I am trying to calculate how much psi of air i would need in order to make a aluminum pipe float in a pool. I determined how much flotation is needed using pipe insulators that are measured in pounds per cubic foot. Is there anyway to convert pounds per cubic foot to pounds per square inch? So based off the density of the foam can i determine how much pressure is equivalent?
I am trying to calculate how much psi of air i would need in order to make a aluminum pipe float in a pool. I determined how much flotation is needed using pipe insulators that are measured in pounds per cubic foot. Is there anyway to convert pounds per cubic foot to pounds per square inch? So based off the density of the foam can i determine how much pressure is equivalent?
What you need to do is exclude water from the inside. If the pipe is sealed, you don't need any pressure inside, although if it has TINY leaks, some pressure inside will delay water intrusion through the leaks.
Air has weight and the more air you compress inside the pipe, the more it will weigh (although the change is relatively small).
Assuming you prevent water intrusion, it will float if it weighs less than the water it displaces (based on the gross or exterior volume of the sealed pipe.) Since aluminum is heavier than water, there has to be a large enough interior space filled with air or something light to average out.
In inflatable water toys, air pressure is important because it forces the toy into shape and establishes the sealed volume.
MY ASSIGNMENT IS:
IF 1 1/3 OF AN INCH OF RAIN FALLS ON AN ACRE OF LAND HOW MANY GALLONS OF WATER FALL ON THE LAND AND HOW MUCH DOES IT WEIGH ??????
So far it all balls down to this equation: (had to put it in fractions because 1/3 does'nt had and even decimal)
3.6534/1 x 80/1 x 4/3 =? 2090880/3 sq. in
MY ASSIGNMENT IS:
IF 1 1/3 OF AN INCH OF RAIN FALLS ON AN ACRE OF LAND HOW MANY GALLONS OF WATER FALL ON THE LAND AND HOW MUCH DOES IT WEIGH ??????
So far it all balls down to this equation: (had to put it in fractions because 1/3 does'nt had and even decimal)
3.6534/1 x 80/1 x 4/3 =? 2090880/3 sq. in
but i need to know how much this is in gallons
A gallon (more specifically, a US gallon, Imperial gallons are different) is 231 in³.
However, go back and review your calculations. An acre is 43560 ft² and 1 ft² = 144 in². I think you have 8 363 520 in³ of water or 36205.7 gallons of water.
Thank you for your explanation for the square inch into cubic foot. i wasn't understanding it at all this morning and i couldn't find answers online that explained it in layman's terms. i needed it simply put and your explanation along with the two conversion calculators which i used to help me see how the answers came about were very helpful to me.
So thanks again you made my day alot easier!!
Comment