Thermodynamic Study of a Cooled Micro Gas Turbine for a Range Extended Electric Vehicle

Carbon dioxide released by the transportation sector has a significant impact on the environment. Nowadays, the research efforts are thoroughly investing in the capability of series hybrid electric vehicles in reducing CO2 and NOX emissions. Many regulations are encouraging automakers to substitute...

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Autores principales:	Joelle Najib, Maroun Nemer, Chakib Bouallou
Formato:	article
Lenguaje:	EN
Publicado:	AIDIC Servizi S.r.l. 2021
Materias:	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
Acceso en línea:	https://doaj.org/article/ddae05d41a82412baa913537a4a7bb68
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spelling	oai:doaj.org-article:ddae05d41a82412baa913537a4a7bb682021-11-15T21:46:55ZThermodynamic Study of a Cooled Micro Gas Turbine for a Range Extended Electric Vehicle10.3303/CET21882092283-9216https://doaj.org/article/ddae05d41a82412baa913537a4a7bb682021-11-01T00:00:00Zhttps://www.cetjournal.it/index.php/cet/article/view/12002https://doaj.org/toc/2283-9216Carbon dioxide released by the transportation sector has a significant impact on the environment. Nowadays, the research efforts are thoroughly investing in the capability of series hybrid electric vehicles in reducing CO2 and NOX emissions. Many regulations are encouraging automakers to substitute internal combustion engines with electric vehicles. Although the latter are zero-emissions energy sources, they are expensive and have a limited autonomy range. Therefore, recent studies are interested in gas turbines (GTs) in series hybrid electric vehicles (SHEV). A gas turbine (GT) coupled to an alternator is considered as an auxiliary power unit capable of charging the battery of the electric vehicle once depleted. The microturbine is generally composed of a centrifugal compressor and a radial turbine mounted on the same shaft with a recuperator and air bearings. Based on previous researches and thermodynamic analysis, the most suitable gas turbine cycle with regard to the efficiency and the net specific work is composed of two compression stages with an intercooler, a regenerator, and two expansion stages with a reheater. It can be deduced that by increasing the turbine inlet temperature, the system efficiency increases. However, the inlet temperature is limited by turbine materials constraints and specifications. The present paper focuses on developing a more efficient GT cycle by reaching higher inlet temperatures by cooling the turbine blade. It consists of using compressed gas from the compressor and introduce them into the turbine blades. This technology takes into consideration the influence of the extracted mass of compressed air, the effectiveness of the coolant, and the turbine blade temperature on thermal efficiency. An increase of the cycle efficiency of 4.78 points is obtained for a turbine inlet temperature of 1,450 °C.Joelle NajibMaroun NemerChakib BouallouAIDIC Servizi S.r.l.articleChemical engineeringTP155-156Computer engineering. Computer hardwareTK7885-7895ENChemical Engineering Transactions, Vol 88 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
spellingShingle	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895 Joelle Najib Maroun Nemer Chakib Bouallou Thermodynamic Study of a Cooled Micro Gas Turbine for a Range Extended Electric Vehicle
description	Carbon dioxide released by the transportation sector has a significant impact on the environment. Nowadays, the research efforts are thoroughly investing in the capability of series hybrid electric vehicles in reducing CO2 and NOX emissions. Many regulations are encouraging automakers to substitute internal combustion engines with electric vehicles. Although the latter are zero-emissions energy sources, they are expensive and have a limited autonomy range. Therefore, recent studies are interested in gas turbines (GTs) in series hybrid electric vehicles (SHEV). A gas turbine (GT) coupled to an alternator is considered as an auxiliary power unit capable of charging the battery of the electric vehicle once depleted. The microturbine is generally composed of a centrifugal compressor and a radial turbine mounted on the same shaft with a recuperator and air bearings. Based on previous researches and thermodynamic analysis, the most suitable gas turbine cycle with regard to the efficiency and the net specific work is composed of two compression stages with an intercooler, a regenerator, and two expansion stages with a reheater. It can be deduced that by increasing the turbine inlet temperature, the system efficiency increases. However, the inlet temperature is limited by turbine materials constraints and specifications. The present paper focuses on developing a more efficient GT cycle by reaching higher inlet temperatures by cooling the turbine blade. It consists of using compressed gas from the compressor and introduce them into the turbine blades. This technology takes into consideration the influence of the extracted mass of compressed air, the effectiveness of the coolant, and the turbine blade temperature on thermal efficiency. An increase of the cycle efficiency of 4.78 points is obtained for a turbine inlet temperature of 1,450 °C.
format	article
author	Joelle Najib Maroun Nemer Chakib Bouallou
author_facet	Joelle Najib Maroun Nemer Chakib Bouallou
author_sort	Joelle Najib
title	Thermodynamic Study of a Cooled Micro Gas Turbine for a Range Extended Electric Vehicle
title_short	Thermodynamic Study of a Cooled Micro Gas Turbine for a Range Extended Electric Vehicle
title_full	Thermodynamic Study of a Cooled Micro Gas Turbine for a Range Extended Electric Vehicle
title_fullStr	Thermodynamic Study of a Cooled Micro Gas Turbine for a Range Extended Electric Vehicle
title_full_unstemmed	Thermodynamic Study of a Cooled Micro Gas Turbine for a Range Extended Electric Vehicle
title_sort	thermodynamic study of a cooled micro gas turbine for a range extended electric vehicle
publisher	AIDIC Servizi S.r.l.
publishDate	2021
url	https://doaj.org/article/ddae05d41a82412baa913537a4a7bb68
work_keys_str_mv	AT joellenajib thermodynamicstudyofacooledmicrogasturbineforarangeextendedelectricvehicle AT marounnemer thermodynamicstudyofacooledmicrogasturbineforarangeextendedelectricvehicle AT chakibbouallou thermodynamicstudyofacooledmicrogasturbineforarangeextendedelectricvehicle
_version_	1718426875138670592

Thermodynamic Study of a Cooled Micro Gas Turbine for a Range Extended Electric Vehicle

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