Haynes International has patented an improved solar tower system using molten salt as heat transfer media at temperatures above 650°C. The system utilizes specific alloys for components like absorption tubes, storage tanks, and heat exchangers. The molten salt preferred is MgCl2—KCl. GlobalData’s report on Haynes International gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Haynes International, Photovoltaic drones was a key innovation area identified from patents. Haynes International's grant share as of May 2024 was 69%. Grant share is based on the ratio of number of grants to total number of patents.
High temperature solar tower system using molten salt
A recently granted patent (Publication Number: US11976346B2) discloses an improved solar tower system designed to efficiently harness solar energy for power generation. The system features absorption tubes, a storage tank, and a heat exchanger, all containing a molten salt heat transfer media with a temperature exceeding 650°C. The innovation lies in using a chloride salt as the molten salt within the specified temperature range of 650°C to 800°C. Additionally, the system incorporates components made of specific alloys containing nickel, chromium, columbium, tantalum, and other elements to withstand the high-temperature environment and corrosive nature of the molten salt.
Furthermore, the patent details various embodiments of the improved solar tower system, highlighting the use of corrosion inhibitors such as magnesium or zirconium to maintain a corrosion rate of less than 60 µm at 850°C in molten chloride salts. The alloys used in the construction of absorption tubes, storage tanks, and heat exchangers are carefully formulated to ensure durability and longevity under extreme operating conditions. With the molten salt heat transfer media capable of reaching temperatures greater than 800°C, this innovative solar tower system offers a promising solution for sustainable energy generation through solar power.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
