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Same Sky Expands SPG Thermoelectric Generator Product Family
Same Sky has broadened its SPG thermoelectric generator (TEG) module line with expanded package dimensions and power ratings up to 27.3 W for industrial waste heat energy recovery.
www.sameskydevices.com
Same Sky and its Thermal Management Group have expanded their portfolio of thermoelectric generator (TEG) modules designed to capture waste heat across industrial processes and convert thermal gradients into usable electrical power. The expanded SPG product family provides power outputs up to 27.3 W, accommodating footprint footprints ranging from 30 x 30 mm to 80 x 80 mm with component profiles starting at 3.5 mm.
Thermal Ratings and Electrical Operating Metrics
The solid-state modules incorporate silicone sealing and support continuous hot-side operational temperatures up to 300°C. For thermal assembly, optional graphite interface pads are available to streamline heat-sink integration.
These TEG modules feature silicone sealing, continuous maximum hot side temperatures up to 300°C, and graphite pad options for a simplified thermal interface. Additional specifications measured under conditions (Th = 300°C / Tc = 30°C) include:
- Open circuit voltage: 8 to 17.7 Vdc
- Matched load resistance: 0.83 to 5.7 Ohms
- Matched load output voltage: 4 to 8.8 V
- Matched load output current: 1 to 5.7 A
- Heat flow across module: 90 to 525 W
- Heat flow density: 6.2 to 13.2 W/cm2
Additional Context
This section details technical specifications not included in the original news release.
Thermoelectric generators convert heat flux directly into electrical energy via the Seebeck effect, where semiconductor thermocouples—typically alternating p-type and n-type doped bismuth telluride elements—are wired electrically in series and thermally in parallel between alumina ceramic plates. Achieving peak power transfer requires matching the external electrical load impedance precisely to the internal electrical resistance of the module, which is governed by the temperature-dependent thermoelectric figure of merit. In industrial waste-heat capture setups, system designers deploy Maximum Power Point Tracking (MPPT) boost converter topologies to dynamically match impedance and stabilize output voltages against fluctuating thermal gradients across exhaust ducts, piping runs, and boiler envelopes. Because TEGs function as heat flux conduits, maintaining the necessary temperature gradient requires cold-side thermal dissipation components—such as liquid-cooled cold plates or heat-pipe-assisted fin arrays—sized to evacuate hundreds of watts of non-converted heat flux while minimizing interface thermal resistance via compressible graphite or phase-change thermal interface materials (TIMs).
Edited by Romila DSilva, Induportals Editor, with AI assistance.
This section details technical specifications not included in the original news release.
Thermoelectric generators convert heat flux directly into electrical energy via the Seebeck effect, where semiconductor thermocouples—typically alternating p-type and n-type doped bismuth telluride elements—are wired electrically in series and thermally in parallel between alumina ceramic plates. Achieving peak power transfer requires matching the external electrical load impedance precisely to the internal electrical resistance of the module, which is governed by the temperature-dependent thermoelectric figure of merit. In industrial waste-heat capture setups, system designers deploy Maximum Power Point Tracking (MPPT) boost converter topologies to dynamically match impedance and stabilize output voltages against fluctuating thermal gradients across exhaust ducts, piping runs, and boiler envelopes. Because TEGs function as heat flux conduits, maintaining the necessary temperature gradient requires cold-side thermal dissipation components—such as liquid-cooled cold plates or heat-pipe-assisted fin arrays—sized to evacuate hundreds of watts of non-converted heat flux while minimizing interface thermal resistance via compressible graphite or phase-change thermal interface materials (TIMs).
Edited by Romila DSilva, Induportals Editor, with AI assistance.
