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Dear TessLib experts,
I am simulating a solar thermal collector coupled with a horizontal tank. Within the horizontal tank, an immersed horizontal coiled HX carries the working fluid along the length of the cyclinder (from side to side). The attached image may help you picture the assembly.
I have been using Type 1533-coiled-v2a from Tess Libs 18. Type 1533 offers 4 options of HX geometry : Horizontal tube bank, Vertical tube bank, Coiled and Serpentine.
In the Mathematical References manual, while the axis of the noding of the first 2 geometries is explicitly mentionned ( horizontal and vertical), for the latter 2, it is only says" divided into N hx nodes along the flow direction". Assuming that it means the flow inside the HX tube, the direction remains unclear.
On the other hand, given that the tank is divided along the vertical axis, and that I can assign mutliple HX nodes to 1 horizontal tank node, but not the opposite : this should indicate that the coiled Hx is positionned vertically.
While I may have already answered myself, I still want to verify :
- Are the coiled and serpentine HX within Type 1533 assumed vertical ?
and followingly, I would like to ask :
- Is there a possible tweak of parameters ( perhaps in the datafile version? ) that would allow me to change the HX orientation ( or maybe change the noding axis for the tank itself ? )
I hope my question was clear.
Regards,
Mehdi_S
