Peltier modules are a great solution for moving heat from one surface to another, but they are not terribly efficient at it, especially if you don’t keep the hot side temperature in check.

The prototype uses a Peltier effect module to get three cans down to 11 C (52 F), with a final goal of reaching 5 C (41 F). It’s not all fun and games either — [Ethan] provides a suggested ...

They’ll use a traditional compressor alongside a new Peltier module — a semiconductor device that transfers heat from one side to the other when current passes through it. This approach ...