Abstract
Turbochargers are widely used in internal combustion engines for achieving higher power output, improvement in fuel economy, and reduction in exhaust emissions. With engine downsizing, the increase in low-end torque and rated power promotes further new engine development. Refer to Leduc et al. (Oil Gas Sci Technol Rev IFP 58(1):115–127, 2003 [3]) and Kirwan et al. (SAE Int J Engines 3(1):355–371, 2010 [4]), for similar power with smaller-sized engines, the reduction in carbon dioxide (CO2) emission is around 20%. The turbocharger with fixed turbine geometry is widely used in medium engine-power intensity applications, and the turbocharger with variable turbine geometry copes with the high engine-power intensity requirements. Also, a turbocharger with variable turbine geometry is used for optimizing the exhaust gas heat energy for the catalyst operation during engine cold starting conditions and emission management. The benefits of using different turbocharger configurations for engine performance enhancement, thermal management, and emission reduction are discussed in this chapter.
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Notes
- 1.
Editor: More details of estimation is available in chapter 3.
References
Büchi A (1905) Patent No. 204630. Highly supercharged compound engine. Imperial Patent Office of the German Reich
TurboNews (2005) The info magazine of borgwarner turbo systems. Issue. 01/05
Leduc P, Dubar B, Ranini A, Monnier G (2003) Downsizing of gasoline engine: an efficient way to reduce CO2 emissions. Oil Gas Sci Technol Rev IFP 58(1):115–127
Kirwan JE, Shost M, Roth G, Zizelman J (2010) 3-cylinder turbocharged gasoline direct injection: a high-value solution for low CO2 and NOx Emissions. SAE Int J Engines 3(1):355–371. No. 2010-01-0590
Burke R, Liu Y, Vijayakumar R, Dalby J (2019) Inner-insulated turbocharger technology to reduce emissions and fuel consumption from modern engines. SAE Technical Paper 2019-24-0184. https://doi.org/10.4271/2019-24-0184
www.elevatecars.com/elevate-volvo-t5-k04-k16-turbo-heat-shield-blanket.html
Acknowledgements
The authors would like to thank Turbo Energy Private Limited, Chennai, for permitting us to publish the chapter. The authors express their thanks to Courtesy: BorgWarner Turbo Systems Team (Germany) for supporting the technical contents. Thanks to Elevate Cars, Inc., California, USA for permitting to use of the images and technical data on the thermal heat shield. Also, thank our colleagues Mr. Tamilarasan, Mr. Chandrasekar, Mr. Sreedhar, and Mr. Karthi for their help during the chapter's preparation.
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Subramani, D.A., Ramesh, K. (2022). Variable Geometry Turbocharger Technologies for Exhaust Energy Recovery and Boosting. In: Lakshminarayanan, P.A., Agarwal, A.K. (eds) Handbook of Thermal Management of Engines. Energy, Environment, and Sustainability. Springer, Singapore. https://doi.org/10.1007/978-981-16-8570-5_4
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DOI: https://doi.org/10.1007/978-981-16-8570-5_4
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