Need Help with Heat Exchange Calculations for Cosplay Suit Idea

[pdorton89]

TL;DR Summary

I am looking to build a watercooler into a Mandolorian Armor Suit. Need Help Calculating if its worth it.

Hello,

I am trying to figure out if the investment into a watercooling system in a Cosplay suit would be worth it.

I plan on using a water loop made by taking a "CoolShirt" https://coolshirt.com/product/white-coolwater-shirt/ and running water through it either from an ice bath in a sealed container and monitor the temp for change outs.

But I got to thinking that if it would work well enough, could I use a PC Watercooler Radiator and fans to exhaust the systems heat out to lower overall temps to a sustainable level.

it would be a 120mm fan, on each side of the radiator (using ~50CFM airflow from the fans each)
a 120mm radiator
and I would be using a 5gph water pump through the radiator.

I am assuming using chilled water would only hasten the time till homeostasis as the heat exchanger would be cooling itself below ambient and then at some point it would settle. Trying to figure out how much lower than ambient that would end up being.

I am trying to cool the human body (98deg f ) and the ambient temp is ~76-82 deg f for the air supply.

Thank you

 

[russ_watters]

For comfort, the supply temperature of the water isn't what matters, per se, it's the heat rejection rate. What kind of wattage was the PC water cooling solution designed to reject, at what temperatures?

For example, if it can reject 100W with water 40F above ambient, it could reject 50W with water 20F above ambient.

My gut take here is that this should work.