate solar radiation; a solar receiver disposed and configured to utilize concentrated solar radiation for heating a first working fluid, and a first turbine configured for generating electricity by expansion therein of the heated first working fluid, and at least one recovery power plant including a heat recovery unit configured for utilizing exhaust heat of the first turbine to heat a second working fluid, and a second turbine configured for generating electricity by expansion therein of the heated second working fluid.

Abstract: A thermal energy generation system having a working fluid and a system fluid, including an energy system for heating the working fluid by applying heat thereto, a main heat exchanger assembly for transferring heat from the working fluid to the system fluid, a thermal energy consumption system for receiving the heated system fluid from the main heat exchanger assembly when the temperature of the system fluid is at or above a predetermined temperature, and a thermal energy conservation assembly for receiving the heated system fluid from the main heat exchanger assembly and for reintroducing the system fluid thereto when the temperature of the system fluid is less than the predetermined temperature.

Abstract: An annulus assembly including a central fluid channel for flow of a central fluid therethrough, a circumferential fluid channel surrounding the central fluid channel, and a first thermal insulation layer intermediate the central fluid channel and the circumferential fluid channel, for direct fluid contact with the central fluid.

Abstract: A thermal generation system including a first renewable energy system operative to heat a first working fluid flowing therein, a second renewable energy system operative to heat a second working fluid flowing therein, and a heat transfer fluid for providing a thermal energy consumption system with thermal energy, the heat transfer fluid being designated to be heated by thermal energy, provided by the heated first working fluid, to a first elevated temperature and the heat transfer fluid being designated to be heated by thermal energy, provided by the heated second working fluid, to a second elevated temperature, wherein the second elevated temperature is greater than the first elevated temperature, the heat transfer fluid entering the thermal energy consumption system at the second elevated temperature.

Abstract: A solar thermal system comprising at least one solar system including a solar system working fluid flowing therethrough, and a solar receiver for heating the solar system working fluid by solar radiation admitted into the solar receiver, and a thermal energy system in fluid communication with the solar system and receiving the heated solar system working fluid so as to produce thermal energy.

Abstract: A combined cycle power system is provided including at least one solar power plant including a concentrating dish configured to concentrate solar radiation; a solar receiver disposed and configured to utilize concentrated solar radiation for heating a first working fluid, and a first turbine configured for generating electricity by expansion therein of the heated first working fluid, and at least one recovery power plant including a heat recovery unit configured for utilizing exhaust heat of the first turbine to heat a second working fluid, and a second turbine configured for generating electricity by expansion therein of the heated second working fluid.

Abstract: A getter support assembly for supporting getters in a focusing collector type solar collector system comprising a tube radiation absorber (TRA) and a glass enclosure tube, defining therebetween an annular space, and a solar radiation focusing reflector. The getter support assembly comprises a bridge formed with an elongated trough having a getter support portion. The bridge further comprising feet fixedly attached to the TRA supporting the trough so that the trough is spaced apart from the TRA. The trough further comprises a radiation reflecting surface facing the TRA for blocking radiation emitted from the TRA and missed solar radiation reflected from the reflector.

Abstract: A getter support assembly for supporting getters in a focusing collector type solar collector system comprising a tube radiation absorber (TRA) and a glass enclosure tube, defining therebetween an annular space, and a solar radiation focusing reflector. The getter support assembly comprises a bridge formed with an elongated trough having a getter support portion. The bridge further comprising feet fixedly attached to the TRA supporting the trough so that the trough is spaced apart from the TRA. The trough further comprises a radiation reflecting surface facing the TRA for blocking radiation emitted from the TRA and missed solar radiation reflected from the reflector.

Abstract: A solar system comprising a reflector and a heat collecting element (HCE) received at the focus of the reflector. The HCE comprises a coated tube received within a coaxial evacuated enveloping glass tube. The enveloping glass tube is secured at respective ends thereof to the coated tube by a coaxially deformable connector element having a distal end thereof sealingly secured to the coated tube and a proximal end thereof sealingly attached to a respective end of the enveloping glass tube by a glass to metal connection (GMC). A radiation shield assembly is provided over the connector element and over the GMC and is secured to the connector element by support legs engaging the connector element adjacent the proximal end.