Getting closer...
My most recent test, a 9x9x9 homemade styro cooler made of building insulation.
Used 4 homemade gels using the phase 22, each contains the contents of 2 of the hard panel pcms.
The box can hold 3-4oz. gladware containers, weighs in at 5 lbs, and should ship priority fedex for $50
Here is the ambient test conditions:
Conditions inside box:
The spike to 86F at the beginning can be eliminated simply by waiting a little longer after preparing the pcm (hot water bath), so that they may come down to the desired temperature (this is where a temp gun really helps), as you can see, the material loses heat fairly fast above the phase change temperature.
I plan on further testing (in more realistic temps) to try to lose some of the weight, and expense of the material used.
