Parabolic trough technology

With operational experience of more than 20 years in commercial installations,the parabolic trough technology has proven its reliability,showing its impressive potential on a day-to-day basis.Extensive research efforts are now being made to replace the currently used thermal oil with molten salt or through direct steam generation to

With operational experience of more than 20 years in commercial installations, the parabolic trough technology has proven its reliability, showing its impressive potential on a day-to-day basis. Extensive research efforts are now being made to replace the currently used thermal oil with molten salt or through direct steam generation to improve the efficiency of the parabolic trough technology. Parabolic systems use trough-shaped mirrors to focus sunlight onto an absorber tube （receiver） placed in the trough＇ s focal line. The troughs are designed to track the sun along one axis, predominantly north-south. The receivers contain a heat transfer fluid （e. g. synthetic thermal oil, molten salt） which is heated by the focused sunlight. It is circulated in these tubes and pumped through heat exchangers to produce steam. The parabolic the live steam parameters are are operating in eight parabolic trough plants which are under trough technology is currently the best proven and most used technology, even though construction or in planning. As of summer 2010, Siemens steam turbines 30 turbines have been ordered for parabolic