Compact Active Body Cooling System
So I'm going to be making a full-body space armour type costume (Samus from Metroid Prime) eventually and I want to try to design an active cooling system that isn't too heavy, can be concealed within the costume, doesn't require too much replacing of coolant , and doesn't use obscene amounts of energy.
I know the way it's done in commercial active cooling vests is that they run ice water through plastic tubes in a vest. The problem with this is that there is a big, huge tank of water with a big pump that the vest is tethered to and it needs to be plugged into an outlet.
The way I'm thinking of doing it is by putting a network of copper wires in the garment I'll be wearing under the armour that lead to a cooling system in the back of the suit that, right now, I'm thinking will involve ice packs and/or a fan array. I feel like it might not work, so the alternative is to design a custom water or liquid cooling system.
I'm planning on using lithium ion batteries for the cooling system and lights if I can.
Any ideas or suggestions?