Hi. I cannot find the answer anywhere so I'm asking here. Is it less efficient to install a plate heat exchanger laying down with the plates facing upwards? If so why is that?
Orientation of the nozzles and the HX is only relevant when you've got 2 phase flow ( vapor/ liquid) on either one of the 2 sides of the HX. For single phase liquid flow, check that you've got vent nozzles at a high point to fully prime the HX on startup.