Coils - Inline vs Staggered tube

[US Iceman]

I have a general question.

Why is it important to know the heat transfer of a square tube pitch?

No one I know of uses this anymore because the heat transfer was so much less than a triangular tube pitch.

Or, is this an academic exercise?

[nh3simman]

When we deal with practical matters like the workings of refrigeration, you will often heat statements like:

Its not practical
Why do we need to know this?
Is this just academic?
...

I would like to make some comment on this

...Why is it important to know the heat transfer of a square tube pitch?...
Or, is this an academic exercise?

Many of the greatest scientific discoveries in history were not accepted by contemporary scientists. They were often seen as wild and incorrect assumptions.

Where would the modern advances in A/C power be if it were not for people like Tesla?

[US Iceman]

Square geometry is preferred for sensible heat transfer, because less dehumidification occurs.

That is interesting. I was not aware of this. It might also dictate why the coil depth might have more than 10 rows deep, which is about as deep as we normally use for refrigeration purposes here in the US.

Is the square pitch used because of an actual design requirement for less dehumidification, or has this been found to serve this purpose based on a specific application with certain equipment?

Many of the greatest scientific discoveries in history were not accepted by contemporary scientists. They were often seen as wild and incorrect assumptions.

Where would the modern advances in A/C power be if it were not for people like Tesla?

You are preaching to the choir. I worked in R & D for almost 5 years and am not known for doing impersonations of ostriches.

All of the research I have read or heard of simply stated the best heat transfer for the cost of the coil was obtained by the use of triangular pitch tubes.

Some manufacturers went so far as to develop an optimum X and Y dimension on the pitch also. And recently, one manufacturer has started to use elliptical tubes.

And, the majority of the refrigeration applications are not concerned with humidity control. Simply temperature control.

I simply asked a question to find out more information.

[nh3simman]

I simply asked a question to find out more information.

Sorry Iceman, no personal attack intended. I'm just a bit over-sensitive about criticism of academic investigation.

[US Iceman]

I'm just a bit over-sensitive about criticism of academic investigation.

That's understandable. It certainly was not intended to be criticism, only a simple question as the statement made was something new to me.

No harm done. But you just found out I can be a little testy too.