Hwj chim rau lwm. DC hwj chim: chav tsev

Hwj chim nyob rau hauv physics yog to taub raws li tus piv tiav nyob rau hauv ib tug tej lub sij hawm ntawm lub lag luam mus rau lub sij hawm ntawm lub sij hawm uas nws yog ua. Nyob rau hauv txhua yam kev ua hauj lwm yog meant cov quantitative tivthaiv tej yam quab yuam nyob rau hauv lub cev, vim uas rau tom kawg tsiv nyob rau hauv qhov chaw.

Koj muaj peev xwm qhia lub hwj chim thiab raws li tus nqi ntawm lub zog hloov lwm lub tsev. Hais tias yog, nws qhia tau hais tias cov efficiency ntawm tus automatic tshuab. Ntawm xab lub hwj chim nws yuav ntshiab yuav ua li cas lub chaw ua hauj lwm yog ua li cas sai sai.

Fais fab kev ntsuas tsev

Fais fab yog ntsuas nyob rau hauv watts los yog joules ib ob. Neeg tsav tsheb paub hwj chim ntsuas nyob rau hauv horsepower. Los ntawm txoj kev, ua ntej lub advent ntawm chav xyaw cov nqi no yog tsis ntsuas ntawm tag nrho cov.

Muaj ib hnub, siv cov mechanism ntawm cov mine, lub engineer George. Dawb coj nws txoj kev txhim kho. Los ua pov thawj nws cav txhim kho nws piv nws nrog rau kev ua tau zoo ntawm cov nees. Cov neeg tau siv lawv rau centuries. Yog li ntawd leej twg yog ib qho yooj yim mus xav txog tej yam lub chaw ua hauj lwm ntawm cov cua ntsawj ntshab nees rau ib tug tej lub sij hawm ntawm lub sij hawm.

Saib lawv, Dawb piv cov qauv chav xyaw, nyob ntawm seb tus nqi ntawm cov horsepower. Nws experimentally xam hais tias ib tug nees hwj chim yog 746 watts. Niaj hnub no, txhua leej txhua tus yog convinced hais tias qhov no tus xov tooj yog kom meej meej overpriced, tab sis lub hwj chim tsev txiav txim siab tsis tau hloov.

Los ntawm txoj kev hais tias lub cev muaj nuj nqis kawm txog cov kev ua tau zoo, txij li thaum nws yuav tsub kom lub chaw ua hauj lwm nce rau tib lub sij hawm ntawm lub sij hawm. Xws li ib tug kev unit ntawm kev ntsuas tau ua heev heev. Nws pib yuav tsum tau siv nyob rau hauv ib tug ntau yam ntawm mechanisms. Yog li ntawd, txawm yog hais tias tus watts thiab tau tau muab siv rau ib tug ntev lub sij hawm, rau ntau horsepower nws yog ntau to taub tshaj rau lwm hwj chim rau lwm.

Yuav ua li cas to taub lub hwj chim nyob rau hauv tsev neeg hluav taws xob khoom siv

Lub hwj chim, ntawm chav kawm, qhia thiab tsev neeg hluav taws xob machinery. Nyob rau hauv lub teeb siv nws tej qhov tseem ceeb, piv txwv li rau caum watts. Qhov muag teev nrog ib tug loj kev ntsuas ntawm lub hwj chim los tsim kom muaj yog hais tias nws yog tsis yooj yim sua, vim hais tias txwv tsis pub lawv yuav sai sai deteriorate. Tab sis yog hais tias koj tsis yuav ib incandescent teeb, thiab LED los yog fluorescent, lawv yuav tsum tau mus ci nrog ntau dua cov brightness, thaum haus me ntsis hwj chim.

zog noj, ntawm chav kawm, yog ncaj qha proportional rau tus nqi ntawm lub hwj chim. Yog li ntawd, rau manufacturers ntawm cov qhov muag teeb yog ib txwm ib tug teb rau cov khoom txhim kho. Tam sim no, tau txais kev pab xav lwm yam kev xaiv, tsuas yog rau incandescent teeb.

Kev ua si nawv hwj chim

hwj chim ntsuas rau lwm cov paub tsis tau tsuas yog nyob rau hauv kev twb kev txuas nrog cov kev siv ntawm mechanisms. Lub tswvyim ntawm lub hwj chim muaj peev xwm yuav ntaus nqi mus rau cov tsiaj thiab rau tib neeg. Piv txwv li, cov nqi no yuav tsum xam thaum lub kis las cuam pob los yog lwm yam khoom siv kom tau nws raws li ib tug tshwm sim ntawm lub tsev lag luam ntawm lub applied quab yuam, deb li cas thiab lub sij hawm ntawm nws daim ntawv thov.

Koj muaj peev xwm txawm siv computer programs uas Performance index yog xam raws li ib tug tshwm sim ua ib qhov nqi ntawm kev qoj ib ce thiab cov kev taw qhia ntawm tsis.

ntsuas seev

Dynamometer - ib tug tshwj xeeb ntaus ntawv los ntawm lub hwj chim uas yog ntsuas. Lawv kuj siv los mus txiav txim tus quab yuam thiab lub zog. Cov kev ntsuas yog siv nyob rau hauv ib tug ntau yam ntawm industries. Piv txwv li, lawv qhia tias cov hwj chim ntawm lub cav. Ua li no, lub cev muaj zog yog muab tshem tawm los ntawm lub tsheb thiab kev cob cog rua rau ib tug dynamometer. Tab sis muaj pab kiag li lawm uas yuav tau xam yuav tsum tau txawm los ntawm lub log.

Nyob rau hauv cov kev ua si tshuaj thiab dynamometers kuj ntau. Simulators feem ntau muaj sensors uas yog kev cob cog rau lub computer. Nrog lawv, thiab ua tag nrho cov kev ntsuas.

wattage

James Watt invented lub chav engine, thiab txij li thaum 1889, ib qho kev ntsuas ntawm lub hwj chim ntawm lub fais tam sim no los ua watts, thiab thoob ntiaj teb system ntawm kev ntsuas tus nqi muaj nyob rau hauv 1960.

Nyob rau hauv watts yuav ntsuas tsis tau tsuas yog hluav taws xob, tiam sis kuj thermal, neeg kho tshuab los yog lwm yam lub hwj chim. Nws yog feem ntau kuj tsim cov zauv thiab sub-zauv. Lawv hu nrog rau qhov sib ntxiv mus rau tus thawj lo lus sib txawv tsiaj ntawv ua pib "kilo", "mega" "giga", thiab lwm yam.:

• 1 kilomatt sib npaug ib txhiab watts;
• MW 1 lab watts sib npaug zos thiab thiaj li nyob.

Kilowatt teev

Nyob rau hauv lub thoob ntiaj teb SI system yog tsis muaj Ntsuas units zoo li kilomatt-teev. Qhov no xam yog nyob sab nraum lub cev, qhia rau dab tsi rau cov noj hluav taws xob. Nyob rau hauv Russia nws ua hauj lwm nrog GOST 8.417-2002 kev cai nyob qhov twg lub tsev hwj chim ntsuas ntawm lub fais tam sim no thiab thov ncaj qha xws.

Qhov no unit yog pom zoo rau cov ntawv sau npe ntawm noj hluav taws xob. Nws yog lub feem ntau yooj yim rau daim ntawv, uas tsim tau tau. Zauv no kuj siv tau yog tias tsim nyog. Lawv saib zoo li watts:

• 1 kilomatt teev yog 1000 Coj;
• 1 megawatt-teev sib npaug 1,000 kilomatt-teev, thiab hais txog.

Tag nrho cov npe yog sau, raws li twb tau pom, nrog ib tug hyphen, thiab lub luv luv - los ntawm tus taw tes (Coj, kWh).

Raws li tau hais nyob rau hauv hluav taws xob

Nws yog feem ntau txais yuav qhia tau hais tias qhov taw qhia ncaj qha rau ntawm lub vaj tse ntawm lub fais cuab tam. designations yog tau:

• watt thiab kilomatt;
• Coj thiab kilomatt-teev;
• Volt-Amps thiab Kva.

Qhov tseem universal lub cim yog kev siv ntawm tej chav nyob raws li watts los yog kilowatts. Yog hais tias tej no yuav muab ua rau lub tsev xaus lus tias lub hwj chim no yog tsim nyob rau hauv cov khoom no.

Feem ntau nyob rau hauv watts thiab kilowatts ntsuas txhua yam hwj huam fais generators thiab motors, thermal hwj chim hluav taws xob tso cua sov thiab thiaj li nyob. D. Yog hais txog mas tam sim no hwj chim unit nyob rau hauv lub ntaus ntawv uas yog teem feem ntau nyob rau hauv tus nqi ntawm cov generated thaum tshav kub kub, thiab cov lus teb yog npaum li cas mus rau hauv tus account twb tom qab nws.

Watt-teev thiab kilomatt-teev qhia lub hwj chim noj rau ib tug muab chav tsev ntawm lub sij hawm. Feem ntau cov designations yuav pom nyob rau hauv tsev neeg hluav taws xob khoom siv.

Nyob rau hauv lub thoob ntiaj teb SI system muaj hluav taws xob hwj chim rau lwm, uas yog sib npaug rau watts thiab kilowatts - ib tug volt-amperes thiab KVA. Xws li ib tug kev ntsuas muab rau cov kev nyeem ntawv ntawm AC fais fab. Lawv yog siv nyob rau hauv kev suav thaum tseem ceeb hluav taws xob tsis.

Tej ntawv zoo tshaj plaws haum yuav tsum hluav taws xob engineering, qhov twg pab kiag li lawm uas ua hauj lwm nrog alternating tam sim no, muaj ob yam kom nquag plias thiab reactive zog. Yog li ntawd, hluav taws xob lub hwj chim yog txiav txim los ntawm lub sum ntawm cov Cheebtsam. Feem ntau nyob rau hauv VA txhais hwj chim pab kiag li lawm xws li transformers, inductors, thiab lwm yam converters.

Nyob rau tib lub chaw tsim tshuaj paus Xaiv uas units ntawm kev ntsuas mus qhia nws, qhov ntau nyob rau hauv cov ntaub ntawv ntawm tsawg-hwj chim khoom (uas yog, piv txwv li, tsev neeg hluav taws xob khoom siv), tag nrho peb designations yuav coincide.