Simulation study on exhaust turbine power generation for waste heat recovery from exhaust of a diesel engine

Diesel engine has been used as the primary mover in vehicles for a long time. It is known that around 25%–30% of the fuel energy is wasted in the exhaust gas from diesel engines. In this study, a turbine power generation system including a 1.8 kW 60,000 r/min high-speed permanent magnet generator an...

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Autores principales: Yongming Xu, Yimin Cui, Yaodong Wang, Peng Wang
Formato: article
Lenguaje:EN
Publicado: Elsevier 2021
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Acceso en línea:https://doaj.org/article/c9f28cb923804c0db5228a8684382477
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spelling oai:doaj.org-article:c9f28cb923804c0db5228a86843824772021-11-28T04:34:17ZSimulation study on exhaust turbine power generation for waste heat recovery from exhaust of a diesel engine2352-484710.1016/j.egyr.2021.09.083https://doaj.org/article/c9f28cb923804c0db5228a86843824772021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2352484721008891https://doaj.org/toc/2352-4847Diesel engine has been used as the primary mover in vehicles for a long time. It is known that around 25%–30% of the fuel energy is wasted in the exhaust gas from diesel engines. In this study, a turbine power generation system including a 1.8 kW 60,000 r/min high-speed permanent magnet generator and a micro exhaust gas turbine, which is coupled to a diesel engine is designed and modeled to investigate its potential for recovering the wasted energy in the exhaust gas from a diesel engine. Computational models are set up using GT-POWER, MATLAB/SIMULINK and ANSOFT software. The performance and characteristics of the generator, the exhaust gas turbine and the engine are investigated. The simulation results showed that the exhaust turbine power generation system recovered the energy from the engine exhaust gas to generate electrical power. Simultaneously, the maximum power generated is 1.8 kW when the turbine speed is 60,000 rpm. The system efficiency reached its peak of 42.8% when the engine speed is 3000 rpm Last but not least, the electromagnetic characteristics of high-speed permanent magnet generator, which is coupled to an exhaust turbine, are also discussed and presented.Yongming XuYimin CuiYaodong WangPeng WangElsevierarticleExhaust turbineEnergy recoveryHigh-speed permanent magnet generatorGenerator electromagnetic characteristicsSystem efficiencyElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENEnergy Reports, Vol 7, Iss , Pp 8378-8389 (2021)
institution DOAJ
collection DOAJ
language EN
topic Exhaust turbine
Energy recovery
High-speed permanent magnet generator
Generator electromagnetic characteristics
System efficiency
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
spellingShingle Exhaust turbine
Energy recovery
High-speed permanent magnet generator
Generator electromagnetic characteristics
System efficiency
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Yongming Xu
Yimin Cui
Yaodong Wang
Peng Wang
Simulation study on exhaust turbine power generation for waste heat recovery from exhaust of a diesel engine
description Diesel engine has been used as the primary mover in vehicles for a long time. It is known that around 25%–30% of the fuel energy is wasted in the exhaust gas from diesel engines. In this study, a turbine power generation system including a 1.8 kW 60,000 r/min high-speed permanent magnet generator and a micro exhaust gas turbine, which is coupled to a diesel engine is designed and modeled to investigate its potential for recovering the wasted energy in the exhaust gas from a diesel engine. Computational models are set up using GT-POWER, MATLAB/SIMULINK and ANSOFT software. The performance and characteristics of the generator, the exhaust gas turbine and the engine are investigated. The simulation results showed that the exhaust turbine power generation system recovered the energy from the engine exhaust gas to generate electrical power. Simultaneously, the maximum power generated is 1.8 kW when the turbine speed is 60,000 rpm. The system efficiency reached its peak of 42.8% when the engine speed is 3000 rpm Last but not least, the electromagnetic characteristics of high-speed permanent magnet generator, which is coupled to an exhaust turbine, are also discussed and presented.
format article
author Yongming Xu
Yimin Cui
Yaodong Wang
Peng Wang
author_facet Yongming Xu
Yimin Cui
Yaodong Wang
Peng Wang
author_sort Yongming Xu
title Simulation study on exhaust turbine power generation for waste heat recovery from exhaust of a diesel engine
title_short Simulation study on exhaust turbine power generation for waste heat recovery from exhaust of a diesel engine
title_full Simulation study on exhaust turbine power generation for waste heat recovery from exhaust of a diesel engine
title_fullStr Simulation study on exhaust turbine power generation for waste heat recovery from exhaust of a diesel engine
title_full_unstemmed Simulation study on exhaust turbine power generation for waste heat recovery from exhaust of a diesel engine
title_sort simulation study on exhaust turbine power generation for waste heat recovery from exhaust of a diesel engine
publisher Elsevier
publishDate 2021
url https://doaj.org/article/c9f28cb923804c0db5228a8684382477
work_keys_str_mv AT yongmingxu simulationstudyonexhaustturbinepowergenerationforwasteheatrecoveryfromexhaustofadieselengine
AT yimincui simulationstudyonexhaustturbinepowergenerationforwasteheatrecoveryfromexhaustofadieselengine
AT yaodongwang simulationstudyonexhaustturbinepowergenerationforwasteheatrecoveryfromexhaustofadieselengine
AT pengwang simulationstudyonexhaustturbinepowergenerationforwasteheatrecoveryfromexhaustofadieselengine
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