3 ms·
Working on a prototype for a thermoelectric generator. While the core generation module is a seebeck effect based solid-state off-the-shelf components, my focus
by vivegi 4y ago
Working on a prototype for a thermoelectric generator. While the core generation module is a seebeck effect based solid-state off-the-shelf components, my focus is on optimizing the thermal gradient for voltage and current control and continuous operation (night and day).
A few experiments planned around
- design of heat absorbers and heat sinks
- night and day operation using radiative cooling/paints & coatings
- dennis_jeeves1 4y agoMind putting some back of the envelope calculation on the minimum power that can easily be draw for a given area/volume without too much optimization? (I understand that if the designed is refined it will significantly improve)
- vivegi 4y agoFor a basic calculation on the number of modules, voltage and amps relationship, see: https://thermal.ferrotec.com/technology/thermoelectric-reference-guide/thermalref13/ https://thermal.ferrotec.com/technology/thermoelectric-refer... There is a worked example in 3.3 and Fig. 13-3 in the referenced article has the chart for various temperature differentials. The TEG modules are 30mm x 30mm and arranged in a grid in series-parallel configuration (the referenced article also has this concept illustrated). The area question can be addressed after determining the number of modules, exact series-parallell configuration and spacing between the modules. The volume question is a function of the heat sink geometry.