Which phenomenon limits thermoelectric generator efficiency during energy conversion?

💡 Explanation

When a temperature difference is applied, phonons conduct heat back from the cold side to the hot side because the thermal conductivity increases at higher temps, counteracting the desired thermoelectric effect and limiting efficiency. Therefore phonon thermal conductivity limits efficiency, rather than recombinations, coefficient variance or Joule heating, which contribute different losses.

• Which mechanical consequence results when water permeates the void space within concrete during prolonged freeze-thaw cycles?
• Which outcome occurs when a heavily-doped semiconductor photodiode is rapidly reverse-biased?
• Which mechanism reduces signal clarity when atmospheric turbulence impacts radio telescopes?
• Which outcome is driven by increased entropy during water electrolysis?
• Which risk increases when multi-path optical signals lose coherence?
• Which outcome decreases ductility during metal chloride electrolysis?