Yes. I will be testing a prototype. I was hoping to find ranges of values that others had seen in practice. If it's 15-30%, then I can probably live with it. If it's 50-60%, then it might not work at all or I'll have to make other tradeoffs to make cleaning more frequently possible.
Does anyone have a good resource recommendation or general rules for estimating fouling on natural convection heat sinks?
I'm evaluating lifetime performance of an air cooled, natural convection heat sink for an electronics enclosure. It will be in an industrial area with mildly oily air and...
Thanks for all the responses so far. The funny part is, 4fps IS the faster flow in the tubes. This is a HX that was designed over 20 years ago. I think that since it worked, they called it done. Now we need more heat out but don't want to drastically change the design.
I have thought about...
The velocity in the core tubes is <4 fps, so I'm not concerned about those. The average velocity in these other pieces will be 13.7 fps with infrequent flow up to 15.2 fps. But that is with the current ID. I own to increase the ID to drop the velocity to 12 fps.
One thing working for me is that...
Yes the geometry is like a blind ended tee or a target tee. The flow is both towards the "target" or towards the run depending on if it's the inlet or outlet side.
The joint is made by connecting two pipes with a saddle weld and capping the target end.
There really is no room, at least not for...
I'm working on a heat exchanger fabricated from 90/10 CuNi (likely changing to 70/30) that includes a sharp elbow in the piping leading to/from the core. The elbow is essentially one pipe tee'd into another, like a branch flow coming into the run of a tee, only there is no run. There isn't room...
I have a similar situation. I have 8 years of experience, but only took took the FE last year. In PA, the experience has to come after the EIT certificate. I also have an MS which would count for 1 year of experience, but the PA application says it only counts if you get the degree after you get...
