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funkyab

calculating the volume of a 90deg pvc elbow?

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Hey!

I have realized that I need to bend my ports to keep proper clearance from the back wall of my box. I bought 90deg 4" thin wall PVC elbows which fit great but I can not for the life of me figure out how to calculate the volume of the elbow.

 

Can anyone throw the formula at me?

 

Thanks in advance.

A


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measure the outside of the bend, then measure the inside of the bend and take the mean average, then figure it out like a strait pipe but use the mean average as the length. So for example if the outside of the bend is 6 inches and the inside is 3 inches then figure the length of the pipe to be 4.5 inches and calculate from there


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****!!

3 min reply! Fast like lightning!

Easier than i thought .

Thanks!

A


2005 Saab 93 turbo Linear Build coming soon.

---------------

[sIGPIC][/sIGPIC]Boat: 1992 Ebbtide Campione 180 Limited

Rear Bench Seat: 2 fusion 6.5” marine speakers

Driver and Passenger Panels: 2 Fusion 6.5” Power Plant

Profile 4ch ap1040^

Tower: 4 Soundstream Picasso 6.5”

Profile 4ch ap1040^

Bow: 2 Infinity 5.5”

Profile 2ch ap600^

Subs: 2 Alpine Type R’s in separate 2.5cube boxes with 4” aero ports tuned at 32hz. Waterproofed with 4 coats of resin and marine paint.

Hifonics bxi1606d

200a H/O marine grade alternator (100 at idle)

1/0 knukonceptz to and from all the amps, same 1/0 connecting 2 Optima Yellow Top batteries. (batteries a on either side of engine compartment)

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You could figre an average or you could measure one side of the inside of the bend and add that to one side of the outside ofthe bend and multiply by the area of the round cross section. It should be within a ci or two of the volume of the lengh of pipe that it accounts for for port length.


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Id just calculate it as a continuous length the same as I would PVC. It wont make much a of a difference.

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just take the double integral of the funtion f(x,y)=1 with the proper bounds type I or type II (and convert to polar coordinates to make the integration easier).

 

at least that's what i'm going to take a quiz on in about 10 minutes, and it actually applies to this situation :)

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just measure down the middle

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Thanks To All!


2005 Saab 93 turbo Linear Build coming soon.

---------------

[sIGPIC][/sIGPIC]Boat: 1992 Ebbtide Campione 180 Limited

Rear Bench Seat: 2 fusion 6.5” marine speakers

Driver and Passenger Panels: 2 Fusion 6.5” Power Plant

Profile 4ch ap1040^

Tower: 4 Soundstream Picasso 6.5”

Profile 4ch ap1040^

Bow: 2 Infinity 5.5”

Profile 2ch ap600^

Subs: 2 Alpine Type R’s in separate 2.5cube boxes with 4” aero ports tuned at 32hz. Waterproofed with 4 coats of resin and marine paint.

Hifonics bxi1606d

200a H/O marine grade alternator (100 at idle)

1/0 knukonceptz to and from all the amps, same 1/0 connecting 2 Optima Yellow Top batteries. (batteries a on either side of engine compartment)

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Id just calculate it as a continuous length the same as I would PVC. It wont make much a of a difference.

 

 

That's what I always do.


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