Kev suav cov mis thiab cov ntaub ntawv tsom xam ntawm sab nraum zoov teeb pom kev zoo illuminance
Lub teeb siv lub teeb, tseem hu ua "illuminance", yog lub ntsiab lus ntawm lub cev uas hais txog lub luminous flux tau txais los ntawm ib qho khoom hauv ib cheeb tsam. Unit yog lux. Illuminance yog qhov tseem ceeb tshaj plaws yam ntxwv ntawm ib puag ncig tej yam kev mob uas yuav tsum tau rau cov nroj tsuag kab mob los ua photosynthesis thiab accumulate organic teeb meem ceev thiab efficiency. Cov qoob loo sib txawv teb qhov sib txawv ntawm lub teeb siv, thiab tib hom qoob loo teb txawv rau qhov sib txawv ntawm qhov sib txawv ntawm kev loj hlob thiab kev loj hlob theem.
Illumination siv yog hais txog lub zog ntawm lub teeb pom kev tau txais ib cheeb tsam, hu ua illuminance, thiab chav tsev yog Lux (Lux lossis Lx). Lub sij hawm siv lub cev siv los qhia qhov kev siv ntawm lub teeb thiab qhov degree uas qhov chaw ntawm qhov khoom yog illuminated. Nyob rau hauv photometry, "luminosity" yog qhov ceev ntawm luminous siv nyob rau hauv ib tug muab kev taw qhia, tab sis feem ntau misinterpreted li illuminance. Lub thoob ntiaj teb chav tsev ntawm illuminance yog lub teeb tswm ciab tau txais ib square meter (mainland Tuam Tshoj, Hong Kong thiab Macao hu ua candela).
case tsom! Dab tsi yog tus qauv teeb pom kev zoo rau lub rooj cob qhia steel nrog qhov ntev ntawm 136 meters, dav ntawm 22 meters, thiab qhov siab ntawm 20 meters? Nws suav li cas? Kev suav cov qauv ntawm illuminance: nruab nrab illuminance (Eav)=tag nrho cov luminous flux ntawm lub teeb qhov chaw (N * Ф) * utilization factor (CU) * tu factor (MF) / cheeb tsam cheeb tsam (㎡)
(Zoo rau sab hauv tsev lossis chaw ncaws pob teeb pom kev lag luam) Kev siv qhov tseem ceeb: {{0}}.4 rau kev siv sab hauv tsev, 0.3 rau kev ua kis las siv Cov Khoom Siv Kho: 0.{{5 }}.8 rau kev siv dav dav Piv txwv li: Sab hauv teeb pom kev zoo: 4 × 5m chav tsev, 9 teeb ntawm 3 × 36W grille teeb yog siv, Nruab nrab illuminance=tag nrho luminous flux ntawm lub teeb ci × CU × MF / cheeb tsam {{13 } } (2500 × 3 × 9) × 0.4 × 0.8 ÷ 4 ÷ 5=1080 Lux Conclusion: qhov nruab nrab illuminance yog siab dua 1000 Lux. Illumination siv yog hais txog lub zog ntawm lub teeb pom kev tau txais ib cheeb tsam, hu ua illuminance, thiab chav tsev yog Lux (Lux lossis Lx). Lub sij hawm siv lub cev siv los qhia qhov kev siv ntawm lub teeb thiab qhov degree uas qhov chaw ntawm qhov khoom yog illuminated.
Txoj kev suav ntawm illuminance Kev xam qhov nruab nrab illuminance los ntawm txoj kev coefficient
Nruab nrab illuminance (Eav) {{0}} tag nrho luminous flux ntawm lub teeb qhov chaw (N * Ф) * utilization factor (CU) * Maintenance factor (MF) / cheeb tsam cheeb tsam (m2) (muaj feem xyuam rau sab hauv tsev los yog chaw ntau pob teeb pom kev zoo xam) kev siv yam khoom siv: 0.4 rau sab hauv tsev, Siv 0.3 raws li kev saib xyuas: feem ntau siv 0.7 ~ 0.8]
Piv txwv 1: Sab hauv teeb pom kev zoo: 4 × 5m chav tsev, siv 9 teeb ntawm 3 × 36W grille teeb Nruab nrab illuminance=tag nrho cov luminous flux ntawm lub teeb ci × CU × MF / cheeb tsam=(25{{11} }0 × 3 × 9) × 0.4 × 0.8 ÷ 4 ÷{16}} Lux
Cov ntsiab lus: Qhov nruab nrab illuminance yog siab dua 1000Lux Piv txwv 2: Stadium teeb pom kev zoo: 20 × 40m venue, siv 60 teeb ntawm POWRSPOT 1000W hlau halide teeb
Qhov nruab nrab illuminance {{0}}} tag nrho luminous flux ntawm lub teeb qhov chaw × CU × MF / cheeb tsam=(105000 × 60) × 0.3 × 0.8 ÷ 20 ÷ {{9} } Lux
Cov ntsiab lus: Qhov nruab nrab ntawm qhov teeb pom kev zoo yog siab dua 1500Lux. Qhov nruab nrab illuminance tsim rooj plaub ntawm chaw ua haujlwm:
Cov qauv tsim: Qhov ntev ntawm lub chaw ua haujlwm yog 18.2 meters, qhov dav yog 10.8 meters, qhov siab ntawm lub qab nthab yog 2.8 meters, qhov siab ntawm lub desktop yog 0.85 meters, lub kev siv coefficient yog 0.7, kev saib xyuas coefficient yog 0.8, thiab cov roj teeb yog 33 teeb. Qhov nruab nrab illuminance nyob rau hauv lub chaw ua hauj lwm yog dab tsi? Teeb pom kev zoo: DiNiT 2X55W anti-glare daylight teeb yog siv rau lub teeb, nrog lub luminous flux ntawm 3000Lm, xim kub ntawm 3000K, thiab xim rendering ntawm Ra90 los yog siab dua. Nws tuaj yeem tau txais raws li cov qauv:
Eav {{0}} (33 sets X 6000Lm X 0.7 X 0.8) ÷ (18.2m X 10.8m)=110880.00 ÷ 196.56 m{ {15}}.10Lux Remarks:
Kev tsim teeb pom kev zoo yuav tsum xav tau kev siv qhov tseeb, txwv tsis pub yuav muaj qhov sib txawv loj, uas yuav cuam tshuam rau qhov loj ntawm qhov kev siv. Muaj cov ntsiab lus hauv qab no: * Lub teeb faib nkhaus ntawm lub teeb * Lub teeb tso zis piv ntawm lub teeb * Sab hauv tsev, xws li Qab nthab, phab ntsa, rooj ua haujlwm, thiab lwm yam. * Sab hauv qhov ntsuas qhov loj
