• tal@lemmy.todayEnglish
    3 months

    First, Peltier elements are pretty inefficient. Second, I’m dubious about the design — a Peltier element moves heat from Point A to Point B, and the whole device appears to still sit beneath the shirt. I suppose that the hot side is the outer side, but what you’d ideally want is to have hot air blowing as far away from you as possible.

    I’m skeptical that it’s better to carry a battery-powered Peltier element than to carry something like an evaporative cooler. That’s more-energy-efficient, and you don’t have the problem of part of the device getting hot.

    EDIT: Or, if you can’t leverage phase-change from liquid water to water vapor because of high humidity, cooling vests that leverage solid to liquid phase-change.

    How a Cooling Vest Invented by a Furry Made Its Way Into the U.S. Military