# US 8,783,246 B2 · Solar receiver and solar power system having coated conduit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,783,246 B2 - Document ID: US8783246B2 - Status: Granted - Kind: B2 - Application number: 12/637,133 - Filed: 2009-12-14 - Published: 2011-06-16 - Granted: 2014-07-22 - Earliest claimed: 2009-12-14 - Assignees: Aerojet Rocketdyne of DE, Inc. - Applicants: Cheng-Yi Lu; William Determan; David Grimmett; Gregory A. Johnson - Inventors: Cheng-Yi Lu; William Determan; David Grimmett; Gregory A. Johnson - Web page: https://patentgrep.com/patent/US8783246B2 ## CPC - F24S 10/45: {the enclosure being cylindrical} - F24S 20/20: Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants - F24S 40/40: Preventing corrosion; Protecting against dirt or contamination - F24S 40/46: Maintaining vacuum, e.g. by using getters - F24S 2080/09: {Arrangements for reinforcement of solar collector elements} - Y02E 10/40: Solar thermal energy, e.g. solar towers - Y02E 10/44: Heat exchange systems - Y02E 10/46: Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines - F24S: SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS (for producing mechanical power from solar energy F03G6/00) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A solar receiver device includes a metal conduit and a glass container disposed around the metal conduit such that there is a space between the glass container and the conduit. A coating is disposed on the metal conduit and has a composition that includes at least one element from silicon, titanium, aluminum, barium, and samarium. ## Claims ### Claim 1 A solar receiver device comprising: a metal conduit; a glass container disposed around the metal conduit such that there is a space between the glass container and the metal conduit; and a coating disposed on the metal conduit, the coating having a composition that includes oxides of silicon, titanium, aluminum, and barium, wherein the coating is a monolayer. ### Claim 2 (depends on 1) The solar receiver device as recited in claim 1, wherein the composition includes an oxide of samarium. ### Claim 3 (depends on 1) The solar receiver device as recited in claim 1, further comprising an oxide bond layer between the metal conduit and the coating. ### Claim 4 (depends on 3) The solar receiver device as recited in claim 3, wherein the oxide bond layer is a chromate. ### Claim 5 (depends on 3) The solar receiver device as recited in claim 3, wherein the oxide bond layer is alumina. ### Claim 6 A solar receiver device comprising: a metal conduit; a glass container disposed around the metal conduit such that is a space between the glass container and the metal conduit; and a coating disposed on the metal conduit, the coating having a composition including 24-68 wt. % oxide of silicon, 1-40 wt. % oxide of titanium, up to 20 wt. % oxide of aluminum, and 16-52 wt. % oxide of barium. ### Claim 7 (depends on 6) The solar receiver device as recited in claim 6, including 34-58 wt. % oxide of silicon, 6-25.5 wt. % oxide of titanium, 5-10 wt. % oxide of alumina, and 26-42 wt. % oxide of barium. ### Claim 8 (depends on 7) The solar receiver device as recited in claim 7, including 44-48 wt. % oxide of silicon, 11-14.5 wt. % oxide of titanium, 7-8 wt. % oxide of aluminum, 31-37 wt. % oxide of barium. ### Claim 9 (depends on 6) The solar receiver device as recited in claim 6, further comprising 1-5 wt. % kaolinite clay, 0.1-5 wt. % oxide of chromium, and up to 5 wt. % bentonite clay. ### Claim 10 (depends on 9) The solar receiver device as recited in claim 9, including about 3 wt. % kaolinite clay, about 1 wt. % oxide of chromium, and about 0.3 wt. % bentonite clay. ### Claim 11 (depends on 9) The solar receiver device as recited in claim 9, further comprising 1-10 wt. % oxide of samarium. ### Claim 12 (depends on 11) The solar receiver as recited in claim 11, including 2-6 wt. % oxide of samarium. ### Claim 13 A solar power system comprising: at least one solar receiver for carrying a working fluid; at least one solar reflector for directing solar energy towards the at least one solar receiver to heat the working fluid; and a power generator for receiving the heated working fluid and generating electricity, and wherein the at least one solar receiver includes a metal conduit, a glass container disposed around the metal conduit such that there is a space between the glass container and the conduit, and a coating disposed on the metal conduit, the coating having a composition including 24-68 wt. % oxide of silicon, 1-40 wt. % oxide of titanium, up to 20 wt. % oxide of aluminum, and 16-52 wt. % oxide of barium. ### Claim 14 A method of processing a solar receiver device, comprising: forming a coating on a metal conduit that is to be disposed within a glass container around the metal conduit such that there is a space between the glass container and the conduit, the coating being formed with a composition that includes 24-68 wt. % oxide of silicon, 1-40 wt. % oxide of titanium, up to 20 wt. % oxide of aluminum, and 16-52 wt. % oxide of barium. ### Claim 15 (depends on 14) The method as recited in claim 14, wherein the forming of the coating includes casting the coating using a slurry. ### Claim 16 (depends on 14) The method as recited in claim 14, further including chromizing or aluminizing the metal conduit prior to forming the coating to form an oxide bond coat on the metal conduit. ### Claim 17 A solar receiver device comprising: a metal conduit; a glass container around the metal conduit such that there is a space between the glass container and the metal conduit; and a coating disposed on an inner surface of the metal conduit, the coating having a composition that includes oxides of silicon, titanium, aluminum, and barium. ### Claim 18 A solar receiver device comprising: a metal conduit; a glass container disposed around the metal conduit such that there is a space between the glass container and the metal conduit; and a coating disposed on the metal conduit, the coating having a composition that includes oxides of silicon, titanium, aluminum, and 16-52 wt. % oxide of barium.