A building will have 100 FTEs. What is the building’s daily water use?

google

试卷: LEED AP ND模拟题B[查看]
A building will have 100 FTEs. What is the building’s daily water use?
A: 420 gallons
B: 585 gallons
C: 400 gallons
D: 340 gallons

参考答案: B

本题解释:
Assume 50 men and 50 women.

The baseline case assumes 1 water closet and 2 urinal uses / day for men, and 3 water closet uses / day for women.

EPAct 1992 has a flush rate of 1.6 gpf for water closets and 1.0 gpf for urinals
EPAct 1992 has a flow rate of 2.2 gpm for faucets, which are assumed to be used for 15 seconds per visit (3 visits per day)

50 men X 2 urinal uses X 1.0 gpf = 100 gallons / day

50 men X 1 water closet uses X 1.6 gpf = 80 gallons / day

50 women X 3 water closet uses X 1.6 gpf = 240 gallons day

100 FTEs X 3 bathroom trips / day X 15 seconds = (4500 seconds / 60 seconds) X 2.2 gpm = 165 gallons / day for faucet use

100 + 80 + 240 + 165 gallons = 585 gallons day