Video: Koj xam cov teeb pom kev zoo li cas?
2024 Tus sau: Taylor Roberts | [email protected]. Kawg hloov kho: 2023-12-16 00:29
Thaum koj pom ob tus lej no, tsuas yog faib cov lej ntawm lumens los ntawm tus lej ntawm watts. Uas yuav muab koj tus qauv ntsuas ntawm teeb pom kev zoo , uas yog lumens ib watts. Nws yog qhov zoo tshaj los siv lub wattage tiag tiag ntawm noob , tsis yog qhov hu ua "equivalency" tus nqi.
Hais txog qhov no, lub teeb siv hluav taws xob ntau npaum li cas?
Ib kilowatt-teev yog 1,000 watts siv rau ib teev. Asanexample, lub teeb 100-watt noob ua haujlwm rau kaum teev yuav siv ib kilowatt-teev. Hauv qab no yog qee qhov piv txwv ntawm cov khoom siv hluav taws xob muaj nyob hauv ntau lub tsev. Cov piv txwv no yog siv 10 cents per kWh tus nqi.
Ib sab saum toj no, nws raug nqi ntau npaum li cas rau teeb lub teeb rau ib xyoos? Kev sib piv ntawm LED, CFL thiab Incandescent Lub Teeb:
| LED | Teeb | |
|---|---|---|
| Lub neej nyob hauv teev | 10, 000 | 1, 000 |
| Watts (sib npaug 60 watts) | 10 | 60 |
| Nqi ib lub teeb | $2.50 | $1.25 |
| Tus nqi txhua hnub* | $0.005 | $0.03 |
Ntawm no, qhov ua tau zoo ntawm LED teeb lub teeb yog dab tsi?
Feem ntau muaj txiaj ntsig lag luam muaj LED teeb muaj qhov ua tau zoo ntawm 200 lumens perwatt (Lm/W).
Yuav ua li cas 100 lub teeb pom kev zoo ua tau?
Nyob rau hauv qhov tseeb, yog tias koj txo cov input zog txaus, lub LED lub efficiency tuaj yeem nce mus rau ntau tshaj 100 feem pua, yog li ua tiav qhov hu ua unity kev ua tau zoo ” Thaum ua li ntawd, lub teeb lub teeb tsim kom muaj zog los yog ntau dua li nws yuav siv zog rau nws, muab qhov kawg rau koj cov nyiaj.
Pom zoo:
Koj ua li cas xam cov teeb pom kev hauv chav?
Teeb pom kev zoo - Cov ntsiab lus xam cov lumens koj xav tau. Muab cov cheeb tsam hauv square metres los ntawm lux, lossis thaj tsam hauv square feet los ntawm footcandles. ua hauj lwm seb muaj pes tsawg qhov muag teev koj xav tau. Faib tus naj npawb ntawm lumens los ntawm tus naj npawb ntawm lumens xa los ntawm txhua lub teeb
Koj xam xam lux thiab lumens li cas?
1 lx = 1 lm/mm2. 1 Lumen ib Square Meter: Lumen ib square meter sib npaug rau Lux (SI unit). Kev ntsuas tus naj npawb ntawm Lumens poob ntawm thaj tsam ntawm ib square meter, lub ntsiab lus ntawm Lux
Dab tsi yog qib pom kev teeb pom kev zoo rau kev ua haujlwm hauv chaw ua haujlwm?
Lub teeb pom kev sab nraum zoov yog kwv yees li 10000 lux nyob rau hnub pom tseeb. Hauv ib lub tsev hauv cheeb tsam ze rau ntawm lub qhov rais, lub teeb ci tuaj yeem txo qis mus rau kwv yees li 1000 lux. Hauv nruab nrab cheeb tsam nws yuav qis li 25 - 50 lux. Sab hauv tsev teeb theem. Kev Ua Haujlwm Teeb pom kev zoo (lx, lumen / m2) Kev ua haujlwm yooj yim 250 Chav Chav 300
Koj xam xam qhov nruab nrab qhov pom kev li cas?
Qhov nruab nrab qhov ci ntsa iab a = ntev ntawm chav nyob hauv meters; b = dav ntawm cheeb tsam hauv meters; h = nrug deb ntawm qhov nruab nrab ntawm cov teeb pom kev zoo thiab lub dav hlau uas koj yuav tsum ntsuas lub teeb pom kev zoo (piv txwv li qhov siab ntawm cov teeb pom kev zoo 2.80 m, qhov chaw ua haujlwm ntawm qhov siab 0.8 m, h = 2.80 txog 0.8 = 2)
Yuav ua li cas lux qib xam rau txoj kev teeb pom kev zoo?
Qhov Nruab Nrab Lux Qib ntawm Txoj Kev Teeb yog ntsuas los ntawm 9 point method. Ua ob qhov sib npaug sib npaug nruab nrab ntawm ob txoj kev teeb pom kev. Peb muaj 3 ntsiab lus P1, P2 thiab P3 nyob rau hauv lub teeb ncej ces P4 & P7 yog cov ntsiab lus opposite ncej 1 los yog Point P3 tib yam muaj feem xyuam rau P6 thiab P9 rau ncej 2