美国保必丽TrimLine干手器
Bobrick's TrimLine Hand Dryers
1) 美国保必丽TrimLine干手器工作时功率为1700瓦，每次干手耗时约为20秒。
TrimLine Hand Dryer draws 1700 watts (1.7 kW) of electricity while operating and has about 20-second per drying cycle.
2) 每次干手耗时20秒 x 180次干手 = 1小时工作时间。
20 seconds per drying cycle x 180 drying cycles = 1 hour of operation.
3) 1小时 x 1700瓦 = 1700瓦小时。
1 hour x 1.7 kW = 1.7 kWh.
4) 1700瓦小时 x 0.07美分/千瓦小时 = 0.12美分。
1.7 kWh x .07 cents/kWh* =.12 cents.
5) 0.12美分 ÷ 180 （干手次数） = 0.0007美分/每次干手。
0.12 cents ÷ 180 (drying cycles) = .0007¢ per drying cycle.
* 资料来源：美国洛杉矶市2000年2月公布的工商效率等级A1（每月耗能少于30千瓦）。
Source: Los Angeles County Industrial/Commercial Rate A1 (less than 30 kW usage per month) as of February 2000.
标准多层纸巾
Standard Multifold Paper Towels
1) 每次干手平均使用纸巾2.5张。
Average number of paper towels used per hand dry is 2.5 towels.
2) 一盒多层纸巾盒约有2,400张纸巾，平均价值为25美元。
A typical case of 2,400 Multifold paper towels cost an average of $25.00.
3) 一盒2,400张纸巾 ÷ 每次干手消耗2.5张纸巾 = 每盒干手960次。
2,400 paper towels per case ÷ 2.5 paper towels per hand dry = 960 hand dries per case.
4) 25美元 ÷ 960干手次数 = 0.026美分（每次干手所需成本）。
$25.00 per case ÷ 960 hand dries per case = .026¢ (per hand dry.)
使用纸巾的成本还包括装填纸巾所需要的人工成本，清理使用过的纸巾所需要的人工成本，储存纸巾所需要的仓储成本，拉扯纸巾所造成浪费的纸巾成本，容易造成火灾的危险，以及造成管道堵塞的风险。
Further costs of using paper towels include labor to fill dispenser and empty waste receptacles, storage for paper supply, costs of hauling away paper waste, and the hazards of fire and plumbing stoppage.
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左图显示美国保必丽干手器和纸巾每次干手的成本比较 |
采用美国保必丽干手器替代纸巾后计算每年节省的费用
To calculate your annual savings realized by using Bobrick hand dryers instead of paper towels
利用去年纸巾购买记录，以及电费单进行计算：
Use the previous year's towel purchase records, and electricity bill to calculate the following:
1. _____ 每年纸巾的消耗总盒数 x _____ （张数）每盒 = _____ （全部纸巾张数） ÷ 每次干手消耗2.5张纸巾 = 每年需要干手的次数。
_____ total number cases of towels per year x _____ (count) per case = _____ (total towels) ÷ 2.5 towels per dry = annual number of hand dryers.
2. 美元 _____ 每千瓦小时 x 1.7千瓦小时 = 美元 _____ 每小时干手180次 = 美元 ÷ 每次干手成本。
$ _____ per kWh x 1.7 kWh = $ _____ per hour ÷ 180 dries per hour = $ _____ dryer cost per hand dry.
3. _____ 每年需要干手次数（#1） x 美元_____ 每次干手成本（#2） = 美元_____ 每年干手运行成本。在进行比较时，包括纸巾储存成本以及将纸巾装入纸巾器、清空纸巾垃圾箱、倾倒垃圾以及购买纸巾所需要耗费的人工成本。如果没有精确的记录，假定每个卫生间每天需要10分钟对纸巾进行维护，并使用下列公式进行估计预测。
_____ annual number of hand dries (#1) x $ _____ dryer cost per hand dry (#2) = $ _____ annual dryer operating cost. When making the comparison, include the cost of paper towel storage as well as the labor required to fi ll dispensers, empty waste receptacles, dispose of waste, and purchase towels. If precise records are not available, assume that each washroom requires 10 minutes daily to maintain towel supply and use the following formula to make estimate.
4. _____ 卫生间数量 x 10分钟 x 每年运行天数* ÷ 60分钟（每小时） x 美元 _____ 人力维护每小时人工成本 = 直接人工成本。
_____ (count) washrooms x 10 minutes x operating days per year * ÷ 60 minutes per hour x $ _____ labor costs per hour for maintenance personnel = direct labor cost.
* 写字楼或工厂每年通常运行250工作日；学校、电影院或剧院、酒楼餐馆运行时间不等。
Offi ce buildings or factories normally operate 250 workdays per year; the operating days of schools, theaters, or restaurants may vary.
加上纸巾成本，维护纸巾的直接人工成本，纸巾及其垃圾的处理估计成本，然后扣除干手器每年运行成本。每年节省的金额。
Add towel cost, direct labor to maintain towels, estimated cost of towel and waste handling, then deduct the annual operating cost of dryers. The difference is your savings every year.
| 例子： EXAMPLE: |
20小时2,400张多层纸巾盒 @23美元（每盒） Twenty-four 2,400-count cases of multifold towels @ $25.00 per case |
美元600.00 $600.00 |
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| 维护的人工：4个卫生间 x 10分钟。每间房间 x 250天 ÷ 60分钟 x 8美元/每小时 Labor to service: 4 rooms x 10 min. per room x 250 days ÷ 60 minutes x $8.00 per hour. |
美元1,333.00 1,333.00 |
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| 采购，储存，处理纸巾成本（估计值） Ordering, storing, disposing (est.) |
美元100.00 100.00 |
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| 每年纸巾成本 Annual Towel Cost |
美元2,033.00 $2,033.00 |
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| 24 x 2400 ÷ 2.5张（每次干手消耗纸巾张数） = 23,040 (干手次数/年) 0.07美元 (每千瓦小时) x 1.7 (千瓦小时) = 0.119美元 ÷ 180 = 0.0007美元 (每次干手成本) 24 x 2400 ÷ 2.5 towels per hand dry = 23,040 hand dries / year $ .07 kWh x 1.7 kW = $ .119 ÷ 180 = $ .0007 per hand dry |
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| 23,040 x $ .0007 23,040 x $ .0007 |
每年干手器成本 Annual Dryer Cost |
美元16.13 $16.13 |
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| 每年节省 Annual Savings |
美元2,016.87 $2,016.87 |