Txoj kev rau xam Illumination
Illumination Calculation Method:
Luminosity (Luminosity) yog hais txog lub degree uas ib yam khoom yog illuminated, qhia los ntawm lub luminous flux tau txais ib chav tsev cheeb tsam, qhia nyob rau hauv Lux [x] (Lux, lx), uas yog, 1m / m2.
1 lux yog sib npaug rau qhov illuminance thaum lub luminous flux ntawm 1 lumen (lumen, lm) yog sib npaug ntawm thaj tsam ntawm 1m2. Lub illuminance yog raws li lub luminous flux tau txais los ntawm ntsug nto, thiab lub illuminance yuav txo yog hais tias nws yog illuminated obliquely. Kev suav ntawm illuminance Cov kev suav ntawm illuminance suav nrog kev siv coefficient, kwv yees txoj kev nkhaus, txoj kev siv hluav taws xob tshwj xeeb thiab cov txheej txheem suav ntawm point-by-point. (1) Illumination Calculation Method Utilization Coefficient Method 1. Concept of Utilization Coefficient Kev siv coefficient ntawm lub teeb pom kev zoo yog lub luminous flux projected mus rau qhov chaw ua hauj lwm (xws li cov luminous flux ncaj qha thiab cov luminous flux reflected los ntawm ntau cov lus qhia mus rau qhov chaw ua hauj lwm) thiab Nws yog sawv cev los ntawm qhov piv ntawm cov luminous flux emitted los ntawm tag nrho cov teeb qhov chaw, uas yog, u{{8}φe/nφ Lub coefficient u muaj feem xyuam rau cov nram qab no yam:
1). Nws muaj feem xyuam rau hom, lub teeb nyhuv thiab lub teeb faib nkhaus ntawm lub teeb.
2). Nws muaj feem xyuam rau qhov dai qhov siab ntawm lub teeb. Qhov siab dua qhov ncua kev kawm ntawv, qhov ntau reflected luminous flux, thiab ntau dua qhov kev siv.
3). Nws muaj feem xyuam rau thaj tsam thiab cov duab ntawm chav tsev. Qhov loj dua qhov chaw ntawm chav tsev thiab qhov ze nws yog rau ib lub xwmfab, qhov kev siv ntau dua vim qhov ncaj qha luminous flux.
4). Nws muaj feem xyuam rau cov xim thiab kev huv ntawm phab ntsa, qab nthab thiab cov plag tsev. Qhov sib zog ntawm cov xim, qhov huv ntawm qhov chaw, ntau lub teeb flux yog reflected, thiab yog li qhov kev siv ntau dua.
2. Kev txiav txim siab ntawm kev siv coefficient
Tus nqi ntawm kev siv coefficient yuav tsum tau txiav txim siab raws li qhov xav tau coefficient ntawm phab ntsa thiab qab nthab thiab lub teeb pom kev zoo ntawm chav tsev. Cov yam ntxwv ntawm qhov chaw irradiated ntawm chav tsev yog tus cwj pwm los ntawm qhov ntsuas ntawm "chav cabin tus nqi" (ua luv li RCR). Ib chav tuaj yeem muab faib ua peb qhov chaw raws li cov teeb pom kev sib txawv: sab saum toj yog qhov chaw qab nthab, qhov chaw hauv pem teb yog qis dua qhov chaw ua haujlwm, thiab qhov nruab nrab yog hu ua chav tsev. Tsis muaj qhov chaw qab nthab rau cov chav nrog qab nthab teeb lossis teeb pom kev zoo, thiab tsis muaj qhov chaw hauv pem teb rau cov chav nrog cov chaw ua haujlwm hauv av. Chav chaw piv RCR=5hRC(l plus b)/lb: qhov twg hRC{2}}chaw qhov siab; l--chav ntev; b--chaw dav. Raws li qhov kev xav coefficient ntawm phab ntsa thiab qab nthab (saib daim duab 8-1) thiab chav sib piv RCR, qhov kev siv coefficient tuaj yeem pom los ntawm cov lus sib txuas ntawm lub teeb siv coefficient.
3. xam qhov nruab nrab illuminance ntawm qhov chaw ua hauj lwm raws li txoj kev siv coefficient
Thaum lub sij hawm siv cov teeb, lub luminous efficiency ntawm lub teeb qhov chaw nws tus kheej yuav maj mam txo, cov teeb yuav qub thiab qias neeg, thiab cov phab ntsa thiab qab nthab ntawm cov illuminated qhov chaw kuj yuav stains, yog li txo cov luminous flux ntawm kev ua hauj lwm. nto, yog li nyob rau hauv lub xam ua hauj lwm Thaum xam qhov tseeb nruab nrab illuminance ntawm lub nto, ib tug "lub teeb txo coefficient" tsawg tshaj li 1 yuav tsum tau suav nrog. Yog li ntawd, qhov tseeb qhov nruab nrab illuminance ntawm qhov chaw ua haujlwm yog Eav=uKnφ/A qhov twg u____ siv coefficient; K____ dimming coefficient (tseem hu ua coefficient txij nkawm), cov nqi siv tau teev tseg hauv Table 8-3; n____ntau lub teeb; φ____ luminous flux tawm los ntawm txhua lub teeb; A____ thaj tsam ntawm chav tsev teeb pom kev zoo.
