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"Thermal efficiency" yog ib qho teeb meem uas ib txwm tham hauv tsheb roj. Yog tias koj xav tau kev ua haujlwm siab, koj xav tau kev ua haujlwm siab, thiab yog tias koj xav tau roj tsawg, koj kuj xav tau kev ua haujlwm siab. Tab sis tus txheej txheem siab npaum li cas tuaj yeem ua kom thermal efficiency ntawm lub tshuab hluav taws xob sab hauv tuaj yeem ncav cuag?
Cov txheej txheem siab tshaj plaws rau cov tshuab tsim tawm tsis pub tshaj 45%. Tam sim no, BYD's 1.5L NA Atkinson voj voog muaj tus qauv siab tshaj plaws ntawm 43.02%. Cov qauv rau feem ntau lub cav yog nyob ib ncig ntawm 35%. Lub thermal efficiency ntawm diesel xyaw yog nyob rau hauv thaj tsam ntawm 35% mus rau 45%, uas tsis yog siab heev.
Puas muaj ib txoj hauv kev los ua kom cov thermal efficiency ntawm lub cav muaj zog? Yog tias nws tuaj yeem nce mus rau ib nrab lossis txawm tias ob npaug ntawm qib tam sim no, lub neej yav tom ntej ntawm cov roj tsheb yuav zoo li cas?
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Lub thermal efficiency ntawm sab hauv combustion engine tsis tuaj yeem siab, uas yog qhov tsis muaj txiaj ntsig zoo; lub tshuab hluav taws xob ultra-siab thermal efficiency tseem nyob hauv chav kuaj tsuas yog tshaj 50%, thiab cov ntaub ntawv uas lawv siv yog "ceramic composite material". Lub npe hu ua ceramics ntawm no yog siv los hlawv Lub tswvyim ntawm ceramics rau ua lub raj mis thiab jars yog txawv. Qhov no yog cov khoom siv nanocomposite siab, thiab cov nqi tsim khoom yog siab heev.
Thiab txawm tias thermal efficiency ntawm lub cav ceramic no tsuas yog kwv yees li 50%. Dab tsi txwv cov thermal efficiency ntawm internal combustion engines? ! Xa mus rau daim duab hauv qab no.
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Inlet thiab tso pa poob, hnav poob, txias losses, thiab combustion txaus poob, qhov exaggerated tshaj ntawm cov kev poob yog "txias poob"; thiaj li hu ua Internal combustion engines los yog sab nraud combustion engines yog "cov cav hluav taws xob" uas tso siab rau lub zog hluav taws xob uas tsim los ntawm cov roj hlawv. , thiab ces hloov dua siab tshiab rau hauv txhua yam zog, uas yog, lub zog, los ntawm ib tug complex mechanical qauv.
Txoj cai thib ob ntawm thermodynamics hais tias lub zog cua sov yuav raug xa los ntawm cov khoom kub kub mus rau cov khoom kub. Cov nplaim hluav taws kub ntawm cov roj combustion siab heev. Roj av tuaj yeem ncav cuag 1200 degree thiab diesel tuaj yeem ncav cuag 1800 degree. Nws tuaj yeem pom tias exaggerated lub tshav kub zog generated yog li cas; thiab lub cav lub cev kub Nws yog qis dua qhov kub ntawm cov nplaim taws, tab sis cov khoom ntawm lub cav kuj muaj qhov txwv. Yog tias nws tshaj qhov pib, nws yuav yaj. Yog li ntawd, cov khoom siv yuav nqus tau ntau lub zog ntawm cov cua sov, tab sis nws tsis tuaj yeem nqus cov cua sov xwb, yog li xav tau lub tshuab cua txias.
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Lub tshuab cua txias tau muab faib ua ob ntu. Ib qho yog cov ntxuam hluav taws xob sab nraud thiab cov cua ntws uas nqus cov cua sov ntawm lub cev los ntawm sab nraud kom nws txias. Lwm qhov yog cov tshuaj tua kab mob hauv lub cev uas nqus cov cua sov lub zog tsim los ntawm kev sib xyaw thiab ua kom nws txias los ntawm sab hauv. Tsuas yog nyob rau hauv txoj kev no tuaj yeem tiv thaiv cov ntaub ntawv ntawm lub cav los ntawm melting. Kev puas tsuaj, tab sis qhov no tseem yuav plam (nqus) lub zog kub ntau, thiab qhov uas tuaj yeem hloov mus rau hauv lub zog yuav raug txo kom tsawg.
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Yog li yog tias koj xav txhim kho cov thermal efficiency ntawm lub cav, lub hauv paus tseem ceeb yog kom txo tau qhov txias txias. Txoj kev txo nws yog kom nce cov tshav kub tsis kam ntawm cov khoom siv cav. Tam sim no, zoo li cov khoom siv siab uas tuaj yeem xaiv tau yog qhov txwv tsis pub tshaj. Nano-ceramic composite cov ntaub ntawv tuaj yeem txiav txim siab, tab sis nrog cov khoom siv no Tus nqi ntawm kev tsim lub cav yuav tsis zoo.
Yog li ntawd, lub combustion engine nyob rau hauv lub infinite voj voog. Tus nqi tsim khoom ntawm high-efficiency internal combustion engine yog siab heev, thiab tsis muaj peev xwm ua kom nrov. Lub thermal efficiency ntawm sab hauv combustion xyaw ua los ntawm cov ntaub ntawv zoo tib yam tsis tuaj yeem siab, thiab kev txwv ntawm lub zog thiab kev siv roj tsawg heev.
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Nws yog qhov tsis muaj tseeb los cia siab tias yuav txhim kho cov thermal efficiency ntawm lub tshuab hluav taws xob sab hauv yog tias tsis muaj kev cuam tshuam hauv cov ntaub ntawv tshawb fawb, tab sis yuav tsis muaj kev tawg. Yog li ntawd, peb tsuas tuaj yeem siv lwm cov thev naus laus zis los tsim cov tshuab ua haujlwm siab nyob rau hauv cov khoom siv uas twb muaj lawm. Cov kev taw qhia kom ua tiav high efficiency yog "tsis hlawv roj" !
Xws li cov tshuab hluav taws xob.
Cov hluav taws xob tam sim no nkag mus rau lub cev muaj zog winding los ntawm lub hwj chim roj teeb pob tsim ib qho chaw electromagnetic, uas tuaj yeem tsav lub rotor los ntawm "mutally repelling" cov hlau nplaum ntawm cov hlau nplaum ruaj khov lossis cov hlau nplaum ntawm lwm cov coils; cov qauv tuaj yeem yooj yim heev, tab sis lub ntsiab lus tseem ceeb yog lub hauv paus ntsiab lus ntawm kev hloov kho lub zog. Sib nqus teb es tsis txhob thermal zog, qhov teeb meem ntawm qhov txias losses yog daws. Cov qauv hluav taws xob yog qhov yooj yim heev, thiab cov neeg kho tshuab tsis zoo kuj tseem qis heev.
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Yog li ntawd, "thermal efficiency" txwv ntawm lub cev muaj zog yuav exaggerated heev, thiab lub ultra-high standard ruaj khov hlau nplaum synchronous lub cev muaj zog tuaj yeem ncav cuag 97.5%! Qhov no yog qhov siab tshaj qhov ncav cuag ntawm internal combustion engines. Asynchronous AC motors muaj qhov poob qis hauv qhov kev kub ceev. Yog tias qhov zoo sib xws thiab qhov sib txawv tau siv ua ke, kev ua haujlwm ntawm lub tshuab hluav taws xob tsav yuav zoo tagnrho.
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High-efficiency, high-performance, thiab qis-zog-siv cav tuaj yeem tsim tau siv cov khoom siv zoo tib yam. Nws zoo nkaus li tias tsis muaj laj thawj los cuam tshuam kev kawm sab hauv combustion engine ntxiv lawm; dab tsi yuav tsum tau tawg tam sim no yog cov nqi tsim khoom ntawm cov roj teeb fais fab. Ntev npaum li qhov ceev ceev thiab cov roj teeb uas muaj nqi tsawg tuaj yeem tsim, roj teeb hluav taws xob thiab cov tsheb hluav taws xob tuaj yeem hloov ncaj qha roj tsheb;
Ua ntej no, nws tsuas yog yuav tsum tau siv cov cuab yeej siv hluav taws xob sib txuas thiab txuas txuas ntxiv kom tso cai rau lub tshuab hluav taws xob sab hauv los ua lub luag haujlwm ntawm "generator" hauv lub tsheb. Lub tshuab yuav khiav ntawm qhov qis qis thiab hloov me me ntawm lub zog hluav taws xob kom ua tau raws li qhov xav tau ntawm kev tsav tsheb ntawm lub cev muaj zog. Rau cov tsheb, hom no yog sib npaug rau kev ua kom lub thermal efficiency ntawm lub tshuab tsav mus txog cov qauv siab heev, yog li tsis tas yuav txhawj xeeb txog lub tshuab hluav taws xob sab hauv ntxiv lawm.
