Any Mathematicians out there?

[nbd13]

Well i FINALLY got my 100 foot run of PVC done to remote locate the chiller.

but how much water should i make up?

i know the pipes will carry some water in them. like i said its about 100ish feet.

anyone know how to figure this out?

there has to be some formula out there?

thanks

Nick

[Detritivore]

whats the diameter of the pipe?

basically, you need to find the volume of the pipe in cubic feet and multiply that by 7.47

[nbd13]

of shoot forgot to put that on there its 1 1/2" PVC

thanks

Nick

[Detritivore]

ok i think you'll need roughly 9.16 gallons...dont take my word for it though hopefully someone else'll chime in.

[ldrhawke]

of shoot forgot to put that on there its 1 1/2" PVC

thanks

Nick

.105 gal per foot or 10.5 gal in a 100 foot of pipe

[Detritivore]

hi larry, how'd you figure that out?

[ldrhawke]

hi larry, how'd you figure that out?

hi ****,

It was easy......I went out to Home Depot and bought 100' of 1 1/2" pvc pipe. Plugged one end, hung it off the side of a 4 story building and used a 1 gal milk jug to fill it up. It took a little over ten jugs to fill it.
:teleport:

[mesocosm]

Greetings All !

Well i FINALLY got my 100 foot run of PVC done to remote locate the chiller.
... but how much water should i make up?
... i know the pipes will carry some water in them. like i said its about 100ish feet.
... anyone know how to figure this out?
... there has to be some formula out there?

thanks
Nick

Okay ... for standard US gallons ...

We're talking about a 100 foot long cylinder with a radius of .75 inches, yes?

V = [ (pi) x (radius squared, in inches) x (length, in inches) ] / 231 .

V = [ (3.14)(.75)(.75)(1200) ] / 231

= 9.17 standard US gallons.

If we're going to be ticky-tack ... this is the empty volume of the tube, and we're assuming that the tube is symmetrical. We're also assuming that we're talking about 100 feet ... hmmm ... and let's not forget the diameter and length of the chiller coil, yes? As to what water volume of water you need to mix ... hehe ... don't we need to know the water's temperature? ...

... isn't math/science fun? ...

All things being equal, I'm tempted to trust ldrhawke's number more ... he works with this stuff regularly ... and critically ... as part of his business, yes? I'd be interested to see the source equation ...


JMO

[mesocosm]

Greetings All !

hi ****,

It was easy......I went out to Home Depot and bought 100' of 1 1/2" pvc pipe. Plugged one end, hung it off the side of a 4 story building and used a 1 gal milk jug to fill it up. It took a little over ten jugs to fill it.
:teleport:

So much for math/science ...

[reeftec]

it be aproximately 9.18 gal not to put it in formulas this is how to calculate volume of a cylinder you multiply height x square radiusx pi
in your case height=lenght=100' or 1200"
radius=1.5"/2=.75"
volume of water in 100' 1.5" ID pvc = 1200 x .75 x.75 x3.14=2119.5 cubic inches
conversion of cubic inches to gallon 1 gal= 231 cubic inches
so 2119.5 / 231= 9.18 gal

[nbd13]

haha you guys are funny, i will let you know how much it really takes hopefulyl by sunday.

and i did forget to add the chiller coil, so i would say that 1" dont knwo how long so i will throw in another 1-2 gallons for it. haha

thanks for your help.

Nick

[reeftec]

well you beat me to it

[reeftec]

you type fast man amazing

[mesocosm]

you type fast man amazing

That's a first ... but you know how to truncate numbers properly ...

[ldrhawke]

it be aproximately 9.18 gal not to put it in formulas this is how to calculate volume of a cylinder you multiply height x square radiusx pi
in your case height=lenght=100' or 1200"
radius=1.5"/2=.75"
volume of water in 100' 1.5" ID pvc = 1200 x .75 x.75 x3.14=2119.5 cubic inches
conversion of cubic inches to gallon 1 gal= 231 cubic inches
so 2119.5 / 231= 9.18 gal

That's one way to figure it......

Or as I described above...or take the easy way and go to my Handy Desk Engineering data book and look it up for schedule 40 pipe. which has an internal cross section of .01414 sq. ft. and hold .1058 gallons per foot .