Suav yuav ua li cas muaj ntau yam watts ib KW

Yog hais tias koj xav nyob rau hauv cov nqe lus nug ntawm yuav ua li cas muaj ntau yam watts ib KW, cov lus teb koj yuav nrhiav tau, tom qab nyeem ntawv no tsab xov xwm. Yuav ua li cas yog Watt? Qhov no unit hwj chim ntsuas txais yuav los ntawm lub International measuring system ntawm chav nyob (SI). Nws tau txais nws lub npe vim yog lub kws kho tsheb-inventor ntawm Scotch-Irish qhovntsej thiaj tsis mob James Watt, uas tau tsim ib tug universal chav engine. Kom txog rau thaum 1882 thaum feem ntau ntawm cov koom nyob rau hauv horsepower yog siv raws li lub hauv paus ntawm kev ntsuas, thiab tsuas yog tom qab lub invention mechanics qhov txhia chaw (tshwj xeeb tshaj yog nyob rau hauv hluav taws xob engineering) saws ib tug tshiab tsev ntawm lub hwj chim - watts. Nyob rau hauv physics, lub hwj chim yog lub zog noj ntawm tus txheej txheem ib chav tsev ntawm lub sij hawm, ntsig txog, yuav ua ncaj rau ib tug watt ib Joule ib ob (W = J / s).

Yuav ua li cas muaj ntau yam watts nyob rau hauv kilowatts

Cov neeg yog lossi muag nrog lub tswvyim ntawm hluav taws xob hwj chim nyob rau hauv lub tsev. Tag nrho cov khoom siv nyob rau hauv lub passport yog teem rau lub hwj chim noj. Txawm nyob rau ntawm lub elementary incandescent teeb, nyob rau hauv ib khob hwj sau .. 40 W, 60 W, 100 W, thiab lwm yam Raws li rau lub microwave qhov cub los yog ib tug tshuab ntxhua khaub ncaws, tus nqi yog hais tias yuav ntau dua: 500-1000 W thiab 2-2, 5 kW, ntsig txog. Raws li nyob rau hauv lwm yam kev tseem ceeb, lub prefix "kilo" txhais tau tias ib txhiab npaug kiag. Hais tias yog, tus zauv tus nqi ntawm lub hwj chim ntsuas nyob rau hauv kilowatts, muab los ntawm 1000 los yog txav tus zauv point mus rau sab xis kos npe rau peb tug lej tom qab: li ntawd, peb tau txais lub fais fais fab nqi nyob rau hauv watts.

Yog li, cov lus nug ntawm yuav ua li cas muaj ntau yam watts kilowatts, peb tau txais ib tug unequivocal teb: KW nyob rau hauv ib txhiab watts (1 kW = 1000 W). Ntxiv piv txwv tsom xam hluav taws xob cov ntaubntawv povthawj siv lub hwj chim. Ntawm no yog ib co piv txwv ntawm yuav ua li cas txhais tau cov qhia qhov tseem ceeb:

• 2.5 kW = 2500 watts.
• 0.2 kW = 200 watts.
• 3.095 kW = 3095 watts.

Tej zaum yuav tsum tau hwj chim unit, qhia nyob rau hauv watts, hloov dua siab tshiab rau kilowatts. Peb nco ntsoov ntau npaum li cas watts ib kilomatt yog li ntawd lub npe hu nqi faib los ntawm ib txhiab. Tog twg los ib tug tsis nco qab portable mus rau peb tug lej tom qab mus rau sab laug.

• 2750 W = 2.7 kW.
• 70 W = 0,07 kW.
• 150 W = 0.15 kW.

Cia peb xav txog xws li ib tug tshaj plaws li "kilomatt-teev"

Nyob rau hauv kilomatt teev (los yog watt teev) yog ntsuas los ntawm lub fais fais fab kev noj ib chav tsev teev. Raws li ib qho piv txwv, muab ib cov pa computer nrog ib lub hwj chim ntawm 0,65 kW. Cia peb xav hais tias nws ua hauj lwm rau ib teev xwb. Yuav ua li cas kuv thiaj paub ntau npaum li cas lub zog nws npaum thaum lub sij hawm lub sij hawm no? Heev yooj yim: 0,65 kW multiplied by 1 teev, 0,65 kWh. Li ib txwm stovattnaya filament teeb rau ib teev haus 100 watts ntawm lub hwj chim, yog li ntawd, ib hnub twg ntawm lub lag luam nruam nws yuav siv 2.4 kW. Yuav ua li cas muaj ntau yam watts kW, peb twb sib tham saum toj no.

Basic tsev neeg tau txais kev pab hluav taws xob

Tam sim no, txawm muaj myiaj neeg pib mus xav txog cov txhab zog - lawv tsis kam incandescent qhov muag thiab hloov lawv nrog yig cov qhov muag teeb los yog lub teeb-emitting diode. Thaum koj xaiv ib lub tsev kws tseem ceeb parameter, uas tshwj xeeb yog taw tes tawm ua hauj lwm zoo cov khoom siv. koj muaj peev xwm nrhiav tau xws li cov khoom nyob rau hauv txhua lub tsev los yog chav tsev, tub yees, TV, computer, hlau, hluav taws xob hwj kais. Xav txog fais fab kev noj hais units. Tub yees feem ntau ua hauj lwm nyob ib ncig ntawm lub moos, lub zog noj tus nqi yog hom twg los ntawm 0.7 mus 1.3 kW ib hnub twg - nws yuav yog nyob ntawm seb qhov loj ntawm lub ntaus ntawv thiab cov ambient kub. Khoos phib tawj, muab hais tias nws tsis tig tawm rau ib hnub twg yuav siv sijhawm txog 13,5 kW. TV tib yam nruab nrab noj ntawm 2.5 kW rau 24 teev. Txawm li cas los, lub biggest "spenders" yog yeej ua cua sov: hluav taws xob kettles, cua sov siv dej, hluav taws xob cookers thiab lwm tus neeg. Piv txwv li, ib tug hluav taws xob hwj kais rau 20-25 feeb kov 1-1.2 kW, uas yuav muab piv nrog rau cov tsis tu ncua ua hauj lwm tub yees. Thiab ntau npaum li cas zog koj siv?