Simulation for integrating solar and human thermal energy using TEG and low power converter

In this paper, an efficient ultra-low-voltage step-up converter (LTC-3108) circuit is proposed to extract and integrate power from multiple low-power energy harvesting thermoelectric devices. The working principle of the proposed converter setup enables the distribution of power between various contribution sources. Bismuth telluride is taken as an energy harvesting material for TEG2-126LDT and is successfully designed using the COMSOL Multiphysics tool. The output from the thermoelectric devices are fed into the low power converter. The usage of TEG's on both the prototypes makes use of heat energy from the human body and an atmospheric temperature. OM32 [2] substrate is taken as the PCM material which is used for the storage of the produced energy due to its heat storing capabilities [5]. Simulation of the TEG has been carried out using the COMSOL tool and the experimental results may vary according to atmospheric temperature and change in human body temperature.