Thermostatic expansion valve orifice size for variable loiads

[Guner Edip Riza]

I would like to have ideas when selecting the orifice size for variable loads like ice cube makers or ice cream batch freezers. Where the refrigeration load is different at the beginning of the freezing cycle from the load at the end of the freezing cycle.

When selecting the size of the orifice, should we consider the load at the beginning of the freezing cycle, the load at the end of the freezing cycle or the load at middle point?