15.2 Domestic Water Flashcards
Why are all water towers taller than ALL buildings on campus?
gravity provides pressure
If one water tower is raised then…
ALL towers must be raised
two goals of underground water source
provide quality water
provide pressure
provide quanity
Principles of Municipal water systems
pump water at night, use water during the day
to keep water from freezing -> use bubbles
Building water system
-Municipal water supply
- booster pump system
- pressure calculation
How is water heated?
- Fuel Combustion
- Electrical conversion (capture the BTUs from hot water)
- Solar energy
- recovered waste heat
Temperature at point of use: Handwashing
105 degrees
Temperature at point of use: Bathing
110 degrees
Temperature at point of use: Commercial Washing
140 degrees and rinse is 180 degrees
Temperature at point of use: Residential washing
140 degrees
Hot water usage devices
lavatory, shower/tub, dishwasher
