| Title |
Experimental Study on Thermoelectric Generator Performance for Waste Heat Recovery in Vehicles |
| DOI |
http://dx.doi.org/10.6110/KJACR.2014.26.6.287 |
| Keywords |
폐열회수 ; 열전발전 ; 성능지수 ; 연비 ; 발전효율 Waste heat recovery ; Thermoelectric generation ; Figure of merit ; Fuel economy ; Conversion efficiency |
| Abstract |
Internal combustion engines release 30~40% of the energy from fossil fuels into the atmosphere in the form of exhaust gases. By utilizing this waste heat, plenty of energy can be conserved in the auto industry. Thermoelectric generation is one way of transforming the energy from engine's exhaust gases into electricity in a vehicle. The thermoelectric generators located on the exhaust pipe have been developed for vehicle applications. Different experiments with thermoelectric generators have been conducted under various test conditions as following examples: hot gas temperature, hot gas mass flow rate, coolant temperature, and coolant mass flow rate. The experimental results have shown that the generated electrical power increases significantly with the temperature difference between the hot and the cold side of the thermoelectric generator and the gas flow rate of the hot-side heat exchanger. In addition, the gas temperature of the hot-side heat exchanger decreases with the length of the thermoelectric generator, especially at a low gas flow rate. |