Amount - Water

[Guest]

A water faucet with a 1/4 " continuous drip over a 3 month period wastes a large amount of water. Determine amount of water wasted.

How do I proceed ? Just curious.

[Guest]

Additional info:

The water is at 60 PSI pressure.

[Guest]

A drip is a droplet occurring at a regular or irregular interval.
What is a 1/4" continuous drip......is it a continuous flow of 1/4" diameter...???

What is the shape of the drip and the interval..................

[Guest]

"is it a continuous flow of 1/4" diameter...???"

Yes - not a drip. My error.

[Guest]

The flowrate in metre cubed per second will be the Area of flow in square metres x Velocity of flow in metres per second.
That will give a quantity of cubic metres per second. Then you work out the number od seconds in 3 months and multiply the quantity per second x the numbers of seconds in 3 months. If you are going to work in metres then you need to convert the 1/4" to metres.

[Guest]

How would I use customary units ?

[Guest]

What are "customary" units.................
The fundamental physical quantities for measurement and analysis are length, mass and time......whatever the units.
Most nowadays can adopt to or can work with the metric system.......
The metric syatem for science and engineering uses the MKS or metre-killogramme-second system of basic units.
We are now in the age of global communication, so International recognition of units is important. The System of International Units (SI System) which is similar to MKS in many respects tries to bring that together.

[Guest]

"What are "customary" units................."

U.S. units - inch, foot, ounce, gallon, etc.

[Guest]

I know both system of units are used in the U.S. I just wanted to know how the other system of units would be used. Thanks.

[Guest]

Well then, post your working out in US units................
and we can compare answers..............
My answer in metric units is approx 7000 cu. metres in period of 3 months or a wee bit more.........

[Guest]

I don't know how - not sure which units to use.

[Guest]

Use these units below.....I thought these were your customary units..........

U.S. units - inch, foot, ounce, gallon, etc.

[Guest]

"The flowrate in metre cubed per second will be the Area of flow in square metres x Velocity of flow in metres per second.
That will give a quantity of cubic metres per second. Then you work out the number od seconds in 3 months and multiply the quantity per second x the numbers of seconds in 3 months. If you are going to work in metres then you need to convert the 1/4" to metres."


1/4 " = .020833 feet

seconds in 3 months = 7776000


I'm confused from here.

[Guest]

use your own compatible units

find the area of the 1/4" hole.
Find how fast the water is flowing....velocity
multiply the area x velocity to get the flowrate of water flowing.....units depend on the units you are using
Time is 3 month period....depending on the units you use....may be seconds, minutes , hours

[Guest]

Area - .0490875

I don't how to proceed.

[Guest]

You have just wrote............
Area - .0490875

The area of what??
What units???
How did you calculate it??
What is your method os solving the whole problem??
Did you read the earlier postings...
They described a method on how to solve.....
The method will be the same...no matter what units....
Find the area of the flow,
Find the velocity of flow
Multiply together to get quantity per unit of time
Multiply by the actual time 3 months

[Guest]

"The area of what?? The opening.
What units??? Cubic inches ? - not sure.
How did you calculate it?? Area of circle since the opening uses diameter.
What is your method os solving the whole problem?? I don't know.
Did you read the earlier postings... Yes
They described a method on how to solve.....
The method will be the same...no matter what units....
Find the area of the flow,
Find the velocity of flow" I don't know the steps.

[Guest]

"The area of what?? The opening.
What units??? Cubic inches ? - not sure. Yes it will be cubic inches if you took the diameter in inches
How did you calculate it?? Area of circle since the opening uses diameter. did you use the formula for area of a circle pi x d x d /4
What is your method os solving the whole problem?? I don't know. The method has been outlined in earlier posts
Did you read the earlier postings... Yes ...... what do you not understand, can you not just follow the method
They described a method on how to solve..... read the earlier posts and follow them
The method will be the same...no matter what units....
Find the area of the flow, This is the bit you have found
Find the velocity of flow" I don't know the steps. The velocity is how fast the water is flowing and will depend on the pressure.
Same idea as if you drop a stone from top of a building when it hits the ground the potential energy it had at the top will be converted into velocity energy.
Read up on Bernouli equation for flow of liquids. and use their formulae.
Then velocity x area gives flowrate
flowrate x time gives quantity
whether it is cubic feet or cubic metres depends on the units you are using

[Guest]

"did you use the formula for area of a circle pi x d x d /4" pi x r^2

"Did you read the earlier postings... Yes ...... what do you not understand, can you not just follow the method" I don't how to obtain.

"Read up on Bernouli equation for flow of liquids. and use their formulae." It is too complicated.

[Guest]

Never mind. I can't solve it. I know I posted the problem. I am having too much difficulty. Thanks anyway.