Counter Rotating Ring Receiver Reactor Recuperator

Counter Rotating Ring Receiver Reactor Recuperator (CR5) er et stykke udstyr, hvis endoterme termokemiske kredsproces kan spalte carbondioxid til carbonmonoxid og ilt. CR5 er er første skridt i at lave brændstof fra en høj temperaturforskel, varme (sollys). CR5 er en af flere processer, som klassificeres som S2P, (Sunshine to Petrol). ^[2] Af carbonmonoxiden og (hydrogen eller vand) er det muligt at gemme vedvarende energi i form af CO₂-neutralt brændstof – carbonkæder – f.eks. metanol, ætanol... ^[3]

CR5-processen blev oprindelig opfundet af Rich Diver til at splitte vand til hydrogen og oxygen. ^[4] Senere fandt Rich Diver på ideen med at splitte carbondioxid (i stedet for vand) til oxygen og carbonmonoxid med den samme proces. Carbonmonoxid kan anvendes til at syntetisere metanol, ætanol, butanol og mange andre energirige flydende syntetiske brændstoffer. ^[5] ^[6]

Bemærk at fotosyntese (bl.a. sollys til sukker) har en virkningsgrad på ca. 6,6%. ^[7] Hvis CR5 på sigt kan gemme sollysets energi mere effektivt, kan det være mere interessant at lave brændstof baseret på vedvarende energi end biologisk baseret brændstof. CR5-paneler kan f.eks. placeres i ørkener og måske på skibe.

Kilder/referencer[redigér | rediger kildetekst]

^ American Chemical Society (2008, April 11). Expert Foresees 10 More Years Of Research & Development To Make Solar Energy Competitive. ScienceDaily. Retrieved April 24, 2008 Citat: "... "Solar can potentially provide all the electricity and fuel we need to power the planet," Harry Gray, Ph.D...In his talk at the ACS Presidential Symposium, Gray cited the vast potential of solar energy, noting that more energy from sunlight strikes the Earth in one hour than all of the energy consumed on the planet in one year..."
^ "December 7, 2007, sandia.gov: Sandia's Sunshine to Petrol project seeks fuels from thin air" (PDF). Arkiveret fra originalen (PDF) 11. maj 2009. Hentet 27. december 2007.
^ 11. dec 2007, Ing.dk: Omvendt forbrænding i ny solfanger Arkiveret 16. maj 2008 hos Wayback Machine Citat: "...Den samme solfanger kunne bruges til at oparbejde forbrændingsprodukterne vand og CO2 til brændstofferne CO (kulilte) og ilt. Dermed bliver det muligt at videreforarbejde kulilten til syntetiske flydende brændsler [ og dermed gemme vedvarende energi; sollys ] som metanol, benzin, diesel eller jetbrændstof..."
^ 14-February-2006, Fuelcellworks: Sandia Labs Researcher Rich Diver Invents New Way to Make Hydrogen for Fuel Arkiveret 13. december 2007 hos Wayback Machine Citat: "...His invention, the Counter Rotating Ring Receiver Reactor Recuperator (CR5, for short), splits water into hydrogen and oxygen, using a simple, two-step thermochemical process...the theme of his PhD dissertation at the University of Minnesota — and of concentrated solar gained from his 15 years working with Stirling engine solar collector systems at Sandia..."
^ en:Synthetic fuel
^ December 5, 2007, Sandia National Laboratories – Sandia’s Sunshine to Petrol project seeks fuel from thin air Arkiveret 1. marts 2010 hos Wayback Machine Citat: "...CR5 inventor Rich Diver says the original idea for the device was to break down water into hydrogen and oxygen...Over the past year they have shown proof of concept and are completing a prototype device that will use concentrated solar energy to reenergize carbon dioxide or water, the products of combustion. This will form carbon monoxide, hydrogen, and oxygen, which ultimately could be used to synthesize liquid fuels in an integrated S2P system..."
^ upei.ca: Photosynthesis Citat: "...The overall efficiency is then .286x.43x.8x.67 = .066 or 6.6%..."

[1] American Chemical Society (2008, April 11). Expert Foresees 10 More Years Of Research & Development To Make Solar Energy Competitive. ScienceDaily. Retrieved April 24, 2008 Citat: "... "Solar can potentially provide all the electricity and fuel we need to power the planet," Harry Gray, Ph.D...In his talk at the ACS Presidential Symposium, Gray cited the vast potential of solar energy, noting that more energy from sunlight strikes the Earth in one hour than all of the energy consumed on the planet in one year..."

[2] "December 7, 2007, sandia.gov: Sandia's Sunshine to Petrol project seeks fuels from thin air" (PDF). Arkiveret fra originalen (PDF) 11. maj 2009. Hentet 27. december 2007.

[3] 11. dec 2007, Ing.dk: Omvendt forbrænding i ny solfanger Arkiveret 16. maj 2008 hos Wayback Machine Citat: "...Den samme solfanger kunne bruges til at oparbejde forbrændingsprodukterne vand og CO2 til brændstofferne CO (kulilte) og ilt. Dermed bliver det muligt at videreforarbejde kulilten til syntetiske flydende brændsler [ og dermed gemme vedvarende energi; sollys ] som metanol, benzin, diesel eller jetbrændstof..."

[4] 14-February-2006, Fuelcellworks: Sandia Labs Researcher Rich Diver Invents New Way to Make Hydrogen for Fuel Arkiveret 13. december 2007 hos Wayback Machine Citat: "...His invention, the Counter Rotating Ring Receiver Reactor Recuperator (CR5, for short), splits water into hydrogen and oxygen, using a simple, two-step thermochemical process...the theme of his PhD dissertation at the University of Minnesota — and of concentrated solar gained from his 15 years working with Stirling engine solar collector systems at Sandia..."

[5] :Synthetic fuel

[6] December 5, 2007, Sandia National Laboratories – Sandia’s Sunshine to Petrol project seeks fuel from thin air Arkiveret 1. marts 2010 hos Wayback Machine Citat: "...CR5 inventor Rich Diver says the original idea for the device was to break down water into hydrogen and oxygen...Over the past year they have shown proof of concept and are completing a prototype device that will use concentrated solar energy to reenergize carbon dioxide or water, the products of combustion. This will form carbon monoxide, hydrogen, and oxygen, which ultimately could be used to synthesize liquid fuels in an integrated S2P system..."

[7] upei.ca: Photosynthesis Citat: "...The overall efficiency is then .286x.43x.8x.67 = .066 or 6.6%..."

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