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A Review of Efficiency and Feasibility for Several Energy Recovery Systems in Automotives
- 1 Beijing Royal School, Beijing
- 2 Pittsburgh Institute Sichuan University
- 3 International Transport College Dublin, Chang’an University
- 4 Ulink college of Shanghai, Shanghai, 201615, China
* Author to whom correspondence should be addressed.
Abstract
Nowadays, the automotive industry faces significant challenges in improving energy efficiency and in order to protect the environment. This paper will investigate the potential of energy recovery systems to reduce the substantial waste energy generated by internal combustion engines. Thermal recovery technology including regenerative braking, mechanical flywheels, thermoelectric generators, and electric turbochargers all of these technologies can enhance vehicle energy efficiency. This paper investigates two criteria energy efficiency and feasibility. It has been determined that regenerative braking improves by up to 8% in fuel efficiency. mechanical flywheels improved by 11% in fuel efficiency. respectively. For TEG technology, under a specific environment and using Cúk converters and MPPT control it shows an increase from 14.5% to 22.6%, but lower power output than the previous two technologies. For Electric Turbochargers, it achieves maximum values of 8.4% to 18.4% in enhancement in energy efficiency. The paper also focuses on the feasibility, of regenerative braking the semi-automatic turbocharger is better for driving, mechanical flywheels, compared to traditional hybrid electric vehicles (HEVs), PS-FHV is a workable technology that provides greater fuel economy and quicker acceleration. For thermoelectric generators, it illustrates that it is possible to replace the traditional internal combustion engine with a thermoelectric generator in automotive powertrains and it is suited for future extended-range electric vehicles (EEVs) and hybrid electric vehicles (HEVs). Lastly, regenerative braking provides a novel control strategy is the potential to improve both efficiency and safety. In summary, these technologies have significant potential to improve automotive energy efficiency, and future research could further optimize the application of these technologies to achieve higher energy efficiency and lower environmental impacts. The currently best technology for energy recovery is the regenerative braking and mechanical flywheels. However, thermoelectric generators can have the most potential in the future, especially in extended-range electric vehicles (EEVs) and hybrid electric vehicles (HEVs). Based on the research, hybrid and extended-range electric vehicles have be potential for future markets.
Keywords
Energy recovery efficiency, feasibility, thermoelectric generators, flywheel, regenerative braking, electric turbocharger
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Cite this article
Zhao,X.;Wang,Y.;Gong,H.;Zhou,L. (2025). A Review of Efficiency and Feasibility for Several Energy Recovery Systems in Automotives. Theoretical and Natural Science,108,1-37.
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