Recent content by Flyfisherman

.115 wall thickness for copper and .237 wall thickness for PVC

The air can be stagnate or flow through depending on what is easier to calculate. I am trying to figure out what length of copper pipe will equal x length of PVC pipe. I set 100' of 4" PVC pipe as an example.

Any others out there that can help on this?

Yes, what length of copper pipe would equal 100' of PVC pipe? We will assume the air temperature in the pipe is starting at 90°F.

Question#1 I would like to compare a 100' length of 4" PVC pipe with air in it surrounded by Earth and/or water. What length of 4" copper pipe would equal a 100' length of PVC? Question#2 If the inside of the pipe had turbulence what length of non-turbulent 100' PVC 4" pipe would it equal? I...

I wish I studied more of it in college as it interests me now. I am going to have to figure out the amount of water to surround the pipe with as the water will be surrounded with earth. Then to figure the 45cfm - 80 cfm of air flow through the pipe how much the 71°F will increase.

Wow so 90F to 71F with only 10' of pipe is impressive... I appreciate the help.

Thank you again for your help. I am not following the math on this. If you have time can you plug the numbers in? I am curious as to the 45cfm of air flow through the pipe and how much that will affect the 80°F+ number.

What if the air coming into the pipe is 90°F? What would the end temperature be if it is surrounded by 65°F water?

Or this question might be simpler and help me as well. Say you have a 10’ long 4-5” diameter copper pipe or pvc pipe surrounded by 65°F water and 45 cfm of air flowing through it. What is the temperature of the air at the end of the pipe if the beginning starts at 65°F? How long would it take 45...

36 feet per second

Thickness .125" and 4.875" inner diameter and Thermal conductivity at 25°C is 401 as an example.

I can find all those numbers, but it will take time. Do you have a more detailed equation for me to use. I am leaving the internet webs for the holidays, so it will be a week before I get back to you. Thanks

Not enough info to go forward as I don't even know the equation. I am lost trying to figure out how much a 5-10' section of 4-5" pipe surrounded by water would cool the air going through it.

I am new and have a math and finance background. Because of my work I am starting to get into engineering related questions, specifically in piping. I flyfish a lot and can give pointers to anyone that helps me with my questions. Say I have a 5-10' length of pvc, metal or copper pipe that is 4...