Mad - The whole idea to set the dT to 1C is make sure excessive SH cannot be added as seems to be the case in Coolpack.

I do not know what the other programs predict but as DesA is in charge of the comparisons we shall see.

Your idea of a 50C liquid to be cooled in a counterflow exchanger is a bit outside the realm of the discussion at the moment but may be relavanrt later. The same rules will apply when this is analysed I suppose but is it realistic.

Just want to look at stuff you can but of the shelf.