Video: Dab tsi yog qhov kev ua haujlwm ntawm cov khoom siv hluav taws xob?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Upstream Supply chain feem ntau cuam tshuam nrog cov chaw muag khoom, kev yuav khoom thiab cov kab ntau lawm. Nws tuaj yeem cuam tshuam nrog kev yuav khoom siv raw, kev pabcuam thauj khoom, khoom siv hauv chaw ua haujlwm lossis cov khoom tiav. Kev tsim khoom tuaj yeem tshwm sim lossis tsis nyob ntawm lub tuam txhab kev lag luam kev ua si.
Ib qho ntxiv, dab tsi yog txhais los ntawm cov nqes dej thiab nqes dej xa cov saw?
Raws li tus tswv lag luam lossis tus thawj tswj haujlwm lub luag haujlwm rau kev tsim khoom, nkag siab txog saw hlau yog qhov tseem ceeb rau kev ua tiav ntawm koj txoj kev lag luam. Upstream hais txog cov khoom siv uas xav tau rau kev tsim khoom, thaum nqes hav yog qhov rov qab kawg, qhov khoom tau tsim thiab faib tawm.
Dab tsi yog qhov kev lag luam upstream thiab downstream? Cov ntsiab lus upstream thiab downstream kev tsim cov roj thiab roj xa mus rau cov tuam txhab roj lossis roj chaw nyob hauv cov khoom siv. Upstream roj thiab roj ntau lawm yog ua los ntawm tuam txhab leej twg txheeb xyuas, rho tawm, lossis tsim cov khoom siv raw. Dej nqes hav roj thiab roj ntau lawm tuam txhab nyob ze rau cov neeg siv khoom kawg lossis cov neeg siv khoom.
Hauv qhov no, cov dej num twg yog dab tsi?
Upstream hais txog cov ntsiab lus hauv kev tsim khoom uas pib thaum ntxov ntawm cov txheej txheem. Feem ntau siv rau kev lag luam roj thiab roj, kev ua ub no suav nrog kev tshawb nrhiav, kev khawb av, thiab kev rho tawm. Niaj hnub no muaj ntau lub tuam txhab roj loj tau koom ua ke, nyob rau hauv uas lawv tuav dej ntws , midstream, thiab downstream units.
Cov dej num nqes hav yog dab tsi?
Kev ua haujlwm hauv qab yog cov txheej txheem koom nrog hauv kev hloov roj thiab roj rau hauv cov khoom tiav. Cov no suav nrog kho cov roj nyoos rau hauv roj av, kua nkev nkev, diesel, thiab ntau yam ntawm lwm lub zog.
Pom zoo:
Dab tsi yog qhov tsis zoo ntawm kev siv cov khoom siv hluav taws xob txuas ntxiv dua tshiab?
Ib qho ntawm qhov tsis zoo ntawm lub zog tsis txuas ntxiv yog tias nws siv sijhawm ntev. Mining ntawm cov thee, nrhiav cov roj, txhim kho cov roj xyaum, tsim cov roj rigs, ntxig cov kav dej kom tshem tawm thiab kev thauj mus los ntawm cov roj av yog cov txheej txheem siv sijhawm ntau. Lawv kuj siv zog ntau heev
Dab tsi yog kev siv hluav taws xob Yuav ua li cas kev lag luam tsim ntau hom kev siv hluav taws xob?
Kev siv hluav taws xob yog hais txog tus nqi lossis txiaj ntsig uas tus neeg siv khoom tau txais los ntawm kev sib pauv, raws li University of Delaware. Muaj plaub hom kev siv: daim ntawv, qhov chaw, sijhawm thiab muaj; ua ke, lawv pab tsim cov neeg siv khoom txaus siab
Dab tsi yog qhov zoo ntawm kev siv cov khoom siv hluav taws xob txuas ntxiv lossis tsis muaj zog?
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Dab tsi yog lub ntiaj teb kev siv hluav taws xob tauj dua tshiab uas siv los tsim hluav taws xob?
Hydropower
Dab tsi yog qhov sib txawv tseem ceeb ntawm cov khoom siv hluav taws xob tauj dua tshiab thiab cov fossil fuels?
Fossil Roj. Fossil fuels (coal, roj thiab natural gas) tseem yog qhov tseem ceeb rau kev thauj mus los, tsim hluav taws xob, cua sov, cog kev ua haujlwm, thiab lwm yam. Tab sis lawv kuj yog lub hauv paus tseem ceeb ntawm CO2 emissions thiab, tsis zoo li lub zog tauj dua tshiab, yog tsim los ntawm cov khoom siv tag - txawm tias tseem loj heev - khaws cia