Portable Heat Press Machine

I’m Krissa, An Industrial Design Student. We are currently working on our research study of our thesis entitled ‘Portable Heat Press Machine for upcycling waste (LDPE) plastics. Our problem right now is we have lack of knowledge on how to automatically cool down the temperature in the machine since it’s portable our goal is to attain the combination of heat press and cold press in one machine or the automatic cooling down system. The existing machine at Fablab Bohol, Philippines has separate machines for heat press and cold press. We would like to hear your suggestions. Thank You!