Improvement suggestions for loop dialogue

[martin-neugebauer]

As a user, I'd like to suggest a few changes to the loop dialogue:

• Change "Diameter" to "Inner diameter" for clarity
• Add the possibility to define the U-value of a pipe via the thermal conductivity and the pipe wall thickness
• Add the external temperature as a parameter for the pipes, since this might differ depending on where they are placed (this could be variables like Tamb)

[martin-neugebauer]

@zuckerruebe These are suggestions from @DanielPhilippen during a discussion including @ToniCal18. Feel free to elaborate.

[DanielPhilippen]

A clarification for the U-value topic: Calculating it is not a big thing if you are experienced. But it would help if you could just enter specs of the insulation and of the pipe (lambda & thickness) and get (together with a default alpha_out) the U-value calculated. It's only a nice-to-have-thing

[zuckerruebe]

Let's have both? U value, lambda and thickness? The user can choose the way she wants to enter the values? Or would you say U values are totally impractical? Any takes on this @danielcarbonell ?

[ToniCal18]

From an user point of view I agree with Martin. I think that the loop dialogue should include:

• inner diameter and length of the pipe
• thickness and lambda of the pipe
• thickness and lambda of the insulation
• external temperature of the pipe