Thermal photovoltaic efficiency ntawm 40 feem pua! Cov kws tshawb fawb tau tsim cov thermal photovoltaic cell tshiab!
May 30, 2022
Ib pab neeg tshawb fawb los ntawm MIT thiab National Renewable Energy Laboratory (NREL) tau ua tiav thiab ua kom pom lub thermophotovoltaic (TPV) cell muaj peev xwm hloov cov cua sov rau hauv hluav taws xob tau zoo dua li cov pa turbines.
Thermophotovoltaic (TPV) hloov lub teeb ntawm infrared wavelengths mus rau hauv hluav taws xob feem ntau los ntawm cov nyhuv photovoltaic, thiab muaj peev xwm paub txog ib txoj kev ntawm lub zog cia thiab hloov dua siab tshiab.
90 feem pua ntawm cov hluav taws xob hauv ntiaj teb yog tsim los ntawm cov khoom siv hluav taws xob xws li cov pa roj carbon monoxide, thee thiab cov hnub ci zog. Rau ib puas xyoo, kev hloov pauv ntawm lub zog hluav taws xob no rau hauv hluav taws xob tau vam khom feem ntau ntawm chav turbines.
Qhov nruab nrab, chav turbines tsuas tuaj yeem hloov tau li ntawm 35 feem pua ntawm lawv cov cua kub hauv hluav taws xob. Txawm tias lub tshuab hluav taws xob ua tau zoo tshaj plaws puas tau tsim muaj qhov ua tau zoo tshaj plaws ntawm ib puag ncig 60 feem pua. Ua kom qhov teeb meem loj dua, chav turbines cia siab rau qhov txav mus los uas yuav tsum tau ua haujlwm ntawm qee qhov ntsuas kub.
Thiab qhov kev tsim tshiab no yog tsim los ntes cov photons ntau dua los ntawm qhov chaw kub dua, ua tsaug rau nws siv cov ntaub ntawv ntau dua-bandgap thiab ntau qhov sib txuas. Hauv kev ntsuam xyuas ntawm 1900 degrees Celsius thiab 2400 degrees Celsius, TPV cell tshiab tau khaws cia txog 40 feem pua ntawm kev ua haujlwm. Thaum ntxov TPV hlwb nruab nrab nyob ib ncig ntawm 20 feem pua kev ua tau zoo, nrog rau cov ntaub ntawv dhau los rau kev ua tau zoo tshaj plaws ntawm 32 feem pua.
Asegun Henry, Robert N. Noyce Career Development xibfwb hauv MIT Department of Mechanical Engineering thiab ib tug ntawm cov kws tshawb fawb ntawm qhov project, hais tias: "Thermal photovoltaic cells yog cov kauj ruam tseem ceeb kawg hauv kev ua pov thawj tias thermal roj teeb yog lub tswv yim siv tau. kauj ruam ntawm txoj kev kom tag nrho decarbonizing daim phiaj. "
