Hauv kev hloov pauv thoob ntiaj teb mus rau lub zog huv, qhov hloov pauv hloov pauv tau zoo xws li hnub ci thiab cua muaj peev xwm loj heev tab sis kuj tseem muaj cov teeb meem loj. Lawv qhov tsis sib xws-tsav los ntawm huab cua, nruab hnub- hmo ntuj cycles, thiab raws caij nyoog variations- feem ntau ua rau curtailment (khoom siv zog) los yog daim phiaj instability. Compressed Air Energy Storage (CAES) stands as a mature, large -scale solution that converts surplus electric into compressed air for storage and releases on the demand to generate power, effectively absorbing and use the wind and solar energy when ensures grid stability and balance.
CAES khaws cov hluav taws xob hluav taws xob raws li qhov muaj peev xwm ua kom muaj peev xwm los ntawm huab cua compressing, ua kom lub sijhawm cia ntawm cov xuab moos mus rau lub lis piam nrog qhov poob tsawg. Thaum xav tau, cov cua compressed tso tawm kom tsav turbines thiab tsim hluav taws xob. Cov thev naus laus zis no tshwj xeeb tshaj yog zoo- haum rau loj- nplai, ntev- lub sijhawm khaws cia, hloov pauv hloov pauv hloov pauv mus rau qhov xa tawm tau, txhim khu kev qha fais fab uas ua tau raws li puag ncig -- moos daim phiaj xav tau.
Lub hauv paus Technology thiab Cov Ntsiab Cai
Lub hauv paus ntawm CAES yog nyob rau hauv cov thermodynamics ntawm cov pa compression thiab expansion. Cua sov thaum compression thiab txias thaum lub sij hawm nthuav. Kev ua haujlwm siab nyob ntawm kev tswj xyuas kom zoo:
Conventional (Diabatic) CAES: Compression heat dissipated los ntawm intercoolers, thiab roj (feem ntau natural gas) yog siv los reheat cua ua ntej nthuav. Round-kev ua haujlwm zoo yog feem ntau 40–55%.
Advanced Adiabatic CAES (AA-CAES): Compression heat yog ntes thiab khaws cia rau hauv thermal zog cia (TES) systems-xws li pob zeb txaj, molten ntsev, los yog thermal roj-rau reused thaum lub sij hawm nthuav. Kev ua tau zoo ncav cuag 70% lossis siab dua yam tsis muaj kev siv roj fossil.
Isothermal/Near-Isothermal CAES: Cov khoom siv hluav taws xob siab tshaj plaws lossis cov tshuaj tsuag dej muaj nyob ze - qhov kub thiab txias tsis tu ncua thaum lub sij hawm compression thiab nthuav dav, nrog rau kev ua tau zoo ntawm 80-95% hauv cov txheej txheem kev loj hlob.
Cov nroj tsuag CAES niaj hnub ua haujlwm ntawm qhov siab ntawm 4-7 MPa (40-70 bar) thiab tso siab rau txoj cai roj zoo tagnrho rau kev khaws cia. Tsis zoo li cov roj teeb, CAES ua tau zoo nyob rau hauv ntev -lub sijhawm, gigawatt- cov ntawv teev npe nrog qhov tsis zoo degradation ntau xyoo lawm.
Cov cuab yeej tseem ceeb thiab cov khoom siv
Ib qho chaw CAES ib txwm muaj xws li:
Compressors: Multi-theem hluav taws xob turbo-compressors siv los ntawm cov hluav taws xob ntau ntxiv, uas ua rau cov huab cua nyob ib puag ncig siv qis- thiab siab- theem siab nrog intercooling.
Cua Cia: Cov qhov tsua hauv av (ntsev domes, qhov chaw roj av, lossis cov dej hauv av) lossis saum toj no - av siab - cov hlab ntsha muaj zog (xws li cov yeeb nkab arrays). Salt caverns nyiam rau lawv impermeability thiab siab-cycling durability ntawm qhov tob ntawm 300-1,500 meters.
Thermal Management System(hauv cov qauv tsim siab tshaj): Cov khoom siv hluav taws xob kub thiab cov khoom siv TES uas ntes thiab khaws cov cua sov compression.
Expanders/Turbines thiab Generators: Siab- thiab qis-siab turbo-expanders ua ke rau lub tshuab hluav taws xob. Cov pa tshuab siv lub combustor rau reheating; advanced adiabatic systems rov siv TES cua sov.
Kev Pabcuam Systems: Kev tswj kev siab, bidirectional lub cev muaj zog / lub tshuab hluav taws xob, thiab cov khoom siv sib txuas sib txuas.
|
Tsis muaj. |
Khoom npe |
Main Function |
Technical nta thiab cov ntsiab cai |
Txhawb Cov Lus Qhia |
|
1 |
Compressors |
Kev them nyiaj-theem fais fab: hloov hluav taws xob ntau ntxiv rau hauv compressed- huab cua muaj peev xwm zog |
Multi-theem hluav taws xob turbo-compressors (axial lossis centrifugal), ua haujlwm ntawm 4–7 MPa (40–70 bar), nruab nrog intercoolers thiab cua sov- rov qab tshuab; variable- ceev drives ua kom cov lus teb sai rau cov hloov pauv tshiab |
Ua tiav qhov system layout highlighting lub tsheb ciav hlau compressor |
|
2 |
Cua Cia Systems |
Ntev -ntev cia ntawm compressed cua (teev mus rau lub lis piam) |
Hauv av ntsev caverns (300–1,500 m qhov tob) los yog siab - ntom saum toj no - cov yeeb nkab hauv av- cov hlab ntsha; tsim los rau kev rov ua kom siab dua nrog ze - xoom xau |
Hla- daim duab ntu uas qhia ob qho tib si hauv av qhov tsua thiab qhov chaw thermal-kev tswj hwm interface |
|
3 |
Thermal Management & Thermal Energy Storage (TES) Systems |
Kev ntes, khaws cia, thiab rov siv dua compression cua sov kom siab -efficiency, roj- ua haujlwm dawb |
Thaum tshav kub kub exchangers (HX1/HX2) ua ke nrog TES media (ceramic txaj, molten ntsev, los yog thermal roj) khaws cia kub txog 600 degree; kaw -loop rov qab ua tiav ib puag ncig-kev ua haujlwm zoo tshaj 70% |
Them -theem cua sov- ntws schematic + daim duab qhia kev sib koom ua ke tag nrho |
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4 |
Expanders, Turbines & Generators |
Tso tawm-theem fais fab nroj tsuag: hloov cov cua compressed rau hauv hluav taws xob |
Multi-theem turbo-expanders (siab- thiab qis-siab) ncaj qha txuas mus rau synchronous generators; tag nrho load mus txog nyob rau hauv 10 feeb nrog xoom combustion emissions nyob rau hauv advanced designs |
Tiag -world expander-generator installation duab |
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5 |
Kev Pabcuam Systems |
Ua kom muaj kev nyab xeeb, ua haujlwm zoo ntawm cov nroj tsuag thiab kev sib koom ua ke |
Siab- tswj li qub, bidirectional lub cev muaj zog- cov tshuab hluav taws xob, SCADA saib xyuas, daim phiaj hloov pauv, cov yees txias, thiab cov kav dej dav dav |
Sab hauv saib ntawm turbine Hall qhia cov kav dej thiab hluav taws xob sib xyaw ua ke |
Cov qauv tsim qauv ntawm CAES tso cai rau kev ywj pheej ntawm kev ua kom zoo ntawm compression, cia, thiab nthuav dav, xa cov kev ua haujlwm yooj yim tsis sib xws los ntawm ntau lwm cov thev naus laus zis cia.
Cov txheej txheem ua haujlwm
CAES ua haujlwm hauv ob theem pib:
Theem (Compression) Theem: Thaum lub sij hawm ntawm cov khoom siv txuas ntxiv dua tshiab lossis kev thov qis, cov hluav taws xob ntau dhau ua rau cov compressors. Cua yog compressed nyob rau hauv ntau theem (cua sov), txias, thiab txhaj rau hauv cia. Hauv cov tshuab adiabatic siab heev, cov cua sov tau muab khaws cia hauv TES.
Tshem tawm (Expansion / Generation) Phase: Thaum qhov kev thov nce siab lossis rov ua dua tshiab tsis txaus, cov cua compressed tso tawm, preheated (siv TES tshav kub los yog cov roj ntxiv), nthuav dav los ntawm cov turbines los tsav cov tshuab hluav taws xob, thiab tso tawm kom txias dua. Lub kaw lus tuaj yeem ncav cuag kev thauj khoom hauv qab 10 feeb, ua rau nws zoo tagnrho rau kev sib npaug ntawm daim phiaj, kev tswj xyuas zaus, thiab kev sib tw.
Cov nroj tsuag tuaj yeem ncig txhua hnub lossis raws caij nyoog nrog tus kheej qis heev - tus nqi tawm. Tsim kev siv hluav taws xob- piv txwv suav nrog Huntorf cog hauv Tebchaws Yelemees (321 MW, ua haujlwm txij li xyoo 1978) thiab McIntosh cog hauv Tebchaws Meskas (110 MW, txij li xyoo 1991).
Tiag -Kev Tshawb Fawb Ntiaj Teb: 100 MW Advanced Compressed Air Energy Storage Demonstration Project
Raws li qhov piv txwv tseem ceeb ntawm kev ua tiav CAES qhov kev ua tiav, Tuam Tshoj 100 MW siab heev compressed cua zog cia lub teb chaws ua qauv qhia qhov project showcases thev naus laus zis kev loj hlob thiab loj - daim ntawv thov muaj peev xwm. Tsim los ntawm kev coj noj coj ua ntawm Lub Tsev Haujlwm ntawm Engineering Thermophysics, Suav Academy ntawm Kev Tshawb Fawb, nws yog lub ntiaj teb thawj 100 MW-chav kawm qib siab CAES chaw nres tsheb thiab tam sim no qhov loj tshaj plaws thiab siab tshaj plaws -kev ua tau zoo tshaj CAES cog hauv kev ua haujlwm.
System Configuration Details:
Muaj peev xwm: 100 MW fais fab tso zis / 400 MWh lub zog cia.
Tshuab hom: Advanced adiabatic CAES (AA-CAES) featuring supercritical thermal storage, supercritical heat exchange, high-load compression/expansion, and full system integration-twl tshem tawm fossil fuel dependency.
Txoj kev khaws cia: High-density artificial air storage vessels (pipe-array design), increasing energy density and reducing reliance on large underground caverns.
Kev ua tau zoo: Round -kev ua haujlwm ntawm 70.4%.
Performance Parameters: Ib xyoos ib xyoos muaj tshaj 132 lab kWh, txaus kom tau raws li qhov xav tau hluav taws xob siab tshaj plaws rau kwv yees li 50,000 tsev neeg; txuag 42,000 tons ntawm cov qauv thee thiab txo CO₂ emissions li ntawm 109,000 tons hauv ib xyoos.
Cov cuab yeej tseem ceeb: Multi-theem compressors, turbine expanders/generator sets, supercritical TES thermal storage system, thiab high-pressure pipe-array storage vessels.
Qhov chaw: Lub Nroog Guyuan, Lub Nroog, Hebei Xeev, hauv Miaotan Cloud Computing Industrial Park; occupies kwv yees li 5.7 hectares. Qhov project yog kab hluav taws xob- txuas rau xyoo 2022 thiab tau nkag mus rau kev npaj ua lag luam.
Qhov project no qhia tau hais tias peb muaj peev xwm ua tiav qhov loj - teev CAES cov thawj coj los ntawm kev rov qab los ntawm compression cua sov, optimizing thermal tswj, thiab siv cov qauv tsim los kov yeej cov kev txwv ib txwm muaj hauv kev ua tau zoo, kev siv roj, thiab xaiv qhov chaw. Nws muab qhov muaj txiaj ntsig tiag tiag -kev lees paub kev tsim vaj tsev hauv ntiaj teb thiab tus qauv tsim kom muaj peev xwm rau lub ntiaj teb txuas ntxiv hluav taws xob sib txuas.
Yuav ua li cas CAES pab kom muaj txiaj ntsig zoo thiab kev siv cua thiab hnub ci zog
Qhov sib txawv ntawm cua thiab hnub ci zog feem ntau ua rau muaj hluav taws xob ntau ntxiv uas tsis tuaj yeem nqus tau los ntawm daim phiaj. CAES ua haujlwm ua "kev poob siab" rau daim phiaj, ncaj qha hais txog qhov teeb meem no:
Absorbing Surplus Power: Thaum lub sij hawm muaj zog cua los yog siab tshaj hnub ci irradiance, lub zog ntau dhau yog siv los compress thiab khaws cua hauv av, tiv thaiv kev curtailment.
Smoothing Output: CAES decouples tiam los ntawm kev noj, tso tseg lub zog thaum lub sij hawm nyob ntsiag to los yog tom qab hnub poob kom xa tau ruaj khov, kwv yees lub zog.
Grid Stability thiab Integration: Nws cov lus teb ceev ceev txhawb kev tswj hwm zaus, tswj hluav taws xob, thiab dub - pib cov kev pabcuam. Cua- hnub ci-CAES hybrid systems tsim "virtual baseload" cov nroj tsuag, txo kev cia siab rau cov fossil- roj peakers.
Economic thiab Environmental Benefits: CAES txo qis cov nqi khaws cia, txhim kho tus nqi siv dua tshiab, thiab txiav cov pa roj carbon emissions (tshwj xeeb tshaj yog nyob rau hauv cov txheej txheem adiabatic advanced). Nws yog qhov sib tw tshwj xeeb rau qhov loj - nplai, ntev - lub sijhawm txuas ntxiv txuas ntxiv.
Co-Nrhiav CAES nrog cua ua liaj ua teb lossis chaw hnub ci ua kom zoo dua cov kev sib txuas lus thiab qhib cov nyiaj tau los ntxiv los ntawm kev siv hluav taws xob, kev lag luam muaj peev xwm, thiab cov kev pabcuam ntxiv.
Saib Tom ntej: CAES raws li lub pob zeb ntawm Cov Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob
CAES tau hloov zuj zus los ntawm nws lub hauv paus pib xyoo 1970 mus rau qhov hloov pauv tau, ntev -ntev sijhawm cia thev naus laus zis nrog gigawatt- teev- nplai muaj peev xwm. Advanced adiabatic thiab isothermal variants tshem tawm cov fossil roj siv tag nrho, ua kom zoo nrog net -zero hom phiaj. Nws qhov scalability thiab geographic adaptability (qhov chaw tsim nyog geology muaj nyob) pab kom hloov pauv ntawm cov khoom siv cua thiab hnub ci mus rau kev ntseeg siab, siab - tus nqi hluav taws xob.
Cov haujlwm ua tau zoo xws li lees paub tias CAES thev naus laus zis tau npaj txhij rau kev lag luam - nplai xa tawm. Los ntawm kev siv CAES, lub zog txuas ntxiv tuaj yeem kov yeej nws qhov kev sib tw loj tshaj plaws - qhov hloov pauv - nrawm nrawm hloov pauv hluav taws xob thiab xa cov nyiaj rov qab los thiab kev ruaj ntseg hluav taws xob rau cov khoom siv hluav taws xob, kev lag luam, thiab cov zej zog thoob ntiaj teb. Cov haujlwm tsis tu ncua hauv Suav teb thiab thoob ntiaj teb qhia tias cov cua sib xyaw ua ke- hnub ci- CAES cov chaw nres tsheb fais fab tsis yog lub zeem muag lawm tab sis qhov tseeb tam sim no- xa hluav taws xob huv, xa hluav taws xob thaum twg los tau thiab qhov twg los xij nws xav tau.