Open AccessEnhanced Thermoelectric Power Generation Using Buck –Boost Converter
Author(s) -
Lourdu Jame,
G. Joselin Retna Kumar,
Suresh Perumal,
Jeyashree
Publication year - 2022
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1219/1/012033
Subject(s) - buck–boost converter , thermoelectric generator , radiator (engine cooling) , boost converter , automotive engineering , buck converter , inductor , turbocharger , power (physics) , waste heat , flyback converter , voltage , electrical engineering , computer science , thermoelectric effect , engineering , physics , mechanical engineering , heat exchanger , quantum mechanics , thermodynamics , turbine
Energy generated in the vehicles depend on the engine and the fuel intake. But usually two thirds of the fuel added to the vehicle, which is, car, trucks bus etc. gets wasted as heat. The energy wasted as heat from areas like engine block, radiator, exhaust pipe engine coolant side and so on. So, to recover the waste heat as usable electrical energy back to the vehicle, Thermoelectric Generator (TEG) can be effectively utilized and its output power could be enhanced by connecting with buck boost converter. Here TEG with coupled inductor is used which produces smooth output with less ripples. TEG is placed in the engine exhaust of the vehicle and the output is connected with buck boost with coupled inductor converter so as to enhance the output voltage. Simulation using Comsol of single stage TEG without Buckboost converter produces an output of 6V.Interestingly TEG with Hotside temperature of 500K and coldside temperature of 300K with 127 legs is connected with buck boost converter with coupled inductor produces the output of 12 V and 0.65 mA is obtained to drive PIR sensor. Moreover in this paper Modified Maximum power point tracker (MPPT) algorithm is proposed to further improve the energy harvesting.