12 V ψυγειο για αυτονομο

[makatas]

Παναγιώτη αυτό το λινκ δίνει ωραίες πληροφορίες, το διαβάζω κι εγώ τώρα και θεώρησα ότι θα σου είναι χρήσιμο.

15. Can I physically stack TE devices to get a greater ΔT?

Yes... but it is not so simple as merely stacking two identical Peltier devices, one on top of the other. The critical reality here is that the second device must not only pump the heat from the thermal load plus its own internal power dissipation (I²R), but it also must remove the heat dissipated within the first TE device. It is usually most sensible from a cost standpoint, therefore, to employ a much smaller device on the first stage than the second. Be aware in stacking modules, however, that the overall heat-pumping capacity (in watts) of the stack will be limited to the throughput of the smallest device (while ΔT is enhanced with multi-staging, Q is sacrificed).