A traffic-energy harvester that converts tiny wheel passes into electricity. Build it as a private-lane/demo rig (not public roads): a low-travel speed-table or piezo road tile produces AC/DC that’s rectified and stored in a supercapacitor/battery to run LEDs, counters, or a small IoT node.

Parts Used:

1.Hot-Side Hardware

1. Flat hot shoe/heat spreader (thick Al/SS/Cu), clamp to stove/ flue plate
2. Thermal interface (graphite pad/grease), spring clamp with torque control
3. Thermal fuse (e.g., 184–192 °C) or bimetal over-temp lifter

2.TEG Modules (not TEC coolers)

1. 40×40 mm power-generation TEGs (BiTe), hot-side rating ≥ 250 °C
2. Start with 2–4 modules; plan series wiring for voltage

3.Cold-Side Cooling (pick one)

1. Fin heatsink + 12 V fan (quiet, simple)
2. Water block/thermosyphon to small radiator (highest ΔT)
3. Heat pipes into a fin stack (good compromise)

4.Electronics

1. TEG DC-DC: ultra-low-V boost MPPT (for low ΔT) or synchronous buck (if Voc > 6 V)
2. Output rails: 5 V USB (3 A), optional 12 V (2–3 A)
3. Supercapacitor (10–50 F) for fan/USB soft-start, TVS surge, fuse
4. Meters: V/I/W display, temp sensors (hot/cold)

5.Enclosure & Wiring

1. Sheet-metal shroud, silicone/PTFE wire near hot zone, ceramic standoffs, glands