Performance analysis of TEGs applied in the EGR path of a heavy ...

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Conclusions (1)Based on a 1 dimensional engine model and TEG model built upin GT-power environment, the operating condition of EGR pathunder the NRTC cycle was analysed:‣ The EGR temperature and mass flow rate were estimated‣ There is almost a linear relationship between the EGRtemperature and engine load.‣ The range of EGR mass flow rate is mainly within the rangeof 10-40 g/s.‣ The variation of temperature, mass flow and energyavailability under NRTC cycle was simulated.18
Conclusions (2)‣ Using the control parameters in the test engine ECU as thereference, a control algorithm was developed to run the GTpowermodel in transient mode.‣ The power regeneration can be calculated accordingly. Themaximum power is about 170 W, and it will decreases nearlyto zero when the EGR valve is closed.‣ The pressure drop caused by current TEG system is about 4kPa, less than 10% of the total pressure drop in EGR path.19
Page 1 and 2: Performance analysis of TEGs applie
Page 3 and 4: Background• Approximate energy ba
Page 5 and 6: Objectives• Simplifying a 3-D TEG
Page 7 and 8: Thermo-electric generator (TEG) 3-D
Page 9 and 10: Thermo-electric generator (TEG) 1-D
Page 11 and 12: NRTC drive cycle: Analysis of the o
Page 13 and 14: NRTC drive cycle: Transient Perform
Page 15 and 16: Results: TEG induced pressure loss5
Page 17: Development of Real-Time Simulation
Page 21: Thank you !

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