Direct heat to electricity conversion in thermoelectric energy systems

这项建议的目标是深入研究和测试各种创新方法，以增加热电系统的电力输出功率。在第一个方案中，确定了实际条件下热电余热回收的效率。为此，我们建造了一个多腔量热计，以便对不同的热电组件进行检测。采用带最大功率点跟踪(MPPT)的逆变器实现了效率的提高。在该项目中，一个由12个模块组成的热发生器(TEG)被示范建造和测试。研制了一种将热电模块网络的输出转换为最大输出电功率的电路。获得了3.3%的效率(在200℃以下)。一个悬而未决的问题是在更高温度(T&gt；200°C)下的效率提高。

The objective of this proposal is the advanced investigation and testing of various innovative approaches to increase the electrical output power of thermoelectric energy systems. In the first project, the efficiency of thermoelectric waste heat recovery was determined under realistic conditions. For this purpose, a multi chamber calorimeter was constructed, so that different thermoelectric modules have been examined. The improvement of the efficiency was carried out by an inverter with maximum power point tracking (MPPT). In the project a thermo generator (TEG) consisting of 12 modules was exemplarily constructed and tested. An electrical circuit has been developed which converts the output of thermoelectric module network in a maximum output electric power. The efficiency of 3.3 % (at temperatures up to 200 ° C) was obtained. An open question is the efficiency improvement at higher temperatures (T> 200 ° C).