Yuav ua li cas txuag 840,000 nqi hluav taws xob rau coj cov teeb roj fluorescent?
Siv lub teeb 40w fluorescent teeb uas tam sim no siv dav ua piv txwv
1. Kev ntsuas hluav taws xob:
1. Lub zog siv tiag tiag ntawm cov pa 1.2m, 40W lub raj roj fluorescent yog 45W (suav nrog lub hwj chim ntawm ballast).
Kev kwv yees: Lub teeb tau siv rau 12 teev nyob rau ib hnub, thiab lub sijhawm siv yog 365 hnub hauv ib xyoos. Tom qab ntawd lub zog siv hluav taws xob ntawm txhua lub teeb roj fluorescent hauv 1 xyoos yog:
Kev siv hluav taws xob txhua xyoo (Pt)=40W*12H*365≈175 kWh
2. LED raj fluorescent: 18W (hloov 40W lub teeb roj fluorescent)
Kev siv hluav taws xob txhua xyoo yog:
Kev siv hluav taws xob txhua xyoo (Pt ')=18W*12H*365≈78 kWh
Piv txwv tias tus nqi hluav taws xob ib kilowatt-teev yog x=1.00 yuan, tus nqi hluav taws xob txhua xyoo uas tuaj yeem txuag tau yog X:
X=x*(Pt-Pt ')=1*(175-78)=97.00 yuan
3. Raws li kev siv 1000 LED teeb lub teeb ci, cov teeb roj fluorescent LED yuav txuag ntau dua li cov teeb roj fluorescent txhua xyoo
97*1000=97,000.00 yuan.
2. Sib piv cov txiaj ntsig kev lag luam: (kwv yees kwv yees, siv tau 5 xyoos)
A. LED teeb fluorescent:
1. Tus nqi ntawm cov teeb thiab teeb, suav los ntawm 1000: 1000*60.00=60,000.00 yuan
2. Tus nqi them rov qab: 60,000/97,000=0.6 xyoo lossis 7 hlis
3. Kev pab: 5-0.6=4.4 xyoo
4.4*97,000.00=426,800.00 yuan
Ntawd yog kom rov qab them tus nqi hauv 7 lub hlis, koj tseem tuaj yeem khwv tau 426800.00 yuan hauv nqi hluav taws xob
Qhov tseeb, nws yog cov khoom muaj txiaj ntsig uas tua ob tug noog nrog ib lub pob zeb.
1000 daim, txuag 84,000 yuan ib xyoos
10,000 daim tuaj yeem txuag 840,000 yuan ib xyoos
