Recent content by thermalquestion

Since the pipe is not a cylinder there are two boundaries to be considered. The outer and inner diameter. How do calculate both the inner and outer diameter? I understand the outer diameter if the pipe is a solid cylinder but how to treat the internal diameter in the case of a hollow cylinder?

OK, I wasn't sure if this linear calculation was sufficient and was probably just making it unnessisarily complicated. Yes, the water is in an open system so the expansion of the water can be ignored, you are right. Thanks.

Are you saying there is no calculation which can be used to estimate this? The uncertainty in the measurement may be bigger than the effect. P

This is not a problem out of a book. I genuinely have a pipe filled with water.The pipe is actually part of a flow loop but let's assume there is zero flow. The water is encased by the pipe and cann ot spill over. The change in temperature is 5oC. Changing from 20-25oC. 20oC is the datum. P

I would like to calculate the new diameter and thickness of a steel pipe filled with water. At 20oC the pipe ID is 0.1016m and thickness is 0.0127m. Coef vol th exp water 21e-5/oC coef lin th exp steel 1.2e-6 The pipe can be assumed 1m in length. I calculated that the water would expand...