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美隆電子有限公司
Mayloon Electronic Company Limited
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換燈管
照明節能改善計劃
LED (T8) 室內照明燈 [更新換舊方案]
工程方案
:
T8
日光燈管 換裝 LED 燈管
保留原有燈具
,取下舊燈管,只須
重新接駁電線
換上LED燈管。
節能效益比較
T8
日光燈管
T8 LED
發光效率(lm)
慳電效率
(%)
23W(2ft)
8W-10W (2ft) >750lm
50-70%
45W (4ft)
15W-20W (4ft) >1500lm
50-70%
電費計算 (瓦X時間X $) 1000W*1hrs=1deg.
換裝 LED 燈管後之效益
1.
耗電量減少: 55%-70% (節能環保)
2.
照亮度: 提升54%. (可選擇性亮燈數量二次節能)
3.
室內溫度: 降低約2度 (減輕冷氣負荷)
美隆照明產品 現場測試比較換裝燈管 前/後 流明 (lux)
改裝前(螢光燈管)
改裝後(LED 燈管)
結果
換裝前T8燈管 照度 52 Lux
換裝後T8燈管 照度 80 Lux
亮度提升54%
量測出燈管功率 42W
量測出燈管功率 21W
降低耗電50%
耗電: 1.008deg (24hrs)
耗電: 0.504deg (24hrs)
節能達50%
試例: 計算
100支T8燈管
換裝LED燈管後 慳電效率
T8 (4Ft) 42W 燈管 52lux
T8 (4Ft) 21W 燈管 80lux
總瓦:
4,200W /set
總瓦:
2,100W /set
耗電量:
100.8deg/Day
耗電量
50.4deg/Day
電費:
$0.934x100.8= $94.15/day
電費:
$0.934x50.4 = $47.1/day
電費:
$2,824.50/month
電費:
$1,413.00/month
一年電費
HK$33,894.00
一年電費
HK$16,956.00
回報率(ROI) : 50% 。
註: 1. 電費參考中電電費單價格計算。
2. 本方案沒有計算日光燈管二年耗損(買燈及維護)支出。
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