Modeling, experimental study and optimization on low-temperature waste heat thermoelectric generator system

The thermoelement as thermoelectric power generator: Effect of leg geometry on the efficiency and power generation

We have probed the local thermoelectric power of semiconductor nanostructures with the use of ultrahigh-vacuum scanning thermoelectric microscopy. When applied to a p-n junction, this method reveals that the thermoelectric power changes its sign abruptly within 2 nanometers across the junction. Because thermoelectric power correlates with electronic structure, we can profile with nanometer spatial resolution the thermoelectric power, band structures, and carrier concentrations of semiconductor junctions that constitute the building blocks of thermoelectric, electronic, and optoelectronic devices.

Profiling the Thermoelectric Power of Semiconductor Junctions with Nanometer Resolution

Thermodynamic analysis of a thermoelectric power generator in relation to geometric configuration device pins

A holistic 3D finite element simulation model for thermoelectric power generator element

Some preliminary studies on influences that heat transfer acts on thermoelectric generator have done in this paper. Based on basic principles of the thermoelectric generation technology and the finite time thermodynamics, the thermoelectric generator performance analysis mathematical model has been established. Through the comparison between simulation results and physical experiment results, accuracy of the mathematical model has been confirmed. And through analysis on test results, some advices about heat transfer performance improvement on system have been proposed. Research results in this paper can be certain instruction significance to the development and application of thermoelectric generation technology.

Chen Yang

Papers

Simulation analysis on thermoelectric generator system performance