Mukakonzekera kuyatsa kwanyumba, funso limodzi lalikulu kwambiri ndilakuti: Kodi magetsiwo agwiritsa ntchito mphamvu zingati? Apa ndipamene Lighting Power Density (LPD) imabwera. Ganizirani ngati chikwangwani pamapangidwe anu owunikira. Zimasonyeza kuchuluka kwa mphamvu zamagetsi zomwe zimagwiritsidwa ntchito powunikira pa phazi limodzi (kapena lalikulu mita) la malo.
N’chifukwa chiyani zimenezi zili zofunika? Chifukwa kugwiritsa ntchito mphamvu kwamphamvu sikungokhudza kusunga ndalama pabilu yanu yogwiritsira ntchito - ndikukumana ndi ma code omanga, kulimbikitsa kukhazikika, komanso kuwongolera chitonthozo kwa anthu omwe amagwiritsa ntchito malowo. Malingana ndi US Department of Energy (DOE), kuyatsa kumatha kuwerengera mpaka 17% ya mphamvu zonse zomwe zimagwiritsidwa ntchito m'nyumba zamalonda, kutanthauza kuti watt iliyonse yosungidwa imapangitsa mphamvu yoyezera. Kuchepetsa kuchuluka kwa mphamvu zanu zowunikira (popanda kutulutsa kuwala), m'pamenenso mapangidwe anu amakhala opambana.
Mu bukhuli, tifotokoza zomwe LPD ikutanthauza, momwe imawerengedwera, miyeso yomwe muyenera kudziwa, ndi malangizo othandiza kuti musamalire. Kaya ndinu katswiri wa zomangamanga, womanga nyumba, kapena wina wongofuna kudziwa zambiri za kapangidwe ka mphamvu zamagetsi, bukhuli likupatsani kufotokozera momveka bwino komanso kosavuta popanda mawu.
Kodi Kuchulukana Kwa Mphamvu Zowunikira ndi Chiyani?
Lighting Power Density, yomwe nthawi zambiri imafupikitsidwa ngati LPD, ndi muyeso wa mphamvu yamagetsi yomwe imagwiritsidwa ntchito ndi njira yowunikira mogwirizana ndi malo omwe amawunikira. M'mawu osavuta, ndi ma watts pa sikweya mita (kapena masikweya mita) omwe amachititsa kuti danga likhale loyaka.
M'malo mongoyang'ana kuchuluka kwa mababu omwe mumayika kapena momwe chipinda chimamvekera bwino, LPD imakupatsani njira yomveka bwino, yotengera manambala kuti mumvetsetse kugwiritsa ntchito mphamvu zamagetsi. Mwachitsanzo, ngati maofesi awiri ali ndi kuwala kofanana koma imodzi imagwiritsa ntchito theka la mphamvu, mphamvu zake zowunikira zimakhala zochepa, zomwe zikutanthauza kuti ndizopambana.
Ma Code & Standards Governing LPD
Kachulukidwe ka Mphamvu Yowunikira sikungosankha kupanga; ndi chinthu chomwe chimayendetsedwa ndi malamulo omanga ndi miyezo yamagetsi padziko lonse lapansi. Zizindikirozi zimayika kuchuluka kwa mphamvu zowunikira zomwe zingagwiritsidwe ntchito pa malo operekedwa, kuonetsetsa kuti mapulojekiti akugwira ntchito moyenera.
Zina mwazofunikira kwambiri ndizo:
MALO 90.1
Chimodzi mwa zizindikiro zomwe zimagwiritsidwa ntchito kwambiri ku US, zomwe zinapangidwa ndi American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), zimapereka malire enieni a LPD amitundu yosiyanasiyana ya malo, kuchokera kumaofesi ndi m'makalasi kupita ku malonda ndi nyumba zosungiramo katundu.
International Energy Conservation Code (IECC)
IECC imagwira ntchito limodzi ndi ASHRAE, kukhazikitsa zofunikira zofananira pomwe ikugwiritsa ntchito njira yakeyake. Ulamuliro wa m'dera lanu nthawi zambiri umatenga imodzi kapena onse awiri, kotero kuwunika komwe kumagwira ntchito m'dera lanu ndikofunikira.
LEED Certification
Ngakhale sichofunikira mwalamulo, bungwe la US Green Building Council (USGBC) limapereka mphotho chifukwa chowunikira bwino. Kusunga LPD yanu yotsika kumathandizira kuti mupeze chiphaso cha LEED certification, malo ogulitsa nyumba zokhazikika.
Makhodi Achigawo & adziko
Kunja kwa US, mayiko ambiri ali ndi malamulo awoawo. UK ikutsatira Gawo L la Zomangamanga, mothandizidwa ndi Chartered Institution of Building Services Engineers (CIBSE). EU imagwiritsa ntchito Energy Performance of Buildings Directive, yomwe ikugogomezera kuchepetsa kugwiritsa ntchito mphamvu m'nyumba, kuphatikizapo kuyatsa.
Izi zimatsimikizira kuti nyumba sizikuwononga mphamvu. Kwa okonza mapulani, omanga mapulani, ndi makontrakitala, kukwaniritsa malire oyenera a LPD ndi nkhani yotsata komanso mwayi wowonetsa mapangidwe anzeru.
Momwe Mungawerengere LPD
Fomula ya LPD
Njira yoyambayo ikuwoneka motere:
LPD = Mphamvu Zonse Zounikira (Watts) ÷ Dera la Space (Square Feet kapena Square Meters)
Chifukwa chake mukayika zowunikira zomwe zimawonjezera ma watts 2,000 muofesi ya 1,000-square-foot, LPD yanu ingakhale:
2,000 ÷ 1,000 = 2.0 W/ft²
Kutsika kwa chiwerengerocho, ndizomwe zimapangidwira bwino kwambiri zowunikira.
Njira ya Space-by-Space
Njirayi imaphwanya nyumba kukhala malo amodzi (monga maofesi, zipinda zochitira misonkhano, malo ochezeramo, ndi zimbudzi). Malo aliwonse ali ndi malire akeake a LPD, monga momwe zafotokozedwera mumiyezo monga ASHRAE 90.1.
Chitsanzo:
- Malo otsegulira maofesi (500 ft²) - Max amaloledwa LPD: 0.82 W/ft²
- Chipinda chamisonkhano (200 ft²) - Max wololedwa LPD: 1.08 W/ft²
- Khola (300 ft²) - Max wololedwa LPD: 0.66 W/ft²
Mumawerengera danga lililonse padera, ndikuonetsetsa kuti mapangidwe anu enieni akukhala mkati mwa malirewo. Njirayi ndi yowonjezereka komanso yosinthika, makamaka kwa nyumba zosakanikirana.
Njira Yomanga Malo
Njira yomanga malo ndi yosavuta. M'malo mowerengera chipinda chilichonse, mumapereka malire a LPD ku mtundu wonse wanyumba (monga ofesi, ritelo, kapena sukulu).
Chitsanzo:
- Nyumba yamaofesi (10,000 ft²) - Max yololedwa LPD: 0.90 W/ft²
- Chifukwa chake, mphamvu zonse zololedwa zowunikira = 10,000 × 0.90 = 9,000 watts
Njirayi ndiyothandiza kwambiri pamitundu yowongoka yomanga yokhala ndi kusiyana kochepa kwa malo.
Chifukwa Chake LPD Imafunika Pamapangidwe Owunikira
Kuchuluka kwa Mphamvu Zowunikira si nambala chabe papepala; zimapanga mmene nyumba zimaonekera, mmene zimamvekera, ndi mmene zimagwirira ntchito. Mukalabadira LPD panthawi yopanga, mukuchita zambiri kuposa kukumana ndi ma code. Mukupanga zisankho zanzeru zomwe zimakhudza mtengo, chitonthozo, ndi kukhazikika.
Kugwiritsa Ntchito Mphamvu ndi Kusunga Mtengo
A DOE akuyerekeza kuti kusintha kuchokera ku kuyatsa kwachikhalidwe kupita LEDs amatha kuchepetsa kugwiritsa ntchito mphamvu ndi 50-70%. Lower LPD mwachindunji amatanthauza ndalama zotsika mtengo, ndipo pa moyo wa nyumba, izi zitha kupulumutsa masauzande a madola.
Phunziro la Mlanduwu:
Kubwezeretsedwanso kwa 2019 kwa ofesi ya 20,000 ft² ku Chicago kunasintha zosintha za fulorosenti ndi ma LED ndikuwonjezera masensa okhalamo. Pulojekitiyi inachepetsa LPD yake kuchoka pa 1.2 W/ft² kufika pa 0.75 W/ft², zomwe zinapangitsa kuti mtengo wamagetsi uchepetse pafupifupi 35% pachaka komanso kupititsa patsogolo kuyatsa kwa ogwira ntchito.
Kutsata Code
Miyezo monga ASHRAE 90.1 ndi IECC imafuna malire enieni a LPD. Kusatsatira kungathe kuchedwetsa zilolezo kapena kuonjezera ndalama. Kuwunikiranso zofunikira izi koyambirira kumapewa kukonzanso mutu.
Kutonthoza ndi Kuchita bwino
Kuunikira sikungokhudza kuwala kokha, komanso momwe anthu amawonera danga. LPD yokhazikika imatsimikizira maofesi abwino, misewu yotetezeka, komanso malo ogulitsa oitanira.
Sustainability ndi Green Building
Ma projekiti omwe akufuna certification ya LEED (USGBC) kapena kuzindikira kofananira kumapindula mwachindunji ndikuchita bwino kapangidwe kowunikira. Kutsitsa LPD kumachepetsa kuchuluka kwa kaboni ndipo kumathandizira kukulitsa zolinga zamabizinesi.
Mtengo Wanthawi Yaitali
Nyumba yomangidwa ndi LPD yoyenera ndi umboni wamtsogolo. Pamene mitengo yamagetsi ikukwera komanso miyezo yogwira ntchito bwino ikukulirakulira, mapulojekiti omwe akugwira ntchito kale pamlingo wochepa wa LPD azikhala ogwirizana komanso opikisana.
Zofunikira za LPD Pamapulogalamu Osiyanasiyana
Sikuti malo onse amafunikira kuyatsa kofanana. Ofesi yabata simafuna kuwala kofanana ndi sitolo kapena chipinda chachipatala. Ichi ndichifukwa chake zizindikiro zowunikira, monga ASHRAE 90.1 ndi IECC, zimayika malire osiyanasiyana a LPD kutengera mtundu wa malo kapena nyumba.
Nayi chidule cha mapulogalamu omwe wamba komanso zofunikira zawo za LPD (mitengo ndi pafupifupi ndipo imasiyana malinga ndi ma code):
Maofesi
- Maofesi Otsegula: ~ 0.82 W/ft²
- Maofesi Apadera: ~ 0.90 W/ft²
Cholinga chake apa ndikukhazikitsa malire pakati pa kupulumutsa mphamvu ndi kuwala kokwanira pa ntchito ya pakompyuta ndi misonkhano.
Malo Ogulitsa
- Malo Ogulitsa: ~ 1.2 W/ft²
- Mawonekedwe apadera: akhoza kulola malire apamwamba
Malo ogulitsa amafunikira kuunikira kochulukirapo kuti awonetsere malonda ndikupanga malo osangalatsa bwino, kotero kuti malipiro amakhala apamwamba.
Education
- Makalasi: ~ 0.99 W/ft²
- Nyumba Zophunzirira: ~ 1.1 W/ft²
Mipatayi imayika patsogolo kuwonekera powerenga, kulemba, ndi mafotokozedwe popanda kuwononga mphamvu.
Chisamaliro chamoyo
- Zipinda za Odwala: ~ 1.0 W/ft²
- Zipinda Zogwirira Ntchito: 1.5–2.0 W/ft²
Zipatala zimafunika kupangidwa mosamala - kuunikira kowala, kolondola kwa ntchito zachipatala ndikuwonetsetsa kuti odwala atonthozedwe.
kuchereza
- Zipinda za Alendo hotelo: ~ 0.68 W/ft²
- Malo Othandizira & Zipinda Zogwirira Ntchito: 1.0–1.2 W/ft²
Chitonthozo cha alendo ndichofunika kwambiri, kotero kuti malowa amagwiritsa ntchito kuwala kozungulira kozungulira komanso kokongoletsa pomwe akukhala osagwiritsa ntchito mphamvu.
Ma Corridors & Malo Othandizira
- Makolo, Zipinda Zosungirako, Malo Omangirira: 0.5–0.7 W/ft²
Popeza madera amenewa safuna kuunikira mkulu, zizindikiro amaika malire kuchepetsa kuwononga mphamvu.
Njira Zothandiza Zochepetsera ndi Kukulitsa LPD
Kuchepetsa Kuchuluka kwa Mphamvu Zowunikira sikutanthauza kusiya chitonthozo kapena kuwala. Mwa kuphatikiza ukadaulo waluso ndi mapangidwe oganiza bwino, mutha kupanga malo owala bwino omwe amakwaniritsa zofunikira zamakhodi, kusunga ndalama, ndikuwonjezera luso la ogwiritsa ntchito.
1. Yambani ndi Smart Layout
Konzani zoyika bwino kuti muchepetse kuphatikizika komanso kupewa kuyatsa mopitilira muyeso. Yang'anani zowunikira komwe kukufunika kwambiri, monga malo ogwirira ntchito kapena zowonetsera, m'malo modzaza zipinda zonse zowala mofanana. Kukonzekera kokonzedwa bwino kumachepetsa mphamvu zowonongeka komanso kumapangitsa kuti nyumbayo ikhale yokongola komanso yogwira ntchito.
2. Sankhani Zokonza Mwapamwamba
Zowunikira za LED ziyenera kukhala zosankha zanu. Amapereka ma lumens apamwamba pa watt kuposa zosankha zachikhalidwe, amakhala nthawi yayitali, ndikutsitsa mwachindunji LPD yanu. Yang'anani malonda omwe ali ndi mphamvu zambiri (lm/W) ndi Energy Star kapena DLC certification. Ma LED amakono amaperekanso luso lowonetsera bwino komanso kufinya, kupititsa patsogolo kusinthasintha kwa mapangidwe.
3. Yalani Kuunikira Kwanu
Gwiritsani ntchito kusakaniza kozungulira, ntchito, ndi kuunikira kwa mawu. Kuunikira kwanthawi zonse kumatha kukhala kocheperako ngati kuthandizidwa ndi cholinga magetsi a ntchito ndi mawu okongoletsa. Njirayi imatsimikizira chitonthozo chowoneka ndikuchepetsa ma watts otayika. Kuunikira kowunjika kumapangitsanso kumverera, kumapangitsa kuti magwiritsidwe ntchito, komanso kusinthana bwino ndi zochitika zosiyanasiyana mkati mwa danga.
4. Phatikizanipo Kuunika kwa Masana
Limbikitsani kuwala kwachilengedwe kudzera m'mawindo, ma skylights, kapena mashelufu owala. Gwirizanitsani kuwala kwa masana ndi masensa odziwikiratu kuti kuyatsa kopanga kuzimiririka kapena kuzimitsa pakakhala kuwala kokwanira kwa dzuwa. Izi zitha kuchepetsa kwambiri mphamvu zamasana. Kuphatikiza apo, kuwala kwa masana kumapangitsa kuti anthu azikhala ndi moyo wabwino powonjezera zokolola, kuchepetsa kupsinjika kwa maso, komanso kukulitsa malo okhala m'nyumba.
5. Onjezani Zowongolera Zanzeru
Kuwongolera kumalepheretsa kuwononga mphamvu komanso kumathandizira kukhalabe ndi LPD yochepa pakugwiritsa ntchito tsiku ndi tsiku:
- Masensa okhalamo muzimitsa magetsi m'malo opanda anthu.
- Zimachepetsa sinthani milingo ya kuwala ku zosowa zenizeni.
- Timers onetsetsani kuti machitidwe atsekedwa pambuyo pa maola.
Ukadaulo uwu sikuti umangochepetsa ndalama zoyendetsera ntchito komanso umapangitsa kuti pakhale kukhazikika, nthawi zambiri amadzilipira okha pakanthawi kochepa.
6. Chongani Code Zofunika Poyambirira
Unikaninso ASHRAE 90.1, IECC, kapena ma code amdera lanu panthawi yopanga. Kukhala mkati mwa malire a LPD kuyambira pachiyambi kumapewa kukonzanso kokwera mtengo ndikuwonetsetsa kutsatira. Kubwereza kwa code proactive kumawonetsanso ukatswiri, kupulumutsa kuchedwa kwa projekiti, ndikupanga chidaliro ndi okhudzidwa, owunika, ndi makasitomala chimodzimodzi.
Zolakwa Zodziwika ndi Mmene Mungapewere
Ngakhale ndi zolinga zabwino, mapulojekiti ambiri owunikira amatha kukhala ndi Lighting Power Density (LPD) kuposa momwe amafunikira. Nkhani yabwino? Zolakwa zambiri zimakhala zosavuta kuzipewa mutadziwa zoyenera kuyang'ana.
Malo Ounikira Kwambiri
Kulakwitsa kofala ndikungogwiritsa ntchito zosintha zambiri kapena kusaka milingo yowala kuposa yomwe ikufunika. Izi sizimangokweza LPD komanso zimapangitsa kuti malo azikhala osasangalatsa.
Momwe mungapewere: Tsatirani milingo yowunikira yovomerezeka pamtundu uliwonse ndikugwiritsa ntchito kuyatsa kwantchito m'malo modzaza chipinda chonse.
Kunyalanyaza Zowongolera
Kudumpha masensa okhalamo, zowerengera nthawi, kapena ma dimmers kuli ngati kusiya ndalama patebulo. Popanda zowongolera, magetsi amayaka nthawi zambiri ngati sakufunika.
Momwe mungapewere: Pangani maulamuliro anzeru kuyambira pachiyambi - amalipira okha mwachangu pakupulumutsa mphamvu.
Kudalira Pokhapokha pa Kuunikira kwa Ambient
Mapangidwe ambiri amadalira kwambiri kuyatsa wamba kwinaku akunyalanyaza ntchito ndi kamvekedwe ka mawu. Chotsatira? Kuwononga mphamvu komanso kusawoneka bwino bwino.
Momwe mungapewere: Gwiritsani ntchito njira younikira yosanjikiza. Perekani kuwala kozungulira pamlingo wocheperako, kenaka yikani kuyatsa koyang'ana kumene kuli kofunikira.
Osaganizira za Usana
Okonza nthawi zambiri amanyalanyaza ubwino wa kuwala kwachilengedwe, makamaka m'maofesi kapena mabungwe a maphunziro. Izi zimapangitsa kuti ma watts osafunika awotchedwe masana.
Momwe mungapewere: Phatikizani njira zowunikira masana, monga mazenera akuluakulu, ma skylights, ndi masensa a masana, kuti muchepetse kwambiri kuyatsa kochita kupanga.
Kudikira Mochedwa Kwambiri Kuti Muyang'ane Zofunikira za Khodi
Ntchito zina zimangowunikira malire a LPD mapangidwewo akamaliza, zomwe zimapangitsa kusintha mwachangu kapena kukonzanso kokwera mtengo.
Momwe mungapewere: Unikaninso ASHRAE 90.1, IECC, kapena ma code amderalo koyambirira kwamapangidwe kuti muwonetsetse kuti mapulani anu akukhalabe ogwirizana kuyambira pachiyambi.
Ibibazo
Kutsiliza
Lighting Power Density (LPD) ikhoza kuwoneka ngati kuwerengera kwaukadaulo, koma m'machitidwe, ndi chimodzi mwa zida zamphamvu kwambiri popangira nyumba zabwino, zokhazikika komanso zabwino. Pomvetsetsa ndi kugwiritsa ntchito mfundo monga ASHRAE 90.1 ndi International Energy Conservation Code (IECC), pamodzi ndi malangizo ochokera ku mabungwe monga CIBSE ndi US Green Building Council (USGBC), mukhoza kuonetsetsa kuti mukutsatiridwa pamene mukutsegula phindu lalikulu la nthawi yaitali.
Ntchito zapadziko lonse lapansi zikuwonetsa phindu lake: ma retrofits omwe amalowa m'malo mwa zopangira fulorosenti zakale ndi ma LED ndipo zowongolera mwanzeru nthawi zonse zimapulumutsa mphamvu za 30-40%, pomwe akuchepetsa LPD kukhala milingo yogwirizana ndi ma code. Malinga ndi dipatimenti ya Zamagetsi ku US, kukweza kowunikira kokha kumatha kuchepetsa kugwiritsa ntchito mphamvu zomanga zamalonda ndi 70%, kutsimikizira kuti zisankho zazing'ono zitha kumasulira kukhala phindu lalikulu lazachuma komanso chilengedwe.
Mwachidule, kutsitsa LPD sikungotengera bokosi lotsatira. Kupanga malo owala, okhazikika, komanso okonzeka mtsogolo, malo omwe amasunga ndalama, kuchepetsa mapazi a carbon, ndi kupititsa patsogolo chitonthozo kwa anthu omwe amawagwiritsa ntchito tsiku ndi tsiku.
