Design and Optimization of an Integrated Turbo-Generator and Thermoelectric Generator for Vehicle Exhaust Electrical Energy Recovery

The performance of turbo-generators significantly depends on the design of the power turbine. In addition, the thermoelectric generator can convert waste heat into another source of energy. This research aims to design and optimize an integrated turbo-generator and thermoelectric generator for diese...

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Main Authors: Prasert Nonthakarn, Mongkol Ekpanyapong, Udomkiat Nontakaew, Erik Bohez
Format: Article
Language:English
Published: MDPI AG 2019-08-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/12/16/3134
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author Prasert Nonthakarn
Mongkol Ekpanyapong
Udomkiat Nontakaew
Erik Bohez
author_facet Prasert Nonthakarn
Mongkol Ekpanyapong
Udomkiat Nontakaew
Erik Bohez
author_sort Prasert Nonthakarn
collection DOAJ
description The performance of turbo-generators significantly depends on the design of the power turbine. In addition, the thermoelectric generator can convert waste heat into another source of energy. This research aims to design and optimize an integrated turbo-generator and thermoelectric generator for diesel engines. The goal is to generate electricity from the vehicle exhaust gas. Electrical energy is derived from generators using the flow, pressure, and temperature of exhaust gases from combustion engines and heat-waste. In the case of turbo-generators and thermoelectric generators, the system automatically adjusts the power provided by an inverter. Typically, vehicle exhausts are discarded to the environment. Hence, the proposed conversion to electrical energy will reduce the alternator charging system. This work focuses on design optimization of a turbo-generator and thermoelectric generator for 2500 cc. diesel engines, due to their widespread usage. The concept, however, can also be applied to gasoline engines. Moreover, this model is designed for a hybrid vehicle. Charging during running will save time at the charging station. The optimization by variable van angles of 40°, 50°, 62°, 70°, and 80° shows that the best output power is 62°, which is identical to that calculated. The maximum power outputted from the designed prototype was 1262 watts when operating with an exhaust mass flow rate of 0.1024 kg/s at 3400 rpm (high performance of the engine). This research aims to reduce fuel consumption and reduce pollution from the exhaust, especially for hybrid vehicles.
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spelling doaj.art-f18a9e3b84504d3d8bf44ace2fa7c0372022-12-22T03:59:37ZengMDPI AGEnergies1996-10732019-08-011216313410.3390/en12163134en12163134Design and Optimization of an Integrated Turbo-Generator and Thermoelectric Generator for Vehicle Exhaust Electrical Energy RecoveryPrasert Nonthakarn0Mongkol Ekpanyapong1Udomkiat Nontakaew2Erik Bohez3School of Engineering and Technology, Asian Institute of Technology, Pathum Thani 12120, ThailandSchool of Engineering and Technology, Asian Institute of Technology, Pathum Thani 12120, ThailandFaculty of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandSchool of Engineering and Technology, Asian Institute of Technology, Pathum Thani 12120, ThailandThe performance of turbo-generators significantly depends on the design of the power turbine. In addition, the thermoelectric generator can convert waste heat into another source of energy. This research aims to design and optimize an integrated turbo-generator and thermoelectric generator for diesel engines. The goal is to generate electricity from the vehicle exhaust gas. Electrical energy is derived from generators using the flow, pressure, and temperature of exhaust gases from combustion engines and heat-waste. In the case of turbo-generators and thermoelectric generators, the system automatically adjusts the power provided by an inverter. Typically, vehicle exhausts are discarded to the environment. Hence, the proposed conversion to electrical energy will reduce the alternator charging system. This work focuses on design optimization of a turbo-generator and thermoelectric generator for 2500 cc. diesel engines, due to their widespread usage. The concept, however, can also be applied to gasoline engines. Moreover, this model is designed for a hybrid vehicle. Charging during running will save time at the charging station. The optimization by variable van angles of 40°, 50°, 62°, 70°, and 80° shows that the best output power is 62°, which is identical to that calculated. The maximum power outputted from the designed prototype was 1262 watts when operating with an exhaust mass flow rate of 0.1024 kg/s at 3400 rpm (high performance of the engine). This research aims to reduce fuel consumption and reduce pollution from the exhaust, especially for hybrid vehicles.https://www.mdpi.com/1996-1073/12/16/3134thermoelectric generationturbo-generatorexhaust heat recovery
spellingShingle Prasert Nonthakarn
Mongkol Ekpanyapong
Udomkiat Nontakaew
Erik Bohez
Design and Optimization of an Integrated Turbo-Generator and Thermoelectric Generator for Vehicle Exhaust Electrical Energy Recovery
Energies
thermoelectric generation
turbo-generator
exhaust heat recovery
title Design and Optimization of an Integrated Turbo-Generator and Thermoelectric Generator for Vehicle Exhaust Electrical Energy Recovery
title_full Design and Optimization of an Integrated Turbo-Generator and Thermoelectric Generator for Vehicle Exhaust Electrical Energy Recovery
title_fullStr Design and Optimization of an Integrated Turbo-Generator and Thermoelectric Generator for Vehicle Exhaust Electrical Energy Recovery
title_full_unstemmed Design and Optimization of an Integrated Turbo-Generator and Thermoelectric Generator for Vehicle Exhaust Electrical Energy Recovery
title_short Design and Optimization of an Integrated Turbo-Generator and Thermoelectric Generator for Vehicle Exhaust Electrical Energy Recovery
title_sort design and optimization of an integrated turbo generator and thermoelectric generator for vehicle exhaust electrical energy recovery
topic thermoelectric generation
turbo-generator
exhaust heat recovery
url https://www.mdpi.com/1996-1073/12/16/3134
work_keys_str_mv AT prasertnonthakarn designandoptimizationofanintegratedturbogeneratorandthermoelectricgeneratorforvehicleexhaustelectricalenergyrecovery
AT mongkolekpanyapong designandoptimizationofanintegratedturbogeneratorandthermoelectricgeneratorforvehicleexhaustelectricalenergyrecovery
AT udomkiatnontakaew designandoptimizationofanintegratedturbogeneratorandthermoelectricgeneratorforvehicleexhaustelectricalenergyrecovery
AT erikbohez designandoptimizationofanintegratedturbogeneratorandthermoelectricgeneratorforvehicleexhaustelectricalenergyrecovery