TIET KitM NANG LI/0NG Q
Tinh nang, hieu qua va Men trang
AP DUNG DEN TIN HIEU GIAO THONG NLMT
DUOng Danh Quy, Ban ATGTtinh Dong Nai
T
rong tinh hinh hidn nay va nhieu nam t i l p theo, vide tiet kidm n i n g lUpng va t i n g cUdng sfl dung nang lUpng sach da va dang trd thanh ydu cau bflc xuc cua toan xa hdi. Rieng linh vUc bao d i m trat tU an toan giao thdng, thdi gian qua nhieu ndi van sfl dung dien ngudn AC (dien ludi) theo truyen thdng trong vieclap dat cac chdt den cInh bao giao thdng. Vide lap dat den spi ddt sfl dung ngudn AC truyen thdng da bdc Id nhieu bat lpi va ban che. Nhan thflc Quae van de tren, qua tim hieu dac diem ky thuat va tinh Uu viet cua loai den LED sfl dung nang lUdng mat trdi;
tfl nam 2006, Ban ATGT tinh Odng Nai da bat dUa vao sfl dung den d n h bao
giao thdng bang loai den nay thay the loai den bang bdng spi dot sfl dung ngudn dien lUdi thdng thfldng.
Tfl khi bat dau sfl dung loai den tren tfl nam 2006 den nay, qua mdt sd nam theo ddi sfl dung loai den nay, chung tdi nhan thay cd nhflng Uu diem sau:
TrUdc het tim hieu va so sanh dac tinh ky thuat cua chung Nguon sddung
Ngudnsfldung V
Hidu suit phat quang (1 m/W) Tudi thp (h)
Tam nhin d n h b l o
Chi phi duy tu b l o dudng
Oien n i n g tidu thu
Blo h i n h
Tie ddng mdi trfldng
Oen sdi ddt sddung ngudn AC
Xoay chieu 10 Thap(1.000)h
<200m
- Lupng nhiet sinh ra trong q u i trinh boat ddng cua bdng den spi dot cao dan den mau hUhdng.
- Phli thudng xuyen duy tu b l o dfldng -Tieu tdn didn ning lOOW/h.
- Lfldng tieu tdn didn nang = 40 lan chdp/
phflt = 30 phut = 50W/h. 24h = 1 kW. 1 t h i n g
= 30kW. 1nam = 360kW/h 1 nam
Ning lupng p h i t ra kem khi CO^ (theo tidu chuan Kyoto, lupng CO^ t h i i ra mdi trfldng la 0.37Kg CO/kwh. 1 n i m = 136 Kg CO^ dflpc t h i i ra mdi trfldng
Oen LED ngudn DC (dung Pin NLMT)
Mdt chieu 15 Cao (>5.000h)
>500m
- Lupng nhiet sinh ra thap hdn nhieu (gan nhU khdng dang ke).
- T i l t kiem chi phi duy tu blodudng.
Khdng tieu tdn didn ning tfl lUdi
2 nam
Nang lUpng xanh va sach hoan t o i n
Dien & Ddi son^ 31
S TIET KitiM NANG LI/0NG
Nguydn ly boat ddng
Lap dat va sfla chfla
An toan didn
- V l mat vat ly, mudn ed Inh sing, tfle II cd photon p h i t ra phli kich thich nguydn tfl, tao cho didn tfl tfl mfle thap d i n mfle cao, rdi khi didn t f l t u ddng nhly tfl mfle cao d i n mfle thap, nguydn tflsd p h i t ra photon- tfle II I n h sing.
- Oen sdi ddt ra ddi cleh nay 150 n i m , dung ddng didn chay qua spi dot de spi ddt ndng Idn p h i t ra anh sing. Tren 90% n i n g Iflpng dien tieu thu I I d l dot ndng, phan thfle sfl d l bien doi ra I n h sing nhin thay chfla d l y 5%.
Nhfl vay dung bdng den spi ddt de thap sing la m i t di hdn 90% n i n g Iflpng de ddt khdng can thiet va cd hai.
Khd khin trong thao tie va sfla chfla (dao dUdng, ndi ngudn didn lUdi, day didn phfle tap...
De eham, chap
- Odn LED dfla v i o cdng nghd b i n dan.
Hien tai den nay cd tuoi thp 50 ngin gid sfl dung, gap 5 l l n so vdi bdng den 60W thdng thfldng.
- Sfldung den LED t i l t kidm ning lupng tidu thu t f l 70%-80% so vdi den thdng thfldng; kich cd nhd, nhiet ning sinh ra trong qua trinh boat ddng khdng d i n g k l ; boat dpng tdt trong dieu kidn nhiet dp thap; sfl dung ddng didn mot ehilu vdi hieu didn t h i nhd; khdng gay d nhiem mdi trfldng vi khdng sinh ra tia cfle tim, khdng edthuy n g i n . . .
Khi thuan Ipi v l de dang
Op an t o i n cao do sfl dung nang lupng mat trdi
Thd hai, qua qua trinh sd dung, nhan thay nhdng Uu diem va han che cua viec sddung den canh bao giao thdng bang bdng LED sd dung nang iUdng mat trdi:
l/u diem so vdi viec sU dung bong den truyen thong (sUdung bdng den sc/i dot bdng nguon dien AC) eu the:
+ Tuoi thp bdng den cao hdn, n l u cd hdng mdt sd bdng nao dd thi den van boat ddng m l khdng I n h hfldng d i n hoat ddng efla tin hieu.
+ Hoat ddng on djnh, tan sd chdp ddng bd gifla cle den ma khdng phu thudc vao ngudn dien y l u hole cd sfl sai lech didn I p nhfl vide sfldung bdng den spi ddt.
+ Khdng phu thudc vao ngudn didn cung cap v l thdi t i l t (nhfl sam chdp, cat didn...)
+ Lap dat de dang, khdng p h l i cat dudng, dao dfldng, d i u didn Ifldi, l i p dat va theo ddi ddng hd didn k l , thu nap tien didn...
+ L i p dat dflpc bat cfl khu vflc nao, dja hinh nao (dfldng vdng quanh, dfldi eau, b l i dau xe, vung slu vung xa, nhflng vj tri trdn dfldng ndng thdn cd nguy co tai nan giao thdng eao...), d i e bidt la nhflng vj tri, khu vflc khdng cd didn lfldi ngudn AC.
+ Sfl dung n i n g Iflpng mat trdi la ngudn ning Iflpng sach, khdng
gay I n h hUdng mdi trfldng.
+ Od p h i t quang manh hdn - sing hdn do dd cd tam nhin d n h b l o xa hdn, g i i m tdi thieu t i c ddng cua anh nang mat trdi khi ddi didn.
+ Gil thanh lap dat trung binh tfldng dUdng hole cao hdn khdng nhieu so vdi he thdng dung didn Ifldi.
- Hgn che:
+ Thflc t l hidn nay edn mdt sd khd khin v l mat ky thuat, do ban e h l cua kich cd tam thu nang Iflpng mat trdi ndn n i n g Ifldng hap thu dupe d l b i l n doi thanh dien n i n g va tich v i o binh accu chUa Idn, chua dfl eung cap eho nhieu bdng den eung mdt luc hoat ddng vdi cdng suit cao. Do dd chi lap dat dflpc cho d c tru chdt den eInh b l o giao thdng tfl 1-4 bdng) m l
<:hfla flng dung cho d c chdt v l cum den d i l u khiln tin hidu giao thdng dang r i t can hidn nay.
+ Do p h l i cd binh accu Iflu didn ndn tuoi thp efla loai binh n i y khoing 24 t h i n g la p h l i thay t h i , tuy nhidn g i i binh accu n i y khdng cao, trdn thflc t l , nhflng chdt den Ban ATGT tinh l i p dat 4 nam nay nhflng mdi b i t dau bj hdng v l thay the.
Thd ba, qua 4 nam thflc te sd dung den canh bao giao thdng bang bdng LED sd dung nang iflorng mat trdi tren dja ban tinh Ddng Nai, hieu quS cua nd the hien rd:
Oen nay Ban ATGT tren dja ban tinh Odng Nai d l lap dat dflpc 115 tru den cInh b l o giao thdng. Ngoai nhflng flu diem cu t h i neu tren, cung vdi tinh Uu viet mang lai mdt sd ket q u i khdng do d i m Quae, thi hieu q u i ve mat kinh t l d l mang lai l<ha rd ret. Chi tinh ridng ddi vdi cac chdt den eInh b l o sfl dung ddng bo bdng den LED va ngudn didn bang nang Ifldng mat trdi (khdng tinh cle chot den dieu khien tin hidu giao thdng sfl dung bdng LED nhUng van cdn phli dung ngudn didn Ifldi AC), thi hieu q u i cu the nhfl sau:
1 bdng den spi dot tieu thu 30KW/thlng x 230 bdng(115 tru x 2 bdng)x 800 ddng (tinh trung binh qua d c n i m tfl 700d/KW-1.023d/KW) x 12 t h i n g = 66.000.000d/nlm x trung binh 2,5 n i m = 165.000.000d6ng, trong lue dd sfl dung den loai nay khdng p h l i tdn cdng di ghi chep, tinh t o i n va di thu t i l n didn hang thing efla n h i n vidn didn Iflc...
- Tuy nhidn chung tdi cho ring, vide t i l t kidm dflpc sd t i l n tren l<hdng ed y nghia bang vide gdp phan vao fieif Idem dien trong bdi cdnh nddc ta dang rdt thieu diin;sCfdung ndng lugng sgch, khdng gdy d nhiim mdi trUdng trong luc cd thi gidl vd nUdc ta dang phdn ddu cho mdt moi trUdng xanh vd sgch...
